Lincoln Aviator 2020-2024 Service Manual / Electrical / Information and Entertainment Systems / Information and Entertainment System - General Information / Diagnosis and Testing - Information and Entertainment System

Lincoln Aviator: Information and Entertainment System - General Information / Diagnosis and Testing - Information and Entertainment System

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Diagnostic Trouble Code Chart

Module	DTC	Description	Action
ACM	B116A:01	Handset Microphone: General Electrical Failure	GO to Pinpoint Test AB
ACM	B116A:12	Handset Microphone: Circuit Short To Battery	GO to Pinpoint Test AB
ACM	B116A:14	Handset Microphone: Circuit Short To Ground or Open	GO to Pinpoint Test AB
ACM	B117A:01	Backup Microphone: General Electrical Failure	GO to Pinpoint Test AB
ACM	B117A:12	Backup Microphone: Circuit Short To Battery	GO to Pinpoint Test AB
ACM	B117A:14	Backup Microphone: Circuit Short To Ground or Open	GO to Pinpoint Test AB
ACM	B128C:13	Speaker #15: Circuit Open	GO to Pinpoint Test G
ACM	B13F5:01	Microphone 3: General Electrical Failure	GO to Pinpoint Test AB
ACM	B13F5:12	Microphone 3: Circuit Short To Battery	GO to Pinpoint Test AB
ACM	B13F5:14	Microphone 3: Circuit Short To Ground or Open	GO to Pinpoint Test AB
ACM	B150C:01	Automobile Audio Bus (A2B) Node 1: General Electrical Failure	GO to Pinpoint Test D
ACM	B150C:11	Automobile Audio Bus (A2B) Node 1: Circuit Short To Ground	GO to Pinpoint Test D
ACM	B150C:12	Automobile Audio Bus (A2B) Node 1: Circuit Short To Battery	GO to Pinpoint Test D
ACM	B150C:13	Automobile Audio Bus (A2B) Node 1: Circuit Open	GO to Pinpoint Test D
ACM	B150C:55	Automobile Audio Bus (A2B) Node 1: Not Configured	GO to Pinpoint Test D
ACM	B150C:87	Automobile Audio Bus (A2B) Node 1: Missing Message	GO to Pinpoint Test D
ACM	B150C:8F	Automobile Audio Bus (A2B) Node 1: Erratic	GO to Pinpoint Test D
ACM	B150C:95	Automobile Audio Bus (A2B) Node 1: Incorrect Assembly	GO to Pinpoint Test D
ACM	B1511:01	Automobile Audio Bus (A2B) Master Node: General Electrical Failure	GO to Pinpoint Test D
ACM	B1511:11	Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground	GO to Pinpoint Test D
ACM	B1511:12	Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery	GO to Pinpoint Test D
ACM	B1511:13	Automobile Audio Bus (A2B) Master Node: Circuit Open	GO to Pinpoint Test D
ACM	B1511:95	Automobile Audio Bus (A2B) Master Node: Incorrect Assembly	GO to Pinpoint Test D
ACM	B1A01:01	Speaker #1: General Electrical Failure	GO to Pinpoint Test G
ACM	B1A01:11	Speaker #1: Circuit Short To Ground	GO to Pinpoint Test G
ACM	B1A01:12	Speaker #1: Circuit Short To Battery	GO to Pinpoint Test G
ACM	B1A01:13	Speaker #1: Circuit Open	GO to Pinpoint Test G
ACM	B1A02:01	Speaker #2: General Electrical Failure	GO to Pinpoint Test G
ACM	B1A02:11	Speaker #2: Circuit Short To Ground	GO to Pinpoint Test G
ACM	B1A02:12	Speaker #2: Circuit Short To Battery	GO to Pinpoint Test G
ACM	B1A02:13	Speaker #2: Circuit Open	GO to Pinpoint Test G
ACM	B1A03:01	Speaker #3: General Electrical Failure	GO to Pinpoint Test G
ACM	B1A03:11	Speaker #3: Circuit Short To Ground	GO to Pinpoint Test G
ACM	B1A03:12	Speaker #3: Circuit Short To Battery	GO to Pinpoint Test G
ACM	B1A03:13	Speaker #3: Circuit Open	GO to Pinpoint Test G
ACM	B1A04:01	Speaker #4: General Electrical Failure	GO to Pinpoint Test G
ACM	B1A04:11	Speaker #4: Circuit Short To Ground	GO to Pinpoint Test G
ACM	B1A04:12	Speaker #4: Circuit Short To Battery	GO to Pinpoint Test G
ACM	B1A04:13	Speaker #4: Circuit Open	GO to Pinpoint Test G
ACM	B1A06:01	Speaker #6: General Electrical Failure	GO to Pinpoint Test G
ACM	B1A06:11	Speaker #6: Circuit Short To Ground	GO to Pinpoint Test G
ACM	B1A06:12	Speaker #6: Circuit Short To Battery	GO to Pinpoint Test G
ACM	B1A06:13	Speaker #6: Circuit Open	GO to Pinpoint Test G
ACM	B1A07:13	Speaker #7: Circuit Open	GO to Pinpoint Test G
ACM	B1A08:13	Speaker #8: Circuit Open	GO to Pinpoint Test G
ACM	B1A09:13	Speaker #9: Circuit Open	GO to Pinpoint Test G
ACM	B1A10:13	Speaker #10: Circuit Open	GO to Pinpoint Test G
ACM	B1A89:11	Satellite Antenna: Circuit Short To Ground	GO to Pinpoint Test B
ACM	B1A89:13	Satellite Antenna: Circuit Open	GO to Pinpoint Test B
ACM	B1D55:11	Antenna #2: Circuit Short To Ground	GO to Pinpoint Test A
ACM	B1D55:15	Antenna #2: Circuit Short To Battery or Open	GO to Pinpoint Test A
ACM	U0100:00	Lost Communication with ECM/PCM "A": No Sub Type Information	GO to Pinpoint Test AC
ACM	U0121:00	Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information	GO to Pinpoint Test AD
ACM	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test AE
ACM	U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test AG
ACM	U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	GO to Pinpoint Test AS
ACM	U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test AX
ACM	U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	GO to Pinpoint Test AY
ACM	U201A:51	Control Module Main Calibration Data: Not Programmed	GO to Pinpoint Test BE
ACM	U201B:04	Control Module Calibration Data #2: System Internal Failure	GO to Pinpoint Test BE
ACM	U201B:51	Control Module Calibration Data #2: Not Programmed	GO to Pinpoint Test BE
ACM	U201B:55	Control Module Calibration Data #2: Not Configured	GO to Pinpoint Test BE
ACM	U2024:00	Control Module Cal-Config Data: No Sub Type Information	GO to Pinpoint Test BE
ACM	U2024:57	Control Module Cal-Config Data: Invalid / Incompatible Software Component	GO to Pinpoint Test BE
ACM	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test BE
ACM	U2101:00	Control Module Configuration Incompatible: No Sub Type Information	GO to Pinpoint Test BE
ACM	U3000:41	Control Module: General Checksum Failure	GO to Pinpoint Test BF
ACM	U3000:42	Control Module: General Memory Failure	GO to Pinpoint Test BF
ACM	U3000:92	Control Module: Performance or Incorrect Operation	GO to Pinpoint Test BF
ACM	U3000:94	Control Module: Unexpected Operation	GO to Pinpoint Test BF
ACM	U3000:96	Control Module: Component Internal Failure	GO to Pinpoint Test BF
ACM	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test BA
ACM	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test BB
APIM	B108E:01	Display: General Electrical Failure	GO to Pinpoint Test N
APIM	B108E:02	Display: General Signal Failure	GO to Pinpoint Test N
APIM	B108E:4A	Display: Incorrect Component Installed	GO to Pinpoint Test N
APIM	B108E:4B	Display: Over Temperature	GO to Pinpoint Test N
APIM	B108E:87	Display: Missing Message	GO to Pinpoint Test N
APIM	B119F:01	GPS Antenna: General Electrical Failure	GO to Pinpoint Test U
APIM	B119F:13	GPS Antenna: Circuit Open	GO to Pinpoint Test U
APIM	B1252:11	USB Port: Circuit Short to Ground	GO to Pinpoint Test Q
APIM	B1252:13	USB Port: Circuit Open	GO to Pinpoint Test Q
APIM	B14FD:11	External Media Control Connectivity: Circuit Short To Ground	GO to Pinpoint Test Q
APIM	B1D79:11	Microphone Input: Circuit Short To Ground	GO to Pinpoint Test P
APIM	B1D79:12	Microphone Input: Circuit Short To Battery	GO to Pinpoint Test P
APIM	B1D79:13	Microphone Input: Circuit Open	GO to Pinpoint Test P
APIM	U0100:00	Lost Communication with ECM/PCM "A": No Sub Type Information	GO to Pinpoint Test AC
APIM	U0121:00	Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information	GO to Pinpoint Test AD
APIM	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test AE
APIM	U0151:00	Lost Communication With Restraints Control Module: No Sub Type Information	GO to Pinpoint Test AF
APIM	U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test AG
APIM	U0159:00	Lost Communication With Parking Assist Control Module "A": No Sub Type Information	GO to Pinpoint Test AH
APIM	U0162:00	Lost Communication With Navigation Display Module: No Sub Type Information	GO to Pinpoint Test N
APIM	U0184:00	Lost Communication With Radio: No Sub Type Information	GO to Pinpoint Test AJ
APIM	U0196:00	Lost Communication With Entertainment Control Module-Rear "A": No Sub Type Information	GO to Pinpoint Test AK
APIM	U0198:00	Lost Communication With Telematic Control Module: No Sub Type Information	GO to Pinpoint Test AL
APIM	U0208:00	Lost Communication With "Seat Control Module A": No Sub Type Information	GO to Pinpoint Test AM
APIM	U0209:00	Lost Communication With "Seat Control Module B": No Sub Type Information	GO to Pinpoint Test AN
APIM	U020C:00	Lost Communication with Wireless Accessory Charging Module "A": No Sub Type Information	GO to Pinpoint Test AO
APIM	U0214:00	Lost Communication With Remote Function Actuation: No Sub Type Information	GO to Pinpoint Test AP
APIM	U0232:00	Lost Communication With Side Obstacle Detection Control Module - Left: No Sub Type Information	GO to Pinpoint Test AQ
APIM	U0233:00	Lost Communication With Side Obstacle Detection Control Module - Right: No Sub Type Information	GO to Pinpoint Test AR
APIM	U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	GO to Pinpoint Test AS
APIM	U023B:00	Lost Communication With Image Processing Module B: No Sub Type Information	GO to Pinpoint Test AT
APIM	U023B:00	Lost Communication with Seat Control Module "G": No Sub Type Information	GO to Pinpoint Test AV
APIM	U023C:00	Lost Communication with Seat Control Module "H": No Sub Type Information	GO to Pinpoint Test AW
APIM	U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	GO to Pinpoint Test AY
APIM	U0293:00	Lost Communication With Hybrid/EV Powertrain Control Module: No Sub Type Information	GO to Pinpoint Test AZ
APIM	U0415:00	Invalid Data Received From Anti-Lock Brake System (ABS) Control Module: No Sub Type Information	GO to Pinpoint Test BD
APIM	U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	GO to Pinpoint Test BD
APIM	U0423:00	Invalid Data Received From Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test BD
APIM	U0452:00	Invalid Data Received From Restraints Control Module: No Sub Type Information	GO to Pinpoint Test BD
APIM	U1A00:87	Private Communication Network: Missing Message	GO to Pinpoint Test B
APIM	U2017:45	Control Module Software #2: Program Memory Failure	GO to Pinpoint Test BE
APIM	U2017:51	Control Module Software #2: Not Programmed	GO to Pinpoint Test BE
APIM	U2017:52	Control Module Software #2: Not Activated	GO to Pinpoint Test BE
APIM	U2017:54	Control Module Software #2: Missing Calibration	GO to Pinpoint Test BE
APIM	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test BE
APIM	U2101:00	Control Module Configuration Incompatible: No Sub Type Information	GO to Pinpoint Test BE
APIM	U3000:04	Control Module: System Internal Failure	GO to Pinpoint Test BF
APIM	U3000:09	Control Module: Component Failure	GO to Pinpoint Test BF
APIM	U3000:41	Control Module: General Checksum Failure	GO to Pinpoint Test BF
APIM	U3000:88	Control Module: Bus Off	GO to Pinpoint Test BC
APIM	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test BA
APIM	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test BB
DSP	B128A:01	Speaker #13: General Electrical Failure	GO to Pinpoint Test J
DSP	B128A:11	Speaker #13: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B128A:12	Speaker #13: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B128A:13	Speaker #13: Circuit Open	GO to Pinpoint Test J
DSP	B128B:01	Speaker #14: General Electrical Failure	GO to Pinpoint Test J
DSP	B128B:11	Speaker #14: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B128B:12	Speaker #14: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B128B:13	Speaker #14: Circuit Open	GO to Pinpoint Test J
DSP	B128C:01	Speaker #15: General Electrical Failure	GO to Pinpoint Test J
DSP	B128C:11	Speaker #15: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B128C:12	Speaker #15: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B128C:13	Speaker #15: Circuit Open	GO to Pinpoint Test J
DSP	B128D:01	Speaker #16: General Electrical Failure	GO to Pinpoint Test J
DSP	B128D:11	Speaker #16: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B128D:12	Speaker #16: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B128D:13	Speaker #16: Circuit Open	GO to Pinpoint Test J
DSP	B128E:01	Speaker #17: General Electrical Failure	GO to Pinpoint Test J
DSP	B128E:11	Speaker #17: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B128E:12	Speaker #17: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B128E:13	Speaker #17: Circuit Open	GO to Pinpoint Test J
DSP	B128F:01	Speaker #18: General Electrical Failure	GO to Pinpoint Test J
DSP	B128F:11	Speaker #18: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B128F:12	Speaker #18: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B128F:13	Speaker #18: Circuit Open	GO to Pinpoint Test J
DSP	B1290:01	Speaker #19: General Electrical Failure	GO to Pinpoint Test J
DSP	B1290:11	Speaker #19: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1290:12	Speaker #19: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1290:13	Speaker #19: Circuit Open	GO to Pinpoint Test J
DSP	B1291:01	Speaker #20: General Electrical Failure	GO to Pinpoint Test J
DSP	B1291:11	Speaker #20: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1291:12	Speaker #20: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1291:13	Speaker #20: Circuit Open	GO to Pinpoint Test J
DSP	B13FB:11	Audio Enable Line: Circuit Short To Ground	GO to Pinpoint Test D
DSP	B1A01:01	Speaker #1: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A01:01	Speaker #1: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A01:11	Speaker #1: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A01:11	Speaker #1: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A01:12	Speaker #1: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A01:12	Speaker #1: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A01:13	Speaker #1: Circuit Open	GO to Pinpoint Test I
DSP	B1A01:13	Speaker #1: Circuit Open	GO to Pinpoint Test J
DSP	B1A02:01	Speaker #2: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A02:01	Speaker #2: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A02:11	Speaker #2: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A02:11	Speaker #2: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A02:12	Speaker #2: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A02:12	Speaker #2: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A02:13	Speaker #2: Circuit Open	GO to Pinpoint Test I
DSP	B1A02:13	Speaker #2: Circuit Open	GO to Pinpoint Test J
DSP	B1A03:01	Speaker #3: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A03:01	Speaker #3: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A03:11	Speaker #3: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A03:11	Speaker #3: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A03:12	Speaker #3: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A03:12	Speaker #3: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A03:13	Speaker #3: Circuit Open	GO to Pinpoint Test I
DSP	B1A03:13	Speaker #3: Circuit Open	GO to Pinpoint Test J
DSP	B1A04:01	Speaker #4: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A04:01	Speaker #4: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A04:11	Speaker #4: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A04:11	Speaker #4: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A04:12	Speaker #4: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A04:12	Speaker #4: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A04:13	Speaker #4: Circuit Open	GO to Pinpoint Test I
DSP	B1A04:13	Speaker #4: Circuit Open	GO to Pinpoint Test J
DSP	B1A05:01	Speaker #5: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A05:01	Speaker #5: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A05:11	Speaker #5: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A05:11	Speaker #5: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A05:12	Speaker #5: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A05:12	Speaker #5: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A05:13	Speaker #5: Circuit Open	GO to Pinpoint Test I
DSP	B1A05:13	Speaker #5: Circuit Open	GO to Pinpoint Test J
DSP	B1A06:01	Speaker #6: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A06:01	Speaker #6: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A06:11	Speaker #6: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A06:11	Speaker #6: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A06:12	Speaker #6: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A06:12	Speaker #6: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A06:13	Speaker #6: Circuit Open	GO to Pinpoint Test I
DSP	B1A06:13	Speaker #6: Circuit Open	GO to Pinpoint Test J
DSP	B1A07:01	Speaker #7: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A07:01	Speaker #7: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A07:11	Speaker #7: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A07:11	Speaker #7: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A07:12	Speaker #7: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A07:12	Speaker #7: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A07:13	Speaker #7: Circuit Open	GO to Pinpoint Test I
DSP	B1A07:13	Speaker #7: Circuit Open	GO to Pinpoint Test J
DSP	B1A08:01	Speaker #8: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A08:01	Speaker #8: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A08:11	Speaker #8: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A08:11	Speaker #8: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A08:12	Speaker #8: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A08:12	Speaker #8: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A08:13	Speaker #8: Circuit Open	GO to Pinpoint Test I
DSP	B1A08:13	Speaker #8: Circuit Open	GO to Pinpoint Test J
DSP	B1A09:01	Speaker #9: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A09:01	Speaker #9: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A09:11	Speaker #9: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A09:11	Speaker #9: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A09:12	Speaker #9: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A09:12	Speaker #9: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A09:13	Speaker #9: Circuit Open	GO to Pinpoint Test I
DSP	B1A09:13	Speaker #9: Circuit Open	GO to Pinpoint Test J
DSP	B1A10:01	Speaker #10: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A10:01	Speaker #10: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A10:11	Speaker #10: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A10:11	Speaker #10: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A10:12	Speaker #10: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A10:12	Speaker #10: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A10:13	Speaker #10: Circuit Open	GO to Pinpoint Test I
DSP	B1A10:13	Speaker #10: Circuit Open	GO to Pinpoint Test J
DSP	B1A11:01	Speaker #11: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A11:01	Speaker #11: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A11:11	Speaker #11: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A11:11	Speaker #11: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A11:12	Speaker #11: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A11:12	Speaker #11: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A11:13	Speaker #11: Circuit Open	GO to Pinpoint Test I
DSP	B1A11:13	Speaker #11: Circuit Open	GO to Pinpoint Test J
DSP	B1A12:01	Speaker #12: General Electrical Failure	GO to Pinpoint Test I
DSP	B1A12:01	Speaker #12: General Electrical Failure	GO to Pinpoint Test J
DSP	B1A12:11	Speaker #12: Circuit Short To Ground	GO to Pinpoint Test I
DSP	B1A12:11	Speaker #12: Circuit Short To Ground	GO to Pinpoint Test J
DSP	B1A12:12	Speaker #12: Circuit Short To Battery	GO to Pinpoint Test I
DSP	B1A12:12	Speaker #12: Circuit Short To Battery	GO to Pinpoint Test J
DSP	B1A12:13	Speaker #12: Circuit Open	GO to Pinpoint Test I
DSP	B1A12:13	Speaker #12: Circuit Open	GO to Pinpoint Test J
DSP	U0100:00	Lost Communication with ECM/PCM "A": No Sub Type Information	GO to Pinpoint Test AC
DSP	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test AE
DSP	U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test AG
DSP	U0184:00	Lost Communication With Radio: No Sub Type Information	GO to Pinpoint Test AJ
DSP	U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test AX
DSP	U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	GO to Pinpoint Test AY
DSP	U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	GO to Pinpoint Test BD
DSP	U201A:51	Control Module Main Calibration Data: Not Programmed	GO to Pinpoint Test BE
DSP	U2024:41	Control Module Cal-Config Data: General Checksum Failure	GO to Pinpoint Test BE
DSP	U2024:48	Control Module Cal-Config Data: Supervision Software	GO to Pinpoint Test BE
DSP	U2024:51	Control Module Cal-Config Data: Not Programmed	GO to Pinpoint Test BE
DSP	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test BE
DSP	U2101:00	Control Module Configuration Incompatible: No Sub Type Information	GO to Pinpoint Test BE
DSP	U3000:41	Control Module: General Checksum Failure	GO to Pinpoint Test BF
DSP	U3000:42	Control Module: General Memory Failure	GO to Pinpoint Test BF
DSP	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test BA
DSP	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test BB
FCIMB	B10B8:63	Push Buttons: Circuit / Component Protection Time-Out	GO to Pinpoint Test M
FCIMB	B10B8:63	Push Buttons: Circuit / Component Protection Time-Out	GO to Pinpoint Test BF
FCIMB	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test AE
FCIMB	U0151:00	Lost Communication With Restraints Control Module: No Sub Type Information	GO to Pinpoint Test AF
FCIMB	U0164:00	Lost Communication With HVAC Control Module: No Sub Type Information	GO to Pinpoint Test AI
FCIMB	U0249:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test AU
FCIMB	U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test AX
FCIMB	U0422:81	Invalid Data Received From Body Control Module: Invalid Serial Data Received	GO to Pinpoint Test BD
FCIMB	U0554:00	Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test BD
FCIMB	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test BE
FCIMB	U3000:49	Control Module: Internal Electronic Failure	GO to Pinpoint Test BF
FCIMB	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test BA
FCIMB	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test BB
RACM	U0100:00	Lost Communication with ECM/PCM "A": No Sub Type Information	GO to Pinpoint Test AC
RACM	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test AE
RACM	U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test AG
RACM	U0162:00	Lost Communication With Navigation Display Module: No Sub Type Information	GO to Pinpoint Test BF
RACM	U0184:00	Lost Communication With Radio: No Sub Type Information	GO to Pinpoint Test AJ
RACM	U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	GO to Pinpoint Test AS
RACM	U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test AX
RACM	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test BE
RACM	U2101:00	Control Module Configuration Incompatible: No Sub Type Information	GO to Pinpoint Test BE
RACM	U3000:41	Control Module: General Checksum Failure	GO to Pinpoint Test BF
RACM	U3000:42	Control Module: General Memory Failure	GO to Pinpoint Test BF
RACM	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test BA
RACM	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test BB
SIMA	B11AF:11	Phone Button: Circuit Short To Ground	GO to Pinpoint Test L
SIMA	B11AF:12	Phone Button: Circuit Short To Battery	GO to Pinpoint Test L
SIMA	B11AF:13	Phone Button: Circuit Open	GO to Pinpoint Test L
SIMA	B11AF:71	Phone Button: Actuator Stuck	GO to Pinpoint Test L
SIMA	B137F:71	Steering Wheel Left Switch Pack: Actuator Stuck	GO to Pinpoint Test BF
SIMA	B1380:4A	Steering Wheel Right Switch Pack: Incorrect Component Installed	GO to Pinpoint Test L
SIMA	B1380:71	Steering Wheel Right Switch Pack: Actuator Stuck	GO to Pinpoint Test L
TCU	B1246:11	GSM (Group System for Mobile) Antenna: Circuit Short To Ground	GO to Pinpoint Test W
TCU	B1246:12	GSM (Group System for Mobile) Antenna: Circuit Short To Battery	GO to Pinpoint Test W
TCU	B1246:13	GSM (Group System for Mobile) Antenna: Circuit Open	GO to Pinpoint Test W
TCU	B1D55:11	Antenna #2: Circuit Short To Ground	GO to Pinpoint Test X
TCU	B1D55:12	Antenna #2: Circuit Short To Battery	GO to Pinpoint Test X
TCU	B1D55:13	Antenna #2: Circuit Open	GO to Pinpoint Test X
TCU	U0100:00	Lost Communication with ECM/PCM "A": No Sub Type Information	GO to Pinpoint Test AC
TCU	U0140:00	Lost Communication With Body Control Module: No Sub Type Information	GO to Pinpoint Test AE
TCU	U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	GO to Pinpoint Test AG
TCU	U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test AX
TCU	U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	GO to Pinpoint Test BD
TCU	U0554:00	Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information	GO to Pinpoint Test BD
TCU	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test BE
TCU	U2101:00	Control Module Configuration Incompatible: No Sub Type Information	GO to Pinpoint Test BE
TCU	U3000:04	Control Module: System Internal Failure	GO to Pinpoint Test BF
TCU	U3000:09	Control Module: Component Failure	GO to Pinpoint Test BF
TCU	U3000:41	Control Module: General Checksum Failure	GO to Pinpoint Test BF
TCU	U3000:42	Control Module: General Memory Failure	GO to Pinpoint Test BF
TCU	U3000:52	Control Module: Not Activated	GO to Pinpoint Test BF
TCU	U3000:56	Control Module: Invalid / Incompatible Configuration	GO to Pinpoint Test BF
TCU	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test BA
TCU	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test BB

Symptom Charts

Symptom Chart: Radio

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
A module does not respond to the diagnostic scan tool	Refer to the Pinpoint Test	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The AM radio is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test A
The FM radio is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test A
Poor AM reception	Refer to the Pinpoint Test	GO to Pinpoint Test A
Poor FM reception	Refer to the Pinpoint Test	GO to Pinpoint Test A
Continuous seek or scan in AM/ FM mode	Refer to the Pinpoint Test	GO to Pinpoint Test A
Poor satellite radio reception	Refer to the Pinpoint Test	GO to Pinpoint Test B
Poor sound quality or no sound while in satellite radio mode - all other functions operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test B
The satellite radio is inoperative or does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test B
The audio system does not operate correctly from the FCIMB	Refer to the Pinpoint Test	GO to Pinpoint Test K
One or more audio steering wheel control button is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test L
Unable to change the audio source	Refer to the Pinpoint Test	GO to Pinpoint Test D
The display unit displays Audio System Off at regular intervals	Refer to the Pinpoint Test	GO to Pinpoint Test D

Symptom Chart: Speakers and Sound Quality - 10 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
A loud popping sound is heard from the speakers when cycling the ignition	Refer to the Pinpoint Test	GO to Pinpoint Test C
No sound from all speakers	Refer to the Pinpoint Test	GO to Pinpoint Test D
The left speakers are inoperative when using Bluetooth and USB hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
The right speakers are inoperative when using Bluetooth and USB hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
Poor sound quality or distorted sound from one or more speakers (not all speakers)	Refer to the Pinpoint Test	GO to Pinpoint Test E
The speed compensated volume does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test F
The instrument panel center speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The left front door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The right front door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The left front door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The right front door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The left rear door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The right rear door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The left rear door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The right rear door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test G
The subwoofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test H

Symptom Chart: Speakers and Sound Quality - 14 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
A loud popping sound is heard from the speakers when cycling the ignition	Refer to the Pinpoint Test	GO to Pinpoint Test C
No sound from all speakers	Refer to the Pinpoint Test	GO to Pinpoint Test D
The left speakers are inoperative when using Bluetooth and USB hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
The right speakers are inoperative when using Bluetooth and USB hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
Poor sound quality or distorted sound from one or more speakers (not all speakers)	Refer to the Pinpoint Test	GO to Pinpoint Test E
The speed compensated volume does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test F
The instrument panel center speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The left front door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The right front door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The left front door midrange speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The right front door midrange speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The left front door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The right front door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The left rear door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The right rear door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The left rear door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The right rear door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I
The subwoofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test I

Symptom Chart: Speakers and Sound Quality - 28 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
A loud popping sound is heard from the speakers when cycling the ignition	Refer to the Pinpoint Test	GO to Pinpoint Test C
No sound from all speakers	Refer to the Pinpoint Test	GO to Pinpoint Test D
The left speakers are inoperative when using Bluetooth and USB hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
The right speakers are inoperative when using Bluetooth and USB hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
Poor sound quality or distorted sound from one or more speakers (not all speakers)	Refer to the Pinpoint Test	GO to Pinpoint Test E
The speed compensated volume does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test F
The instrument panel center speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left front door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right front door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left front door midrange speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right front door midrange speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left front door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right front door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left rear door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right rear door tweeter speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left rear door midrange speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right rear door midrange speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left rear door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right rear door woofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left D-pillar speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right D-pillar speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left front overhead speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right front overhead speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The left rear overhead speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The right rear overhead speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J
The subwoofer speaker is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test J

Symptom Chart: FCIMB

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
The FCIMB illumination is inoperative or does not dim	Refer to the Pinpoint Test	REFER to: Instrument Panel and Interior Switches Illumination (413-00 Instrument Panel and Interior Switches Illumination, Diagnosis and Testing).

Symptom Chart: Display Unit

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
The display unit is blank or black	Refer to the Pinpoint Test	GO to Pinpoint Test N
The display unit is not responsive to touch	Refer to the Pinpoint Test	GO to Pinpoint Test N
The display unit is slow to respond to touch	Refer to the Pinpoint Test	GO to Pinpoint Test N
The image on the display unit is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear	Refer to the Pinpoint Test	GO to Pinpoint Test N
The image on the display unit is locked or frozen	Refer to the Pinpoint Test	GO to Pinpoint Test N

Symptom Chart: SYNC Features/Media/Phone

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
The Driver Assist button is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test M
The SYNC system does not operate correctly from the FCIMB	Refer to the Pinpoint Test	GO to Pinpoint Test K
One or more steering wheel SYNC control button is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test L
The left speakers are inoperative when using Bluetooth and media hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
The right speakers are inoperative when using Bluetooth and media hub SYNC features	Refer to the Pinpoint Test	GO to Pinpoint Test O
The SYNC system audible prompts are inoperative or do not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test O
During a phone call, no incoming audio is heard in the vehicle	Refer to the Pinpoint Test	GO to Pinpoint Test O
Poor sound quality, distorted, or no sound while in SYNC mode	Refer to the Pinpoint Test	GO to Pinpoint Test O
Voice commands are inoperative or outgoing audio is not transmitted during a phone call	Refer to the Pinpoint Test	GO to Pinpoint Test P
Unable to pair Bluetooth device or the Bluetooth functionality is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test R
An individual Bluetooth device or feature is inoperative	Device compatibility	GO to Pinpoint Test S
A USB device is not recognized by the SYNC system or audio files on a USB device are not found using the SYNC system from one or both USB ports	Refer to the Pinpoint Test	GO to Pinpoint Test Q
The 911 Assist or Emergency Assistance Not Operational message displays	Refer to the Pinpoint Test	GO to Pinpoint Test T
SYNC AppLink is inoperative or does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test Y
The Deep Sleep Mode Activated notification is received on the FordPass App	Refer to the Pinpoint Test	GO to Pinpoint Test V
SYNC Connect is inoperative or does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test W
Android Auto™ or Apple CarPlay™ is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test Z
The SYNC system is unable to discover or log onto an unsecure Wi-Fi connection	Refer to the Owner Literature	GO to Pinpoint Test AA
The SYNC Wi-Fi connection does not operate correctly	Refer to the Owner Literature	GO to Pinpoint Test AA
A device (smartphone/laptop) is unable to discover the vehicle Wi-Fi Hotspot	Wi-Fi Hotspot or visibility is turned off	GO to Pinpoint Test AA
A device (smartphone/laptop) is unable to log onto the vehicle Wi-Fi Hotspot connection after master reset from SYNC Master Reset menu	SSID and password set to factory defaults	GO to Pinpoint Test AA
The vehicle Wi-Fi hotspot feature is inoperative, experiencing poor data speed or cannot stream any data	Refer to the Pinpoint Test	GO to Pinpoint Test X

Symptom Chart: Navigation/Compass

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition	Possible Sources	Actions
The compass is inoperative or does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test U
Navigation is inoperative or does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test U
SIRIUS Travel Link™ or digital radio data link is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test B

Pinpoint Tests

PINPOINT TEST A : POOR AM (AMPLITUDE MODULATION) - FM (FREQUENCY MODULATION) RECEPTION

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

Audio Unit Coaxial Cable Connections

Item	Part Number	Description
1	—	Audio unit antenna connection
2	—	FM2 diversity antenna connection
3	—	Satellite radio connection

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM B1D55:11	Antenna #2: Circuit Short To Ground	Sets in continuous memory when the ACM detects a short to ground from the FM 2 diversity antenna cable.
ACM B1D55:15	Antenna #2: Circuit Short To Battery Or Open	Sets in continuous memory when the ACM detects a short to voltage or an open from the FM 2 diversity antenna cable.

Possible Sources

Wiring, terminals, or connectors
Ignition system
Noise suppression equipment
Generator
Antenna cable
Antenna amplifier
On-glass antenna grid
ACM

Visual Inspection and Pre-checks

Inspect the on-glass antenna grid for damage.

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.

A1 CHECK THE AUDIO SYSTEM RECEPTION WITH THE ENGINE RUNNING

Operate the audio system in AM/ FM mode.

Check the reception with the engine running and with the engine off.

Does the poor reception only occur with the engine running?

Yes

For non-hybrid vehicles, GO to A2
For hybrid vehicles, GO to A3

GO to A4

A2 CHECK THE GENERATOR

Ignition OFF.

Disconnect the generator "A" connector.

NOTE: Do not increase the engine RPM above idle speed. Start the engine.

NOTE: Do not increase the RPM above idle speed. Incorrect test results may occur if the engine speed is increased above idle. With the engine at idle only, operate the audio system in AM/ FM mode.

Is the reception OK?

Yes

INSTALL a new generator. REFER to the appropriate Removal and Installation procedure in section 414-02.

GO to A3

A3 CHECK THE IGNITION CIRCUITS

Ignition OFF.

Connect the generator "A" connector.

Inspect the engine compartment and make sure all ignition coils are correctly and securely connected, and no cracks are visible in the coil housings.

Inspect all the wiring harnesses and connectors for damaged insulation and loose or broken conditions.

Are the ignition components OK?

Yes

USE a jumper cable to ground various parts of the vehicle to the frame (for example: engine, fenders, quarter panels, stone deflectors, air cleaner, and body sheet metal). When the noise is eliminated, PROVIDE a permanent ground where necessary.

No	REPAIR the ignition system as necessary.

A4 INSPECT THE ANTENNA ON-GLASS GRID

Ignition OFF.

Inspect the connection to the antenna amplifier and the antenna on-glass grid for damage.

Is the connection to the antenna amplifier OK and the on-glass antenna grid free from damage?

Yes

GO to A5

No	REPAIR the connection to the antenna amplifier or the window grid as necessary.

A5 CHECK FOR VOLTAGE TO THE ANTENNA AMPLIFIERS

NOTE: The audio unit antenna cable is also known as the AM/ FM1 antenna cable.

Ignition OFF.

Disconnect the audio unit antenna cable to the AM/ FM1 antenna amplifier.

Disconnect the FM2 diversity antenna cable to the FM2 diversity antenna amplifier (if equipped).

Ignition ON.

Measure:

Audio Unit Antenna Cable

Positive Lead Measurement / Action Negative Lead

audio unit antenna cable core Ground

FM2 Diversity Antenna Cable

Positive Lead Measurement / Action Negative Lead

FM2 diversity antenna cable core Ground

Is the voltage approximately 5 volts?

Yes

GO to A10

No	FOLLOW the diagnostics for the suspect antenna cable. GO to A6

A6 CHECK THE ANTENNA CABLE FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the suspect antenna cable from the ACM .

Measure:

Audio Unit Antenna Cable

Positive Lead	Measurement / Action	Negative Lead
Audio unit antenna cable core		Ground
Audio unit antenna cable shield		Ground

FM2 Diversity Antenna Cable

Positive Lead	Measurement / Action	Negative Lead
FM2 diversity antenna cable core		Ground
FM2 diversity antenna cable shield		Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to A7

No	INSTALL a new cable for the one in question. REFER to: Audio Unit Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

A7 CHECK THE ANTENNA CABLE FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:

Audio Unit Antenna Cable

Positive Lead	Measurement / Action	Negative Lead
Audio unit antenna cable core		Ground
Audio unit antenna cable shield		Ground

FM2 Diversity Antenna Cable

Positive Lead	Measurement / Action	Negative Lead
FM2 diversity antenna cable core		Ground
FM2 diversity antenna cable shield		Ground

Is any voltage present?

Yes

INSTALL a new cable for the one in question.
REFER to: Audio Unit Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

GO to A8

A8 CHECK THE ANTENNA CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Ignition OFF.

Measure:

Audio Unit Antenna Cable

Positive Lead Measurement / Action Negative Lead

Audio unit antenna cable core Audio unit antenna cable shield

FM2 Diversity Antenna Cable

Positive Lead Measurement / Action Negative Lead

FM2 diversity antenna cable core FM2 diversity antenna cable shield

Are the resistances greater than 10,000 ohms?

Yes

GO to A9

No	INSTALL a new cable for the one in question. REFER to: Audio Unit Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

A9 CHECK THE ANTENNA CABLE FOR AN OPEN

Measure:

Audio Unit Antenna Cable

Positive Lead	Measurement / Action	Negative Lead
Audio unit antenna cable core at the AM/ FM1 antenna amplifier		Audio unit antenna cable core at the ACM

FM2 Diversity Antenna Cable

Positive Lead	Measurement / Action	Negative Lead
FM2 diversity antenna cable core at the FM2 diversity antenna amplifier		FM2 diversity antenna cable core at the ACM

Are the resistances less than 3 ohms?

Yes

GO to A12

No	INSTALL a new cable in question.

A10 ISOLATE THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) 1 ANTENNA AMPLIFIER

Ignition OFF.

Connect the FM2 diversity antenna cable to the FM2 diversity antenna amplifier (if equipped).

Install a new AM/ FM1 antenna amplifier.
REFER to: AM/FM1 Antenna Amplifier (415-00 Information and Entertainment System - General Information, Removal and Installation).

Operate the audio system in AM/ FM mode.

Is the reception OK?

Yes

The system is operating correctly. The concern was caused by the antenna amplifier.

No	If equipped with a diversity FM2 antenna, GO to A11 If not equipped with a diversity FM2 antenna, GO to A12

A11 ISOLATE THE FM (FREQUENCY MODULATION) 2 DIVERSITY ANTENNA AMPLIFIER

Install a new FM2 diversity antenna amplifier.
REFER to: FM2 Diversity Antenna Amplifier (415-00 Information and Entertainment System - General Information, Removal and Installation).

Operate the audio system in FM mode.

Is the reception OK?

Yes

The system is operating correctly. The concern was caused by the antenna amplifier.

GO to A12

A12 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B : SATELLITE RADIO/SIRIUS TRAVEL LINK ™/DIGITAL RADIO DATA LINK CONCERN

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

Audio Unit Coaxial Cable Connections

Item	Part Number	Description
1	—	Audio unit antenna connection
2	—	FM2 diversity antenna connection
3	—	Satellite radio connection

When a satellite radio subscription is active, the ESN of the satellite radio receiver built into the ACM associates with the VIN.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM B1A89:11	Satellite Antenna: Circuit Short To Ground	Sets in continuous memory or during the on-demand self-test when the ACM detects a short to ground from the satellite radio cable.
ACM B1A89:13	Satellite Antenna: Circuit Open	Sets in continuous memory or during the on-demand self-test when the ACM detects an open from the satellite radio cable.
APIM U1A00:87	Private Communication Network: Missing Message	Sets during the on-demand self-test when the APIM does not receive a valid response from the ACM over the SDL circuits.

Possible Sources

Expired subscription
Compass concern
Obstructions in the antenna line of sight
Incorrectly matched ESN
Wiring, terminals, or connectors
Satellite radio/GPS splitter
Satellite radio/GPS antenna
ACM
APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.

NOTE: Carrying out a Master Reset of the SYNC system prior to diagnostics may resolve some satellite radio/Sirius Travel Link ™/digital radio data link concerns.

B1 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U1A00:87

Ignition ON.

Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U1A00:87 present?

Yes

GO to B15

No	For vehicles equipped with a satellite radio, GO to B2 For vehicles not equipped with a satellite radio, GO to B13

B2 CHECK FOR PROMOTIONAL CHANNEL 184

Select channel 184.

Does the satellite radio system receive channel 184 with normal sound quality?

Yes

GO to B3

GO to B9

B3 VERIFY AN ACTIVE SUBSCRIPTION

For a Sirius Radio concern, operate the audio system in satellite radio mode and observe the display.

For a Sirius Travel Link™ concern, access the "Subscription Info" selection in the SIRIUS Travel Link™ menu.

Does the display indicate the subscription has expired?

Yes

GO to B4

No	For a satellite radio concern, GO to B6 For a SIRIUS Travel Link™ concern, GO to B7

B4 CHECK THE VEHICLE SERVICE HISTORY FOR ACM (AUDIO FRONT CONTROL MODULE) REPLACEMENT

Check the vehicle service history and determine if the ACM was replaced.

Does the vehicle service history indicate the ACM was recently replaced?

Yes

GO to B5

No	The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.

B5 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE

Retrieve the satellite radio ESN by tuning to channel 0.

Contact the SIRIUS Dealer Support.

Make sure the VIN and the ESN SIRIUS has on the customer file match the VIN and the ESN retrieved from the vehicle.

Does the VIN and the ESN on the SIRIUS customer file match the ESN and VIN retrieved from the vehicle?

Yes

The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.

No	INSTRUCT the vehicle owner to contact SIRIUS to update the VIN and the ESN retrieved from the vehicle.

B6 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE

Retrieve the satellite radio ESN by tuning to channel 0.

Contact the SIRIUS Dealer Support.

Make sure the VIN and the ESN SIRIUS has on the file match the VIN and the ESN retrieved from the vehicle.

Drive the vehicle to an open location free from obstacles such as tall buildings or large trees.

Operate the audio system in satellite radio mode.

NOTE: It may take up to 30 minutes for the activation signal to be received and satellite radio functions to operate. Request for SIRIUS to send the activation signal to the vehicle 2-3 times.

Operate multiple channels with the audio system in satellite radio mode.

Does the satellite radio system receive multiple channels with normal sound quality?

Yes

The system is operating correctly. The concern may have been caused by the SIRIUS file information not matching the vehicle or a result of the activation signal needing to be resent.

GO to B11

B7 SEND THE SIRIUS ACTIVATION SIGNAL AND RECHECK SIRIUS TRAVEL LINK™ FOR CORRECT OPERATION

Refer to the SIRIUS website and input the ESN to send the activation signal to the vehicle.

Wait 15 minutes.

NOTE: If the SIRIUS Travel Link™ features have not updated, input the ESN again to re-send/refresh the signal. Operate various SIRIUS Travel Link™ features and observe their functionality.

Does the SIRIUS Travel Link™ operate correctly?

Yes

The system is operating correctly at this time.

GO to B8

B8 ALLOW THE CATEGORIES TO UPDATE AND THEN CHECK SIRIUS TRAVEL LINK™ FOR CORRECT OPERATION

NOTE: The frequency of category updates varies and depends on the category and the SIRIUS infrastructure data load.

Drive the vehicle to an outdoor location that is free from obstacles such as tall buildings and large trees.

Operate various SIRIUS Travel Link™ features and observe their functionality.

Does SIRIUS Travel Link™ operate correctly?

Yes

The system is operating correctly at this time. The concern was a result of obstructions in the antenna line of sight.

GO to B11

B9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE

Ignition OFF.

Disconnect the satellite radio antenna cable at the ACM .

Ignition ON.

Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:

Positive Lead Measurement / Action Negative Lead

Satellite cable core (component side) Ground

Is the voltage between 4.7 and 5.8 volts?

Yes

GO to B10

GO to B19

B10 CHECK FOR VOLTAGE TO THE SATELLITE ANTENNA/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA

Ignition OFF.

Connect the satellite radio antenna cable at the ACM .

Disconnect the satellite radio/GPS antenna cable from the satellite radio antenna.

Ignition ON.

Measure:

Positive Lead Measurement / Action Negative Lead

GPS/satellite radio antenna cable core at the antenna, cavity 1 Ground

Is the voltage between 4.7 and 5.8 volts?

Yes

GO to B11

No	IDENTIFY the cable with the open or short. INSTALL a new GPS/satellite radio cable for the one in question.

B11 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA SPLITTER CABLE

INSTALL a new satellite radio/GPS antenna splitter cable.
REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

For a satellite radio concern, check the operation of the satellite radio function.

For a Sirius Travel Link™ concern, check the operation of the Sirius Travel Link™.

Does the system in question operate correctly?

Yes

The repair is complete. The concern was caused by the original satellite radio/GPS antenna splitter cable.

GO to B12

B12 CHECK THE ANTENNA BASE AND MOUNTING SURFACE

Remove the GPS/satellite radio antenna.
REFER to: Roof Mounted Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).

Inspect for corrosion on the audio unit antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?

Yes

GO to B14

No	REPAIR any corrosion on the antenna unit base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

B13 VERIFY THE COMPASS OPERATES CORRECTLY

Ignition ON.

Check the operation of the compass and make sure it operates correctly.

Does the compass operate correctly?

Yes

GO to B14

No	GO to Pinpoint Test U

B14 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA

INSTALL a new roof mounted antenna.
REFER to: Roof Mounted Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).

For a satellite radio concern, check the operation of the satellite radio function.

For a Sirius Travel Link™ concern, check the operation of the Sirius Travel Link™.

Does the system in question operate correctly?

Yes

The repair is complete. The concern was caused by the original satellite radio/GPS antenna.

GO to B15

B15 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect ACM C4240A and C4240B .

Disconnect APIM C2383A .

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C2383A-27		Ground
C2383A-28		Ground
C2383A-51		Ground
C2383A-52		Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to B16

No	REPAIR the circuit in question.

B16 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C2383A-27		Ground
C2383A-28		Ground
C2383A-51		Ground
C2383A-52		Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to B17

B17 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR A SHORT TOGETHER

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-27 C2383A-28

C2383A-51 C2383A-52

Is the resistance greater than 10,000 ohms?

Yes

GO to B18

No	REPAIR the circuits.

B18 CHECK THE SDL (SIRIUS DATA LINK) CIRCUITS FOR AN OPEN

Measure:
Click to display connectors
ACM C4240A

Positive Lead Measurement / Action Negative Lead

C2383A-27 C4240A-14

C2383A-28 C4240A-25

Click to display connectors
ACM C4240B

Positive Lead Measurement / Action Negative Lead

C2383A-51 C4240B-18

C2383A-52 C4240B-29

Are the resistances less than 3 ohms?

Yes

GO to B19

No	REPAIR the circuit in question.

B19 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition ON.

Disconnect and inspect all ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B20 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the APIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C : A LOUD POPPING SOUND IS HEARD FROM THE SPEAKERS WHEN CYCLING THE IGNITION

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Possible Sources

Network communication concern
BCM concern
ACM

C1 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, carry out the BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to C2

C2 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the ACM DTC Chart in this section.

GO to C3

C3 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D : NO SOUND FROM ALL SPEAKERS

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

A short to ground or voltage in the circuitry to one of the speakers may cause multiple speakers to lose sound due to the built-in overload protection feature of the ACM. In this case, a speaker fault DTC sets.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM B150C:01	Automobile Audio Bus (A2B) Node 1: General Electrical Failure	Sets in continuous memory when the ACM detects short circuits from the A2B cable.
ACM B150C:11	Automobile Audio Bus (A2B) Node 1: Circuit Short To Ground	Sets in continuous memory when the ACM detects a short to ground from the A2B cable circuitry.
ACM B150C:12	Automobile Audio Bus (A2B) Node 1: Circuit Short To Battery	Sets in continuous memory when the ACM detects a short to voltage from the A2B cable circuitry.
ACM B150C:13	Automobile Audio Bus (A2B) Node 1: Circuit Open	Sets in continuous memory when the ACM detects an open within the A2B circuitry.
ACM B150C:55	Automobile Audio Bus (A2B) Node 1: Not Configured	Sets in continuous memory when the ACM detects a fault attempting to configure the audio DSP module as Slave 1.
ACM B150C:87	Automobile Audio Bus (A2B) Node 1: Missing Message	Sets in continuous memory when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B150C:8F	Automobile Audio Bus (A2B) Node 1: Erratic	Sets in continuous memory when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B150C:95	Automobile Audio Bus (A2B) Node 1: Incorrect Assembly	Sets in continuous memory when the ACM detects the A2B cable circuitry is reversed.
ACM B1511:01	Automobile Audio Bus (A2B) Master Node: General Electrical Failure	Sets in continuous memory when the ACM detects a fault trying to communicate to the audio DSP module.
ACM B1511:11	Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground	Sets in continuous memory when the ACM detects a short to ground from the Automobile Audio Bus (A2B).
ACM B1511:12	Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery	Sets in continuous memory when the ACM detects a short to voltage from the Automobile Audio Bus (A2B).
ACM B1511:13	Automobile Audio Bus (A2B) Master Node: Circuit Open	Sets in continuous memory when the ACM detects an open from the Automobile Audio Bus (A2B) cable.
ACM B1511:95	Automobile Audio Bus (A2B) Master Node: Incorrect Assembly	Sets in continuous memory when the ACM detects the A2B cable circuitry is reversed.
DSP B13FB:11	Audio Enable Line: Circuit Short To Ground	Sets in continuous memory when the audio DSP module does not detect the correct voltage signal from the enable circuit 5 seconds after receiving the ignition mode RUN message from the BCM.

Possible Sources

Network communication concern
Wiring, terminals, or connectors
Automobile Audio Bus (A2B) cable
Module configuration
DSP
ACM

D1 VERIFY THE ACM (AUDIO FRONT CONTROL MODULE) PASSES THE NETWORK TEST

Ignition ON.

Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?

Yes

GO to D2

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D2 VERIFY THE APIM (SYNC MODULE) PASSES THE NETWORK TEST

Review the results from the network test.

Does the APIM pass the network test?

Yes

If equipped with the 10 speaker system, GO to D4
If equipped with the 14 or the 28 speaker system, GO to D3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D3 VERIFY THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) PASSES THE NETWORK TEST

Review the results from the network test.

Does the DSP pass the network test?

Yes

GO to D4

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

D4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the APIM DTC Chart in this section.

GO to D5

D5 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

For any Automobile Audio Bus (A2B) DTC, GO to D13
For all other Diagnostic Trouble Codes (DTCs), REFER to the ACM DTC Chart in this section.

No	If equipped with the 10 speaker system, GO to D16 If equipped with the 14 or 28 speaker system, GO to D6

D6 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the DSP self-test.

Are any speaker-related Diagnostic Trouble Codes (DTCs) present?

Yes

For a 14 speaker system, GO to Pinpoint Test I
For a 28 speaker system, GO to Pinpoint Test J

GO to D7

D7 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR CORRECT VOLTAGE

Ignition OFF.

Disconnect DSP C4326C (14 speaker system).

Disconnect DSP C4452C (28 speaker system).

Ignition ON.

Turn the audio system on.

Measure:
Click to display connectors
14 Speaker System

Positive Lead Measurement / Action Negative Lead

C4326C-6 Ground

Click to display connectors
28 Speaker System

Positive Lead Measurement / Action Negative Lead

C4452C-10 Ground

Is the voltage between 3.5 and 7 volts?

Yes

GO to D12

GO to D8

D8 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect ACM C4240B .

Measure:
Click to display connectors
14 Speaker System

Positive Lead Measurement / Action Negative Lead

C4326C-6 Ground

Click to display connectors
28 Speaker System

Positive Lead Measurement / Action Negative Lead

C4452C-10 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to D9

No	REPAIR the circuit.

D9 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors
14 Speaker System

Positive Lead Measurement / Action Negative Lead

C4326C-6 Ground

Click to display connectors
28 Speaker System

Positive Lead Measurement / Action Negative Lead

C4452C-10 Ground

Is any voltage present?

Yes

REPAIR the circuit.

GO to D10

D10 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors
14 Speaker System

Positive Lead Measurement / Action Negative Lead

C4326C-6 C4240B-23

Click to display connectors
28 Speaker System

Positive Lead Measurement / Action Negative Lead

C4452C-10 C4240B-23

Is the resistance less than 3 ohms?

Yes

GO to D11

No	REPAIR the circuit.

D11 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) CONFIGURATION

Connect DSP C4326C (14 speaker system).

Connect DSP C4452C (28 speaker system).

Connect ACM C4240B .

Ignition ON.

Carry out the PMI\ programming for the ACM using as-built data.
REFER to: Module Programming (418-01 Module Configuration, General Procedures).

Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?

Yes

The system is operating correctly. The cause may have been caused by incorrect module configuration.

GO to D13

D12 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONFIGURATION

Ignition OFF.

Connect DSP C4326C (14 speaker system).

Connect DSP C4452C (28 speaker system).

Ignition ON.

Carry out the PMI programming for the DSP using as-built data.
REFER to: Module Programming (418-01 Module Configuration, General Procedures).

Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?

Yes

The system is operating correctly. The cause may have been caused by incorrect module configuration.

GO to D13

D13 CHECK THE FRONT AUTOMOBILE AUDIO BUS (A2B) CABLE

Ignition OFF.

Install a new front Automobile Audio Bus (A2B) cable.

Ignition ON.

Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?

Yes

The system is operating correctly. The cause was caused by the front Automobile Audio Bus (A2B) cable.

GO to D14

D14 CHECK THE REAR AUTOMOBILE AUDIO BUS (A2B) CABLE

Ignition OFF.

Install a new rear Automobile Audio Bus (A2B) cable.

Ignition ON.

Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?

Yes

The system is operating correctly. The cause was caused by the rear Automobile Audio Bus (A2B) cable.

GO to D15

D15 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to D16

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D16 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB , SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM.
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST E : POOR SOUND QUALITY OR DISTORTED SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS)

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Audio signals are sent to the speakers in the form of AC voltage, resulting in clear audio output.

Possible Sources

Loose component fasteners
Loose door handle, lock or other trim panel components and fasteners
Loose items in storage areas
Loose speaker grilles
Loose wire harnesses or wire harness fasteners
Speaker
Trim panel
Water shield bonding and placement

Visual Inspection and Pre-checks

Any map pockets and storage compartments (including cup holders) for contents that can rattle (if equipped)
Door pull cup attachments for correct fit (if equipped)
Door switch bezels for correct fit (if equipped)
Speaker grilles for correct fit
Trim panels for correct fit

E1 ISOLATE THE ZONE

Download all the diagnostic sound tracks to a suitable USB flash drive and connect it to the media hub.
REFER to: Speaker Audio Test (415-00 Information and Entertainment System - General Information, General Procedures).

Operate the audio system in USB mode using the downloaded audio files.

Using the audio system fade and balance settings, adjust the audio sound to each of the zones and use the 6 diagnostic sound tracks to isolate the poor sound quality.

Locate and apply pressure to the trim panel(s) around the poor sound quality area in question.

Does applying pressure to a trim panel reduce or eliminate the noise?

Yes

REPAIR or REPLACE the trim panel as needed.

GO to E2

E2 REMOVE AND INSPECT BEHIND/UNDERNEATH THE SUSPECT TRIM PANEL

Remove the trim panel to access the suspect speaker.

Operate the audio system in USB mode using the downloaded audio files.

Validate where the poor sound quality area is located.

Check:
- Trim panel for loose components (speaker grille for example) around the speaker area.
- Trim panel joining components for missing or broken pieces.
- Door latch mechanical parts for correct attachment.
- Wire harnesses for correct routing and attachment.
- Water shield for correct placement (speaker air path not blocked).
- Water shield for correct bonding to sheet metal.
- Storage areas for loose items.
- All safety belt retractors.
- All speaker bracket and related fasteners. Make sure they are secure and tightened to specified torque.

Is the source of the noise located?

Yes

REPAIR or REPLACE any loose or broken component or fastener as necessary.

GO to E3

E3 CHECK THE SUSPECT SPEAKER FOR WATER INTRUSION

Inspect for watermarks.

Check the following speaker components:
- Cone
- Magnet
- Basket

Are any watermarks present on the speaker?

Yes

VERIFY the water shield is in the correct location, REPAIR or REPLACE any trim, door or speaker seal as required. DRY the speaker in question. TEST the system for normal operation.

GO to E4

E4 ISOLATE THE SUSPECT SPEAKER TO VERIFY NOISE

Remove the suspect speaker from its location and leave the speaker connected to the harness.

Hold the speaker away from any trim panel and make sure the speaker is isolated from contact.

Operate the audio system in USB mode using the downloaded audio files.

Is the noise still present in the suspect speaker?

Yes

INSTALL a new speaker for the one in question.

No	LOCATE the source of the noise and REPAIR as necessary.

PINPOINT TEST F : THE SPEED COMPENSATED VOLUME DOES NOT OPERATE CORRECTLY

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

Possible Sources

Speed compensated volume setting
Speed signal concern
Network communication concern
ACM

F1 CHECK THE SPEEDOMETER OPERATION

Verify speedometer operates correctly.

Does the speedometer operate correctly?

Yes

GO to F2

No	REFER to: Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

F2 CHECK THE SPEED COMPENSATED VOLUME SETTING

NOTE: Refer to the Owner Literature to access the speed compensated volume settings.

Turn the speed compensated volume off.

Operate the audio system in AM/ FM mode.

Drive the vehicle at various speeds and observe the speaker volume.

Set the speed compensated volume to maximum compensation.

Operate the audio system in AM/ FM mode.

Drive the vehicle at various speeds and observe the speaker volume.

Does the volume remain constant with the speed compensated volume turned off, and increase and decrease with vehicle speed with the speed compensated volume set to maximum?

Yes

The system is operating correctly at this time. INFORM the vehicle owner in the correct usage of the speed compensated volume feature.

GO to F3

F3 CHECK FOR COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the ACM DTC Chart in this section.

No	For vehicles equipped with the 10 speaker system, GO to F5 For vehicles equipped with the 14 or 28 speaker system, GO to F4

F4 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F5 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G : ONE OR MORE SPEAKER IS INOPERATIVE - ACM (AUDIO FRONT CONTROL MODULE) CONTROLLED SPEAKERS - 10 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM B128C:13	Speaker #15: Circuit Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open from the instrument panel center speaker circuits.
ACM B1A01:01	Speaker #1: General Electrical Failure	Sets in continuous memory and during the on-demand self-test when the ACM detects a failure from the left front door woofer and tweeter speaker circuits.
ACM B1A01:11	Speaker #1: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left front door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:12	Speaker #1: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left front door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A01:13	Speaker #1: Circuit Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open from the left front door woofer and tweeter speaker circuits.
ACM B1A02:01	Speaker #2: General Electrical Failure	Sets in continuous memory and during the on-demand self-test when the ACM detects a failure from the right front door woofer and tweeter speaker circuits.
ACM B1A02:11	Speaker #2: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right front door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:12	Speaker #2: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right front door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A02:13	Speaker #2: Circuit Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open from the right front door woofer and tweeter speaker circuits.
ACM B1A03:01	Speaker #3: General Electrical Failure	Sets in continuous memory and during the on-demand self-test when the ACM detects a failure from the right rear door woofer and tweeter speaker circuits.
ACM B1A03:11	Speaker #3: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the right rear door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:12	Speaker #3: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right rear door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A03:13	Speaker #3: Circuit Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open from the right rear door woofer and tweeter speaker circuits.
ACM B1A04:01	Speaker #4: General Electrical Failure	Sets in continuous memory and during the on-demand self-test when the ACM detects a failure from the left rear door woofer and tweeter speaker circuits.
ACM B1A04:11	Speaker #4: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the left rear door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:12	Speaker #4: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left rear door woofer and tweeter speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A04:13	Speaker #4: Circuit Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open from the left rear door woofer and tweeter speaker circuits.
ACM B1A06:01	Speaker #6: General Electrical Failure	Sets in continuous memory and during the on-demand self-test when the ACM detects a failure from the instrument panel center speaker circuits.
ACM B1A06:11	Speaker #6: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to ground from the instrument panel center speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A06:12	Speaker #6: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the instrument panel center speaker circuits. The speaker output is disabled when this DTC is set.
ACM B1A06:13	Speaker #6: Circuit Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open from the instrument panel center speaker circuits.
ACM B1A07:13	Speaker #7: Circuit Open	Sets in continuous memory when the ACM detects an open from the left front door woofer and tweeter speaker circuits.
ACM B1A08:13	Speaker #8: Circuit Open	Sets in continuous memory when the ACM detects an open from the right front door woofer and tweeter speaker circuits.
ACM B1A09:13	Speaker #9: Circuit Open	Sets in continuous memory when the ACM detects an open from the right rear door woofer and tweeter speaker circuits.
ACM B1A10:13	Speaker #10: Circuit Open	Sets in continuous memory when the ACM detects an open from the left rear door woofer and tweeter speaker circuits.

Possible Sources

Wiring, terminals, or connectors
Speaker
ACM

NOTE: The door woofer speaker and corresponding door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.

G1 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the suspect speaker.

Disconnect ACM C4240A .

For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2366-1 Ground

C2366-2 Ground

Click to display connectors
Left Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 Ground

C513-3 Ground

Click to display connectors
Right Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 Ground

C613-3 Ground

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 Ground

C523-4 Ground

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 Ground

C612-4 Ground

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 Ground

C730-3 Ground

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 Ground

C830-3 Ground

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 Ground

C702-4 Ground

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 Ground

C802-4 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to G2

No	REPAIR the circuit in question.

G2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE

Ignition ON.

For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2366-1 Ground

C2366-2 Ground

Click to display connectors
Left Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 Ground

C513-3 Ground

Click to display connectors
Right Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 Ground

C613-3 Ground

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 Ground

C523-4 Ground

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 Ground

C612-4 Ground

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 Ground

C730-3 Ground

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 Ground

C830-3 Ground

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 Ground

C702-4 Ground

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 Ground

C802-4 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to G3

G3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER

Ignition OFF.

NOTE: For a door woofer or tweeter speaker concern, make sure the corresponding door tweeter or woofer speaker is disconnected. For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2366-1 C2366-2

Click to display connectors
Left Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 C513-3

Click to display connectors
Right Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 C613-3

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C523-4

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C612-4

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 C730-3

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 C830-3

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C702-4

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C802-4

Are the resistances greater than 10,000 ohms?

Yes

GO to G4

No	REPAIR the circuits.

G4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN

For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2366-1 C4240A-13

C2366-2 C4240A-24

Click to display connectors
Left Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 C4240A-8

C513-3 C4240A-7

Click to display connectors
Right Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 C4240A-3

C613-3 C4240A-2

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C4240A-8

C523-4 C4240A-7

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C4240A-3

C612-4 C4240A-2

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 C4240A-6

C730-3 C4240A-5

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 C4240A-10

C830-3 C4240A-9

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C4240A-6

C702-4 C4240A-5

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C4240A-10

C802-4 C4240A-9

Are the resistances less than 3 ohms?

Yes

GO to G5

No	REPAIR the circuit in question.

G5 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER

Connect ACM C4240A .

Ignition ON.

Operate the audio system in AM/ FM mode.

For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2366-1 C2366-2

Click to display connectors
Left Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 C513-3

Click to display connectors
Right Front Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 C613-3

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C523-4

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C612-4

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 C730-3

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 C830-3

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C702-4

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C802-4

Is a fluctuating AC voltage present?

Yes

INSTALL a new speaker for the one in question.

GO to G6

G6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H : THE SUBWOOFER SPEAKER IS INOPERATIVE

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

Possible Sources

Wiring, terminals, or connectors
Subwoofer speaker
Subwoofer amplifier
BJB ( BCMC)
ACM

Visual Inspection and Pre-checks

Check the BJB fuse 8 (20A) and make sure it is OK.

H1 CHECK FOR VOLTAGE TO THE SUBWOOFER AMPLIFIER

Ignition OFF.

Disconnect Subwoofer Amplifier C4601 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-14 Ground

Is the voltage greater than 11 volts?

Yes

GO to H3

No	VERIFY the BJB fuse 8 (20A) is OK. If OK, GO to H2 If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

H2 CHECK THE SUBWOOFER AMPLIFIER VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Disconnect BJB C1035B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-14 C1035B-54

Is the resistance less than 3 ohms?

Yes

GO to H13

No	REPAIR the circuit.

H3 CHECK THE SUBWOOFER AMPLIFIER GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect Subwoofer Amplifier C4601 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-14 C4601-11

Is the voltage greater than 11 volts?

Yes

GO to H4

No	REPAIR the circuit.

H4 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR CORRECT VOLTAGE

Ignition ON.

Turn the audio system on.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-1 Ground

Is the voltage between 3.5 and 7 volts?

Yes

GO to H8

GO to H5

H5 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect ACM C4240B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-1 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to H6

No	REPAIR the circuit.

H6 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-1 Ground

Is any voltage present?

Yes

REPAIR the circuit.

GO to H7

H7 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-1 C4240B-23

Is the resistance less than 3 ohms?

Yes

GO to H14

No	REPAIR the circuit.

H8 CHECK THE SUBWOOFER AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

Ignition OFF.

Disconnect ACM C4240B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-5 Ground

C4601-6 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to H9

No	REPAIR the circuit in question.

H9 CHECK THE SUBWOOFER AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-5 Ground

C4601-6 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to H10

H10 CHECK THE SUBWOOFER AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-5 C4601-6

Is the resistance greater than 10,000 ohms?

Yes

GO to H11

No	REPAIR the circuits in question.

H11 CHECK THE SUBWOOFER AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-5 C4240B-11

C4601-6 C4240B-22

Are the resistances less than 3 ohms?

Yes

GO to H12

No	REPAIR the circuit in question.

H12 CHECK THE SUBWOOFER AUDIO SIGNAL TO THE SUBWOOFER AMPLIFIER

Connect ACM C4240B .

Ignition ON.

Operate the audio system in AM/ FM mode.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4601-5 C4601-6

Is a fluctuating AC voltage present?

Yes

INSTALL a new subwoofer amplifier and speaker.
REFER to: Subwoofer Amplifier (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, INSTALL a new subwoofer speaker.
REFER to: Subwoofer Speaker (415-00 Information and Entertainment System - General Information, Removal and Installation).

GO to H14

H13 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION

Ignition OFF.

Disconnect and inspect all the BCMC connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the BCMC connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCMC.
REFER to: Body Control Module C (BCMC) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

H14 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST I : ONE OR MORE SPEAKER IS INOPERATIVE - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONTROLLED SPEAKERS - 14 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
DSP B1A01:01	Speaker #1: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the subwoofer speaker circuits are shorted together.
DSP B1A01:11	Speaker #1: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the subwoofer speaker circuits.
DSP B1A01:12	Speaker #1: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the subwoofer speaker circuits.
DSP B1A01:13	Speaker #1: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the subwoofer speaker circuits.
DSP B1A02:01	Speaker #2: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front door midrange speaker circuits are shorted together.
DSP B1A02:11	Speaker #2: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front door midrange speaker circuits.
DSP B1A02:12	Speaker #2: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front door midrange speaker circuits.
DSP B1A02:13	Speaker #2: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front door midrange speaker circuits.
DSP B1A03:01	Speaker #3: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front door midrange speaker circuits are shorted together.
DSP B1A03:11	Speaker #3: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front door midrange speaker circuits.
DSP B1A03:12	Speaker #3: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front door midrange speaker circuits.
DSP B1A03:13	Speaker #3: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front door midrange speaker circuits.
DSP B1A04:01	Speaker #4: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the instrument panel center midrange speaker circuits are shorted together.
DSP B1A04:11	Speaker #4: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the instrument panel center midrange speaker circuits.
DSP B1A04:12	Speaker #4: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the instrument panel center midrange speaker circuits.
DSP B1A04:13	Speaker #4: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the instrument panel center midrange speaker circuits.
DSP B1A05:01	Speaker #5: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front door woofer speaker circuits are shorted together.
DSP B1A05:11	Speaker #5: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front door woofer speaker circuits.
DSP B1A05:12	Speaker #5: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front door woofer speaker circuits.
DSP B1A05:13	Speaker #5: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front door woofer speaker circuits.
DSP B1A06:01	Speaker #6: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front door tweeter speaker circuits are shorted together.
DSP B1A06:11	Speaker #6: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front door tweeter speaker circuits.
DSP B1A06:12	Speaker #6: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front door tweeter speaker circuits.
DSP B1A06:13	Speaker #6: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front door tweeter speaker circuits.
DSP B1A07:01	Speaker #7: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front door tweeter speaker circuits are shorted together.
DSP B1A07:11	Speaker #7: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front door tweeter speaker circuits.
DSP B1A07:12	Speaker #7: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front door tweeter speaker circuits.
DSP B1A07:13	Speaker #7: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front door tweeter speaker circuits.
DSP B1A08:01	Speaker #8: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front door woofer speaker circuits are shorted together.
DSP B1A08:11	Speaker #8: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front door woofer speaker circuits.
DSP B1A08:12	Speaker #8: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front door woofer speaker circuits.
DSP B1A08:13	Speaker #8: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front door woofer speaker circuits.
DSP B1A09:01	Speaker #9: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left rear door woofer and left rear door tweeter speaker circuits are shorted together.
DSP B1A09:11	Speaker #9: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left rear door woofer and left rear door tweeter speaker circuits.
DSP B1A09:12	Speaker #9: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left rear door woofer and left rear door tweeter speaker circuits.
DSP B1A09:13	Speaker #9: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right left rear door woofer and left rear door tweeter speaker circuits.
DSP B1A10:01	Speaker #10: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right rear door woofer and right rear door tweeter speaker circuits are shorted together.
DSP B1A10:11	Speaker #10: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right rear door woofer and right rear door tweeter speaker circuits.
DSP B1A10:12	Speaker #10: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right rear door woofer and right rear door tweeter speaker circuits.
DSP B1A10:13	Speaker #10: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right rear door woofer and right rear door tweeter speaker circuits.
DSP B1A11:01	Speaker #11: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the instrument panel center tweeter speaker circuits are shorted together.
DSP B1A11:11	Speaker #11: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the instrument panel center tweeter speaker circuits.
DSP B1A11:12	Speaker #11: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the instrument panel center tweeter speaker circuits.
DSP B1A11:13	Speaker #11: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the instrument panel center tweeter speaker circuits.
DSP B1A12:01	Speaker #12: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the subwoofer speaker circuits are shorted together.
DSP B1A12:11	Speaker #12: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the subwoofer speaker circuits.
DSP B1A12:12	Speaker #12: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the subwoofer speaker circuits.
DSP B1A12:13	Speaker #12: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the subwoofer speaker circuits.

Possible Sources

Wiring, terminals, or connectors
Speaker
DSP

NOTE: The rear door woofer speaker and corresponding rear door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the rear door tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.

I1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the ACM DTC Chart in this section.

GO to I2

I2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

NOTE: For a rear door woofer speaker and tweeter speaker concern, make sure the both speakers are disconnected.

Ignition OFF.

Disconnect the suspect speaker.

Disconnect DSP C4326A and C4326B .

For the suspect speaker, measure:
Click to display connectors

Instrument Panel Center Speaker

Positive Lead	Measurement / Action	Negative Lead
C2359-1		Ground
C2359-2		Ground
C2359-3		Ground
C2359-4		Ground

Click to display connectors

Left Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C513-1		Ground
C513-3		Ground

Click to display connectors

Right Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C613-1		Ground
C613-3		Ground

Click to display connectors

Left Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C5002-1		Ground
C5002-3		Ground

Click to display connectors

Right Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C6002-1		Ground
C6002-3		Ground

Click to display connectors

Left Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C523-1		Ground
C523-4		Ground

Click to display connectors

Right Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C612-1		Ground
C612-4		Ground

Click to display connectors

Left Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C730-1		Ground
C730-3		Ground

Click to display connectors

Right Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C830-1		Ground
C830-3		Ground

Click to display connectors

Left Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C702-1		Ground
C702-4		Ground

Click to display connectors

Right Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C802-1		Ground
C802-4		Ground

Click to display connectors

Subwoofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C4436-1		Ground
C4436-2		Ground
C4436-3		Ground
C4436-4		Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to I3

No	REPAIR the circuit in question.

I3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE

Ignition ON.

For the suspect speaker, measure:
Click to display connectors

Instrument Panel Center Speaker

Positive Lead	Measurement / Action	Negative Lead
C2359-1		Ground
C2359-2		Ground
C2359-3		Ground
C2359-4		Ground

Click to display connectors

Left Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C513-1		Ground
C513-3		Ground

Click to display connectors

Right Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C613-1		Ground
C613-3		Ground

Click to display connectors

Left Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C5002-1		Ground
C5002-3		Ground

Click to display connectors

Right Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C6002-1		Ground
C6002-3		Ground

Click to display connectors

Left Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C523-1		Ground
C523-4		Ground

Click to display connectors

Right Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C612-1		Ground
C612-4		Ground

Click to display connectors

Left Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C730-1		Ground
C730-3		Ground

Click to display connectors

Right Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C830-1		Ground
C830-3		Ground

Click to display connectors

Left Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C702-1		Ground
C702-4		Ground

Click to display connectors

Right Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C802-1		Ground
C802-4		Ground

Click to display connectors

Subwoofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C4436-1		Ground
C4436-2		Ground
C4436-3		Ground
C4436-4		Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to I4

I4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER

Ignition OFF.

For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2359-1 C2359-2

C2359-3 C2359-4

Click to display connectors
Left Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 C513-3

Click to display connectors
Right Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 C613-3

Click to display connectors
Left Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C5002-1 C5002-3

Click to display connectors
Right Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C6002-1 C6002-3

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C523-4

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C612-4

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 C730-3

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 C830-3

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C702-4

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C802-4

Click to display connectors
Subwoofer Speaker

Positive Lead Measurement / Action Negative Lead

C4436-1 C4436-2

C4436-3 C4436-4

Are the resistances greater than 10,000 ohms?

Yes

GO to I5

No	REPAIR the circuits in question.

I5 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is disconnected. For the suspect speaker, measure:
Click to display connectors

Instrument Panel Center Speaker

Positive Lead	Measurement / Action	Negative Lead
C2359-1		C4326B-19
C2359-2		C4326B-9
C2359-3		C4326B-11
C2359-4		C4326B-1

Click to display connectors

Left Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C513-1		C4326B-14
C513-3		C4326B-4

Click to display connectors

Right Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C613-1		C4326B-15
C613-3		C4326B-5

Click to display connectors

Left Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C5002-1		C4326A-19
C5002-3		C4326A-9

Click to display connectors

Right Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C6002-1		C4326B-12
C6002-3		C4326B-2

Click to display connectors

Left Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C523-1		C4326B-13
C523-4		C4326B-3

Click to display connectors

Right Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C612-1		C4326B-16
C612-4		C4326B-6

Click to display connectors

Left Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C730-1		C702-2
C730-3		C702-3

Click to display connectors

Right Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C830-1		C802-2
C830-3		C802-3

Click to display connectors

Left Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C702-1		C4326B-17
C702-4		C4326B-7

Click to display connectors

Right Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C802-1		C4326B-18
C802-4		C4326B-8

Click to display connectors

Subwoofer Speaker Channel 1

Positive Lead	Measurement / Action	Negative Lead
C4436-1		C4326A-20
C4436-2		C4326A-10

Click to display connectors

Subwoofer Speaker Channel 2

Positive Lead	Measurement / Action	Negative Lead
C4436-3		C4326B-20
C4436-4		C4326B-10

Are the resistances less than 3 ohms?

Yes

GO to I6

No	REPAIR the circuit in question.

I6 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER

Connect DSP C4326A and C4326B .

Ignition ON.

Operate the audio system in AM/ FM mode.

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is connected. For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2359-1 C2359-2

C2359-3 C2359-4

Click to display connectors
Left Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C513-1 C513-3

Click to display connectors
Right Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C613-1 C613-3

Click to display connectors
Left Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C5002-1 C5002-3

Click to display connectors
Right Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C6002-1 C6002-3

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C523-4

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C612-4

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C730-1 C730-3

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C830-1 C830-3

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C702-4

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C802-4

Click to display connectors
Subwoofer Speaker

Positive Lead Measurement / Action Negative Lead

C4436-1 C4436-2

C4436-3 C4436-4

Is a fluctuating AC voltage present?

Yes

INSTALL a new speaker for the one in question.

GO to I7

I7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST J : ONE OR MORE SPEAKER IS INOPERATIVE - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONTROLLED SPEAKERS - 28 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
DSP B128A:01	Speaker #13: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left rear door midrange speaker circuits are shorted together.
DSP B128A:11	Speaker #13: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left rear door midrange speaker circuits.
DSP B128A:12	Speaker #13: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left rear door midrange speaker circuits.
DSP B128A:13	Speaker #13: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left rear door midrange speaker circuits.
DSP B128B:01	Speaker #14: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right rear overhead speaker circuits are shorted together.
DSP B128B:11	Speaker #14: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right rear overhead speaker circuits.
DSP B128B:12	Speaker #14: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right rear overhead speaker circuits.
DSP B128B:13	Speaker #14: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right rear overhead speaker circuits.
DSP B128C:01	Speaker #15: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front door tweeter speaker circuits are shorted together.
DSP B128C:11	Speaker #15: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front door tweeter speaker circuits.
DSP B128C:12	Speaker #15: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front door tweeter speaker circuits.
DSP B128C:13	Speaker #15: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front door tweeter speaker circuits.
DSP B128D:01	Speaker #16: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front door tweeter speaker circuits are shorted together.
DSP B128D:11	Speaker #16: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front door tweeter speaker circuits.
DSP B128D:12	Speaker #16: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front door tweeter speaker circuits.
DSP B128D:13	Speaker #16: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front door tweeter speaker circuits.
DSP B128E:01	Speaker #17: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left rear overhead speaker circuits are shorted together.
DSP B128E:11	Speaker #17: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left rear overhead speaker circuits.
DSP B128E:12	Speaker #17: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left rear overhead speaker circuits.
DSP B128E:13	Speaker #17: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left rear overhead speaker circuits.
DSP B128F:01	Speaker #18: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front overhead speaker circuits are shorted together.
DSP B128F:11	Speaker #18: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front overhead speaker circuits.
DSP B128F:12	Speaker #18: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front overhead speaker circuits.
DSP B128F:13	Speaker #18: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front overhead speaker circuits.
DSP B1290:01	Speaker #19: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front overhead speaker circuits are shorted together.
DSP B1290:11	Speaker #19: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front overhead speaker circuits.
DSP B1290:12	Speaker #19: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front overhead speaker circuits.
DSP B1290:13	Speaker #19: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front overhead speaker circuits.
DSP B1291:01	Speaker #20: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the instrument panel center tweeter speaker circuits are shorted together.
DSP B1291:11	Speaker #20: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the instrument panel center tweeter speaker circuits.
DSP B1291:12	Speaker #20: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the instrument panel center tweeter speaker circuits.
DSP B1291:13	Speaker #20: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the instrument panel center tweeter speaker circuits.
DSP B1A01:01	Speaker #1: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the subwoofer channel 1 speaker circuits are shorted together.
DSP B1A01:11	Speaker #1: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the subwoofer channel 1 speaker circuits.
DSP B1A01:12	Speaker #1: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the subwoofer channel 1 speaker circuits.
DSP B1A01:13	Speaker #1: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the subwoofer channel 1 speaker circuits.
DSP B1A02:01	Speaker #2: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left D-pillar speaker circuits are shorted together.
DSP B1A02:11	Speaker #2: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left D-pillar speaker circuits.
DSP B1A02:12	Speaker #2: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left D-pillar speaker circuits.
DSP B1A02:13	Speaker #2: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left D-pillar speaker circuits.
DSP B1A03:01	Speaker #3: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front door woofer speaker circuits are shorted together.
DSP B1A03:11	Speaker #3: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front door woofer speaker circuits.
DSP B1A03:12	Speaker #3: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front door woofer speaker circuits.
DSP B1A03:13	Speaker #3: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front door woofer speaker circuits.
DSP B1A04:01	Speaker #4: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front door midrange speaker circuits are shorted together.
DSP B1A04:11	Speaker #4: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front door midrange speaker circuits.
DSP B1A04:12	Speaker #4: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front door midrange speaker circuits.
DSP B1A04:13	Speaker #4: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front door midrange speaker circuits.
DSP B1A05:01	Speaker #5: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left front door woofer speaker circuits are shorted together.
DSP B1A05:11	Speaker #5: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left front door woofer speaker circuits.
DSP B1A05:12	Speaker #5: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left front door woofer speaker circuits.
DSP B1A05:13	Speaker #5: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left front door woofer speaker circuits.
DSP B1A06:01	Speaker #6: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the subwoofer channel 2 speaker circuits are shorted together.
DSP B1A06:11	Speaker #6: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the subwoofer channel 2 speaker circuits.
DSP B1A06:12	Speaker #6: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the subwoofer channel 2 speaker circuits.
DSP B1A06:13	Speaker #6: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the subwoofer channel 2 speaker circuits.
DSP B1A07:01	Speaker #7: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right front door midrange speaker circuits are shorted together.
DSP B1A07:11	Speaker #7: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right front door midrange speaker circuits.
DSP B1A07:12	Speaker #7: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right front door midrange speaker circuits.
DSP B1A07:13	Speaker #7: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right front door midrange speaker circuits.
DSP B1A08:01	Speaker #8: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the instrument panel center midrange speaker circuits are shorted together.
DSP B1A08:11	Speaker #8: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the instrument panel center midrange speaker circuits.
DSP B1A08:12	Speaker #8: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the instrument panel center midrange speaker circuits.
DSP B1A08:13	Speaker #8: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the instrument panel center midrange speaker circuits.
DSP B1A09:01	Speaker #9: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the left rear door woofer and left rear door tweeter speaker circuits are shorted together.
DSP B1A09:11	Speaker #9: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the left rear door woofer and left rear door tweeter speaker circuits.
DSP B1A09:12	Speaker #9: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the left rear door woofer and left rear door tweeter speaker circuits.
DSP B1A09:13	Speaker #9: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the left rear door woofer and left rear door tweeter speaker circuits.
DSP B1A10:01	Speaker #10: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right D-pillar speaker circuits are shorted together.
DSP B1A10:11	Speaker #10: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right D-pillar speaker circuits.
DSP B1A10:12	Speaker #10: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right D-pillar speaker circuits.
DSP B1A10:13	Speaker #10: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right D-pillar speaker circuits.
DSP B1A11:01	Speaker #11: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right rear door midrange speaker circuits are shorted together.
DSP B1A11:11	Speaker #11: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right rear door midrange speaker circuits.
DSP B1A11:12	Speaker #11: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right rear door midrange speaker circuits.
DSP B1A11:13	Speaker #11: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right rear door midrange speaker circuits.
DSP B1A12:01	Speaker #12: General Electrical Failure	Sets during the on-demand self-test when the DSP detects the right rear door woofer and right rear door tweeter speaker circuits are shorted together.
DSP B1A12:11	Speaker #12: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to ground from the right rear door woofer and right rear door tweeter speaker circuits.
DSP B1A12:12	Speaker #12: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the DSP detects a short to voltage from the right rear door woofer and right rear door tweeter speaker circuits.
DSP B1A12:13	Speaker #12: Circuit Open	Sets during the on-demand self-test when the DSP detects an open from the right rear door woofer and right rear door tweeter speaker circuits.

Possible Sources

Wiring, terminals, or connectors
Speaker
DSP
ACM

J1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the ACM DTC Chart in this section.

GO to J2

J2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

NOTE: For a rear door woofer speaker and tweeter speaker concern, make sure the both speakers are disconnected.

Ignition OFF.

Disconnect the suspect speaker.

Disconnect DSP C4452A and C4452B .

For the suspect speaker, measure:
Click to display connectors

Instrument Panel Center Speaker

Positive Lead	Measurement / Action	Negative Lead
C2359-1		Ground
C2359-2		Ground
C2359-3		Ground
C2359-4		Ground

Click to display connectors

Left Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C569-1		Ground
C569-2		Ground

Click to display connectors

Right Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C645-1		Ground
C645-2		Ground

Click to display connectors

Left Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C5002-1		Ground
C5002-3		Ground

Click to display connectors

Right Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C6002-1		Ground
C6002-3		Ground

Click to display connectors

Left Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C523-1		Ground
C523-4		Ground

Click to display connectors

Right Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C612-1		Ground
C612-4		Ground

Click to display connectors

Left Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C744-1		Ground
C744-2		Ground

Click to display connectors

Right Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C844-1		Ground
C844-2		Ground

Click to display connectors

Left Rear Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C751-1		Ground
C751-3		Ground

Click to display connectors

Right Rear Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C851-1		Ground
C851-3		Ground

Click to display connectors

Left Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C702-1		Ground
C702-4		Ground

Click to display connectors

Right Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C802-1		Ground
C802-4		Ground

Click to display connectors

Left D-Pillar Speaker

Positive Lead	Measurement / Action	Negative Lead
C485-1		Ground
C485-2		Ground

Click to display connectors

Right D-Pillar Speaker

Positive Lead	Measurement / Action	Negative Lead
C484-1		Ground
C484-2		Ground

Click to display connectors

Left Front Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9063-1		Ground
C9063-3		Ground

Click to display connectors

Right Front Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9064-1		Ground
C9064-3		Ground

Click to display connectors

Left Rear Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9065-1		Ground
C9065-3		Ground

Click to display connectors

Right Rear Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9066-1		Ground
C9066-3		Ground

Click to display connectors

Subwoofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C4436-1		Ground
C4436-2		Ground
C4436-3		Ground
C4436-4		Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to J3

No	REPAIR the circuit in question.

J3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE

Ignition ON.

For the suspect speaker, measure:
Click to display connectors

Left Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C569-1		Ground
C569-2		Ground

Click to display connectors

Right Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C645-1		Ground
C645-2		Ground

Click to display connectors

Left Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C5002-1		Ground
C5002-3		Ground

Click to display connectors

Right Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C6002-1		Ground
C6002-3		Ground

Click to display connectors

Left Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C523-1		Ground
C523-4		Ground

Click to display connectors

Right Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C612-1		Ground
C612-4		Ground

Click to display connectors

Left Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C744-1		Ground
C744-2		Ground

Click to display connectors

Right Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C844-1		Ground
C844-2		Ground

Click to display connectors

Left Rear Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C751-1		Ground
C751-3		Ground

Click to display connectors

Right Rear Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C851-1		Ground
C851-3		Ground

Click to display connectors

Left Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C702-1		Ground
C702-4		Ground

Click to display connectors

Right Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C802-1		Ground
C802-4		Ground

Click to display connectors

Left D-Pillar Speaker

Positive Lead	Measurement / Action	Negative Lead
C485-1		Ground
C485-2		Ground

Click to display connectors

Right D-Pillar Speaker

Positive Lead	Measurement / Action	Negative Lead
C484-1		Ground
C484-2		Ground

Click to display connectors

Left Front Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9063-1		Ground
C9063-3		Ground

Click to display connectors

Right Front Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9064-1		Ground
C9064-3		Ground

Click to display connectors

Left Rear Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9065-1		Ground
C9065-3		Ground

Click to display connectors

Right Rear Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9066-1		Ground
C9066-3		Ground

Click to display connectors

Subwoofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C4436-1		Ground
C4436-2		Ground
C4436-3		Ground
C4436-4		Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to J4

J4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER

Ignition OFF.

For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2359-1 C2359-2

C2359-3 C2359-4

Click to display connectors
Left Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C569-1 C569-2

Click to display connectors
Right Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C645-1 C645-2

Click to display connectors
Left Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C5002-1 C5002-3

Click to display connectors
Right Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C6002-1 C6002-3

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C523-4

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C612-4

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C744-1 C744-2

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C844-1 C844-2

Click to display connectors
Left Rear Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C751-1 C751-3

Click to display connectors
Right Rear Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C851-1 C851-3

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C702-4

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C802-4

Click to display connectors
Left D-Pillar Speaker

Positive Lead Measurement / Action Negative Lead

C485-1 C485-2

Click to display connectors
Right D-Pillar Speaker

Positive Lead Measurement / Action Negative Lead

C484-1 C484-2

Click to display connectors
Left Front Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9063-1 C9063-3

Click to display connectors
Right Front Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9064-1 C9064-3

Click to display connectors
Left Rear Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9065-1 C9065-3

Click to display connectors
Right Rear Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9066-1 C9066-3

Click to display connectors
Subwoofer Speaker

Positive Lead Measurement / Action Negative Lead

C4436-1 C4436-2

C4436-3 C4436-4

Are the resistances greater than 10,000 ohms?

Yes

GO to J5

No	REPAIR the circuits in question.

J5 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is disconnected.

For the suspect speaker, measure:
Click to display connectors

Instrument Panel Center Speaker - Tweeter

Positive Lead	Measurement / Action	Negative Lead
C2359-1		C4452B-20
C2359-2		C4452B-10

Click to display connectors

Instrument Panel Center Speaker - Midrange

Positive Lead	Measurement / Action	Negative Lead
C2359-3		C4452A-19
C2359-4		C4452A-9

Click to display connectors

Left Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C569-1		C4452B-15
C569-2		C4452B-5

Click to display connectors

Right Front Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C645-1		C4452B-16
C645-2		C4452B-6

Click to display connectors

Left Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C5002-1		C4452A-12
C5002-3		C4452A-2

Click to display connectors

Right Front Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C6002-1		C4452A-16
C6002-3		C4452A-6

Click to display connectors

Left Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C523-1		C4452A-11
C523-4		C4452A-1

Click to display connectors

Right Front Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C612-1		C4452A-13
C612-4		C4452A-3

Click to display connectors

Left Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C744-1		C702-2
C744-2		C702-3

Click to display connectors

Right Rear Door Tweeter Speaker

Positive Lead	Measurement / Action	Negative Lead
C844-1		C802-2
C844-2		C802-3

Click to display connectors

Left Rear Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C751-1		C4452B-13
C751-3		C4452B-3

Click to display connectors

Right Rear Door Midrange Speaker

Positive Lead	Measurement / Action	Negative Lead
C851-1		C4452B-11
C851-3		C4452B-1

Click to display connectors

Left Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C702-1		C4452A-18
C702-4		C4452A-8

Click to display connectors

Right Rear Door Woofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C802-1		C4452A-12
C802-4		C4452A-2

Click to display connectors

Left D-Pillar Speaker

Positive Lead	Measurement / Action	Negative Lead
C485-1		C4452A-14
C485-2		C4452A-4
C485-3		C4452A-4
C485-4		C4452A-14

Click to display connectors

Right D-Pillar Speaker

Positive Lead	Measurement / Action	Negative Lead
C484-1		C4452A-20
C484-2		C4452A-10
C484-3		C4452A-10
C484-4		C4452A-20

Click to display connectors

Left Front Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9063-1		C4452B-19
C9063-3		C4452B-9

Click to display connectors

Right Front Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9064-1		C4452B-18
C9064-3		C4452B-8

Click to display connectors

Left Rear Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9065-1		C4452B-17
C9065-3		C4452B-7

Click to display connectors

Right Rear Overhead Speaker

Positive Lead	Measurement / Action	Negative Lead
C9066-1		C4452B-14
C9066-3		C4452B-4

Click to display connectors

Subwoofer Speaker

Positive Lead	Measurement / Action	Negative Lead
C4436-1		C4452A-15
C4436-2		C4452A-5
C4436-3		C4452A-17
C4436-4		C4452A-7

Are the resistances less than 3 ohms?

Yes

GO to J6

No	REPAIR the circuit in question.

J6 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER

Connect DSP C4452A and C4452B .

Ignition ON.

Operate the audio system in AM/ FM mode.

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is connected. For the suspect speaker, measure:
Click to display connectors
Instrument Panel Center Speaker

Positive Lead Measurement / Action Negative Lead

C2359-1 C2359-2

C2359-3 C2359-4

Click to display connectors
Left Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C569-1 C569-2

Click to display connectors
Right Front Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C645-1 C645-2

Click to display connectors
Left Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C5002-1 C5002-3

Click to display connectors
Right Front Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C6002-1 C6002-3

Click to display connectors
Left Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C523-1 C523-4

Click to display connectors
Right Front Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C612-1 C612-4

Click to display connectors
Left Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C744-1 C744-2

Click to display connectors
Right Rear Door Tweeter Speaker

Positive Lead Measurement / Action Negative Lead

C844-1 C844-2

Click to display connectors
Left Rear Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C751-1 C751-3

Click to display connectors
Right Rear Door Midrange Speaker

Positive Lead Measurement / Action Negative Lead

C851-1 C851-3

Click to display connectors
Left Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C702-1 C702-4

Click to display connectors
Right Rear Door Woofer Speaker

Positive Lead Measurement / Action Negative Lead

C802-1 C802-4

Click to display connectors
Left D-Pillar Speaker

Positive Lead Measurement / Action Negative Lead

C485-1 C485-2

C485-3 C485-4

Click to display connectors
Right D-Pillar Speaker

Positive Lead Measurement / Action Negative Lead

C484-1 C484-2

C484-3 C484-4

Click to display connectors
Left Front Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9063-1 C9063-3

Click to display connectors
Right Front Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9064-1 C9064-3

Click to display connectors
Left Rear Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9065-1 C9065-3

Click to display connectors
Right Rear Overhead Speaker

Positive Lead Measurement / Action Negative Lead

C9066-1 C9066-3

Click to display connectors
Subwoofer Speaker

Positive Lead Measurement / Action Negative Lead

C4436-1 C4436-2

C4436-3 C4436-4

Is a fluctuating AC voltage present?

Yes

INSTALL a new speaker for the one in question.

GO to J7

J7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST K : THE AUDIO/SYNC SYSTEM DOES NOT OPERATE CORRECTLY FROM THE FCIMB (FRONT CONTROLS INTERFACE MODULE B)

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

Possible Sources

Network communication concern
ACM concern
APIM concern
FCIMB

K1 VERIFY THE ACM (AUDIO FRONT CONTROL MODULE) , THE APIM (SYNC MODULE) AND THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) PASS THE NETWORK TEST

Ignition ON.

Using a diagnostic scan tool, carry out the network test.

Does the ACM, the APIM and the FCIMB pass the network test?

Yes

GO to K2

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

K2 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the ACM DTC Chart in this section.

GO to K3

K3 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the APIM DTC Chart in this section.

GO to K4

K4 CHECK FOR FCIMB (FRONT CONTROLS INTERFACE MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the FCIMB self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the FCIMB DTC Chart in this section.

GO to K5

K5 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the FCIMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB.
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. Address the root cause of any connector or pin issues.

PINPOINT TEST L : ONE OR MORE AUDIO/SYNC STEERING WHEEL CONTROL BUTTON IS INOPERATIVE

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
SIMA B11AF:11	Phone Button: Circuit Short To Ground	Set in continuous memory when the SIMA detects a short to ground from the phone button steering wheel switch input circuits.
SIMA B11AF:12	Phone Button: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the SIMA detects a short to voltage from the phone button steering wheel switch input circuits.
SIMA B11AF:13	Phone Button: Circuit Open	Sets in continuous memory when the SIMA detects an open from the phone button steering wheel switch input circuits.
SIMA B11AF:71	Phone Button: Actuator Stuck	Sets in continuous memory and during the on-demand self-test when the SIMA detects the phone button steering wheel switch is active for more than 2 minutes.
SIMA B1380:4A	Steering Wheel Right Switch Pack: Incorrect Component Installed	Sets in continuous memory and during the on-demand self-test when the SIMA detects a short to ground from the right upper steering wheel switch input circuits.
SIMA B1380:71	Steering Wheel Right Switch Pack: Actuator Stuck	Sets in continuous memory and during the on-demand self-test when the SIMA detects the right upper steering wheel switch is active.

Possible Sources

Network communication concern
Wiring, terminals, or connectors
Steering wheel switch
SIMA

L1 CHECK FOR COMMUNICATION TO THE SIMA (SWITCH INPUT MODULE A)

Ignition ON.

Using a diagnostic scan tool, carry out the network test

Does the SIMA pass the network test?

Yes

GO to L2

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

L2 CHECK FOR SIMA (SWITCH INPUT MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SIMA self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

For DTC B11AF:11, B11AF:12, B11AF:13, B11AF:71, B1380:4A, or B1380:71, GO to L3
For all other Diagnostic Trouble Codes (DTCs), REFER to the SIMA DTC Chart in this section.

GO to L3

L3 CHECK FOR VOLTAGE TO THE STEERING WHEEL SWITCH

Ignition OFF.

NOTE: This step is only necessary for the right upper steering wheel switch Remove the driver airbag.
REFER to: Driver Airbag (501-20B Supplemental Restraint System, Removal and Installation).

Disconnect the suspect steering wheel switch.

Ignition ON.

Measure:
Click to display connectors
Right Upper Steering Wheel Switch

Positive Lead Measurement / Action Negative Lead

C2999-2 C2999-3

Click to display connectors
Push To Talk Switch

Positive Lead Measurement / Action Negative Lead

C2568-1 C2568-2

Is the voltage approximately 5 volts?

Yes

INSTALL a new steering wheel switch for the one in question.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

GO to L4

L4 CHECK THE STEERING WHEEL SWITCH CIRCUITRY

Ignition OFF.

Disconnect SIMA (Left Upper Steering Wheel Switch) C2998 .

Inspect the steering wheel harness for opens and shorts.

Is the steering wheel harness OK?

Yes

GO to L5

No	REPAIR the steering wheel henries or INSTALL a new steering wheel as necessary. REFER to: Steering Wheel (211-04 Steering Column, Removal and Installation).

L5 CHECK FOR CORRECT SIMA (SWITCH INPUT MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the SIMA connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the SIMA connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SIMA.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. Address the root cause of any connector or pin issues.

PINPOINT TEST M : THE DRIVER ASSIST BUTTON IS INOPERATIVE

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
FCIMB B10B8:63	Push Buttons: Circuit/Component Protection Time-Out	Set in continuous memory when the FCIMB detects a short to ground from the phone button steering wheel switch input circuits.

Possible Sources

Wiring, terminals, or connectors
Instrument panel switch pack
FCIMB

M1 BYPASS THE INSTRUMENT PANEL SWITCH PACK

Ignition OFF.

Disconnect Instrument Panel Switch Pack C2035 .

Ignition ON.

Connect:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2035-3 Ground

Remove the fused jumper wire.

Does the display screen image change to the Settings?

Yes

GO to M2

GO to M3

M2 CHECK THE INSTRUMENT PANEL SWITCH PACK GROUND CIRCUIT FOR AN OPEN

Exit out of the Settings on the display unit.

Connect:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2035-3 C2035-1

Remove the fused jumper wire.

Does the display screen image change to the Settings?

Yes

INSTALL a new instrument panel switch pack.

No	REPAIR the circuit.

M3 CHECK THE DRIVER ASSIST INPUT CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect FCIMB C2402 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2035-3 Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to M4

No	REPAIR the circuit.

M4 CHECK THE DRIVER ASSIST INPUT CIRCUIT FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2035-3 C2402-7

Is the resistance less than 3 ohms?

Yes

GO to M5

No	REPAIR the circuit.

M5 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the FCIMB connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB.
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. Address the root cause of any connector or pin issues.

PINPOINT TEST N : THE DISPLAY UNIT IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

NOTE: The display unit calibrates after each ignition cycle. Touching the display during an ignition cycle may cause the display unit to be inoperative.

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM B108E:01	Display: General Electrical Failure	Sets in continuous memory when the APIM detects an error from the display unit.
APIM B108E:02	Display: General Signal Failure	Sets in continuous memory when the APIM receives a message from the display unit indicating a fault.
APIM B108E:4A	Display: Incorrect Component Installed	Sets in continuous memory when the APIM detects an incorrect display unit.
APIM B108E:4B	Display: Over Temperature	Sets in continuous memory when the APIM receives a message from the display unit reporting an over temperature condition.
APIM B108E:87	Display: Missing Message	Sets in continuous memory when the APIM loses communication to the display unit.
APIM U0162:00	Lost Communication With Navigation Display Module: No Sub Type Information	Sets in continuous memory when the APIM loses communication to the display unit.

Possible Sources

Communication concern
Configuration concern
LVDS cable
Display unit
APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Circuit Tester and LVDS Adapter Kit 420-912 (Rotunda part number NUD420-912) or equivalent tool.

N1 CHECK FOR A NETWORK CONCERN

NOTE: The display screen is blank if a concern with the HS-CAN3 is present.

Ignition ON.

Using a diagnostic scan tool, carry out the network test.

Does the ACM and the APIM pass the network test?

Yes

GO to N2

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

N2 CHECK FOR COMMUNICATION AND CONFIGURATION DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Code (CMDTCs).

Are any communication or configuration related Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate module DTC Chart in this section.

GO to N3

N3 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the ACM DTC Chart in this section.

GO to N4

N4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

Yes

For DTC B108E:01, B108E:02, B108E:4A, B108E:4B, B108E:87 or U0162:00, GO to N12
For all other Diagnostic Trouble Codes (DTCs), REFER to the APIM DTC Chart in this section.

GO to N5

N5 REBOOT THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION

NOTE: In the event the APIM is not receiving the ignition status message, the audio system still powers up when using the SEEK UP and POWER buttons to reboot the APIM. Simultaneously press and hold the SEEK UP and POWER buttons for 10 seconds. As the APIM reboot begins, the display screen turns black before the startup sequence begins.

After the reboot is complete, operate the system to verify if the concern is still present.

Is the concern still present?

Yes

If the display unit is blank or black, GO to N10
If the display unit is not responsive to touch, is locked or frozen, GO to N6
If the display unit is slow to respond to touch, GO to N8
If the image displayed is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear, GO to N9
For all other concerns with the display unit, GO to N10

No	VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern is not duplicated, the system is operating correctly at this time. INSTRUCT the vehicle owner the correct operation of the display unit.

N6 ACCESS THE BEZEL DIAGNOSTICS

Access "APIM Diagnostics" using Bezel Diagnostics.
REFER to: Bezel Diagnostics (415-00 Information and Entertainment System - General Information, General Procedures).

Select the "RGB Pixel Test".

Does the display unit enter the "RGB Pixel Test" mode?

Yes

GO to N7

GO to N12

N7 INSPECT THE DISPLAY FOR CRACKS

While cycling through one color at a time, carefully inspect the screen for cracks.

Are any cracks present on the display?

Yes

Click here to access Guided Routine (FDIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

GO to N8

N8 CONFIRM THE TOUCH RESPONSE

Access "APIM Diagnostics" using Bezel Diagnostics.
REFER to: Bezel Diagnostics (415-00 Information and Entertainment System - General Information, General Procedures).

Select the "Touchscreen Activation Test".

Touch several points around the display unit and observe the display touch response. The most recent touch point is indicated by a blue box and prior touch points are indicated by white boxes.

Does the display unit respond correctly and respond in a timely manner to each touch point?

Yes

VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern cannot be duplicated, the system is operating correctly at this time. INSTRUCT the vehicle owner in the correct operation of the display unit.

GO to N14

N9 INSPECT THE DISPLAY UNIT IMAGE CLARITY

Access "APIM Diagnostics" using Bezel Diagnostics.
REFER to: Bezel Diagnostics (415-00 Information and Entertainment System - General Information, General Procedures).

Select the "RGB Pixel Test" and then "Display Test Pattern" while inspecting the display image quality.

Is the image quality concern present when using the "RGB Pixel Test" and "Display Test Pattern" functions?

Yes

GO to N14

No	The system is operating correctly at this time. VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated.

N10 CHECK IF THE IPC (INSTRUMENT PANEL CLUSTER) POWERS UP

Ignition OFF.

Ignition ON.

Does the IPC power up when the ignition is cycled on?

Yes

GO to N11

No	DIAGNOSE the no power in ON condition. REFER to: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

N11 CHECK THE APIM (SYNC MODULE) IGNITION KEY INPUT (KEYPOS) PID (PARAMETER IDENTIFICATION)

View the following APIM PID:
- Access the APIM and monitor the KEYPOS (none) PID

Does the PID indicate Ignition?

Yes

GO to N12

GO to N14

N12 CHECK THE LVDS (LOW VOLTAGE DIFFERENTIAL SIGNALING) CABLE FOR AN OPEN

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

Ignition OFF.

Disconnect APIM C2383D .

Disconnect Display Unit C2253 .

Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C2383D-1		C2253-4
C2383D-2		C2253-3
C2383D-3		C2253-2
C2383D-4		C2253-1
C2383D - Shield		C2253 - Shield

Are the resistances less than 3 ohms?

Yes

GO to N13

INSTALL a new LVDS cable.
REFER to: Low Voltage Differential Signalling (LVDS) Cable (415-00 Information and Entertainment System - General Information, Removal and Installation). After installing a new cable, REBOOT the APIM by simultaneously pressing and holding the SEEK UP and POWER buttons for 10 seconds, and verify the display unit operation.

N13 CHECK FOR CORRECT VOLTAGE TO THE DISPLAY UNIT

NOTICE: Use the male Flex Probe 300-08057 (0.5 mm) or equivalent. Failure to use the correct probe may damage the LVDS cable.

Connect APIM C2383D .

Ignition ON.

Using the male Flex Probe 300-08057 (0.5 mm) or equivalent, measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2253-3 Ground

Is the voltage greater than 11 volts?

Yes

Click here to access Guided Routine (FDIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

GO to N14

N14 TEMPORARILY REMOVE THE POWER FROM THE APIM (SYNC MODULE) AND RECHECK THE SYSTEM OPERATION

Ignition OFF.

Remove BCM fuse 15 (15A).

Wait 1 minute.

Install BCM fuse 15 (15A).

Ignition ON.

Test the system to verify the concern is still present.

Is the concern still present?

Yes

GO to N15

The system is operating correctly at this time. VERIFY the specific concern by duplicating the steps that were taken when the original concern was generated. If the concern cannot be duplicated, the concern may have been caused from a low/high voltage event such as jump starting a vehicle or a drained battery.

N15 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the APIM and any related in-line connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST O : SOUND FROM THE SYNC SYSTEM (MUSIC/AUDIBLE PROMPTS) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

Possible Sources

Wiring, terminals, or connectors
Steering wheel switch input concern
APIM
ACM

O1 CHECK THE OPERATION OF THE SPEAKERS USING THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) MODE

Ignition ON.

Operate the audio system in AM/ FM mode.

Using the audio system fade and balance features, adjust the audio sound to each of the zones (left front, right front, left rear and right rear).

Do all of the speakers operate?

Yes

GO to O2

No	REFER to the appropriate symptom in the Speakers and Sound Quality Symptom Chart.

O2 CHECK FOR SIMA (SWITCH INPUT MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SIMA self-test.

Are any SIMA Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the SIMA DTC Chart in this section.

GO to O3

O3 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect ACM C4240B .

Disconnect APIM C2383A .

Measure:
Click to display connectors
Mono/Alert

Positive Lead Measurement / Action Negative Lead

C4240B-19 Ground

C4240B-30 Ground

Click to display connectors
Stereo Left

Positive Lead Measurement / Action Negative Lead

C4240B-20 Ground

C4240B-31 Ground

Click to display connectors
Stereo Right

Positive Lead Measurement / Action Negative Lead

C4240B-21 Ground

C4240B-32 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to O4

No	REPAIR the circuit in question.

O4 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors
Mono/Alert

Positive Lead Measurement / Action Negative Lead

C4240B-19 Ground

C4240B-30 Ground

Click to display connectors
Stereo Left

Positive Lead Measurement / Action Negative Lead

C4240B-20 Ground

C4240B-31 Ground

Click to display connectors
Stereo Right

Positive Lead Measurement / Action Negative Lead

C4240B-21 Ground

C4240B-32 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to O5

O5 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TOGETHER

Measure:
Click to display connectors
Mono/Alert

Positive Lead Measurement / Action Negative Lead

C4240B-19 C4240B-30

Click to display connectors
Stereo Left

Positive Lead Measurement / Action Negative Lead

C4240B-20 C4240B-31

Click to display connectors
Stereo Right

Positive Lead Measurement / Action Negative Lead

C4240B-21 C4240B-32

Are the resistances greater than 10,000 ohms?

Yes

GO to O6

No	REPAIR the circuits in question.

O6 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR AN OPEN

Measure:
Click to display connectors
Mono/Alert

Positive Lead Measurement / Action Negative Lead

C4240B-19 C2383A-3

C4240B-30 C2383A-4

Click to display connectors
Stereo Left

Positive Lead Measurement / Action Negative Lead

C4240B-20 C2383A-23

C4240B-31 C2383A-24

Click to display connectors
Stereo Right

Positive Lead Measurement / Action Negative Lead

C4240B-21 C2383A-25

C4240B-32 C2383A-26

Are the resistances less than 3 ohms?

Yes

GO to O7

No	REPAIR the circuit in question.

O7 CHECK FOR AN AC (ALTERNATING CURRENT) VOLTAGE SIGNAL FROM THE APIM (SYNC MODULE) OUTPUT CIRCUITS

Connect APIM C2383A .

Ignition ON.

For a concern playing music using the SYNC system, play an audio file through the audio system using a SYNC audio source (Bluetooth or USB port).

For a concern with the SYNC audible prompts, repeatedly press the VOICE button on the steering wheel switch while measuring the voltage.

Measure:
Click to display connectors
Mono/Alert

Positive Lead Measurement / Action Negative Lead

C4240B-19 C4240B-30

Click to display connectors
Stereo Left

Positive Lead Measurement / Action Negative Lead

C4240B-20 C4240B-31

Click to display connectors
Stereo Right

Positive Lead Measurement / Action Negative Lead

C4240B-21 C4240B-32

Is a fluctuating AC voltage present?

Yes

GO to O9

GO to O8

O8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the APIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

O9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST P : VOICE COMMANDS ARE INOPERATIVE OR OUTGOING AUDIO IS NOT TRANSMITTED DURING A PHONE CALL

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM B1D79:11	Microphone Input: Circuit Short To Ground	Sets during the on-demand self-test when the APIM detects a short to ground from the microphone circuitry.
APIM B1D79:12	Microphone Input: Circuit Short To Battery	Sets during the on-demand self-test when the APIM detects a short to voltage from the microphone circuitry.
APIM B1D79:13	Microphone Input: Circuit Open	Sets during the on-demand self-test when the APIM detects an open from the microphone circuitry.

Possible Sources

Wiring, terminals, or connectors
Steering wheel switch input concern
Microphone
APIM

P1 CHECK FOR SIMA (SWITCH INPUT MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, carry out the SIMA self-test.

Are any SIMA Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the SIMA DTC Chart in this section.

GO to P2

P2 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect APIM C2383A .

Disconnect Microphone C9221 .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-12 Ground

C2383A-13 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to P3

No	REPAIR the circuit in question.

P3 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-12 Ground

C2383A-13 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to P4

P4 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TOGETHER

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-12 C2383A-13

Is the resistance greater than 10,000 ohms?

Yes

GO to P5

No	REPAIR the circuits.

P5 CHECK THE MICROPHONE CIRCUITS FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-12 C9221-1

C2383A-13 C9221-2

Are the resistances less than 3 ohms?

Yes

GO to P6

No	REPAIR the circuit in question.

P6 CHECK THE MICROPHONE

Connect APIM C2383A .

INSTALL a new voice microphone.
REFER to: Voice Microphone (415-00 Information and Entertainment System - General Information, Removal and Installation).

Test the microphone operation by checking the outgoing call audio with a test phone.

Does the outgoing call audio operate correctly?

Yes

The repair is complete. The concern was cause by the voice microphone.

GO to P7

P7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Disconnect and inspect the APIM connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the APIM connector. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Q : USB (UNIVERSAL SERIAL BUS) INPUT CONCERN

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM B1252:11	USB Port: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the APIM detects a short to ground from the USB cable.
APIM B1252:13	USB Port: Circuit Open	Sets during the on-demand self-test when the APIM detects an open from the USB cable.
APIM B14FD:11	External Media Control Connectivity: Circuit Short To Ground	Sets in continuous memory when the APIM detects a short to ground from the USB hub power supply circuit.

Possible Sources

USB device
Foreign object in the USB port
USB cable
Media hub
APIM

Q1 CHECK FOR FOREIGN MATERIAL IN THE USB (UNIVERSAL SERIAL BUS) PORTS

Ignition OFF.

Remove any devices connected to the USB ports.

Inspect the USB ports for foreign material.

Is any foreign material present in either USB port?

Yes

REMOVE the foreign material present in the USB port.

GO to Q2

Q2 CHECK THE OPERATION FROM BOTH USB (UNIVERSAL SERIAL BUS) PORTS

Obtain a USB Type A Female-to-USB Type C Male adapter to check the USB-C connection in the media hub.

Ignition ON.

Connect the MIT 105-00120 to one USB port.

Using the MIT 105-00120, attempt to play an audio file.

Connect the MIT 105-00120 to the other USB port.

Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK for both USB ports?

Yes

The system is operating correctly. The concern is with the suspect USB device.

No	If the audio output is inoperative for only one USB port, INSTALL a new media hub. REFER to: Media Hub (415-00 Information and Entertainment System - General Information, Removal and Installation). If the audio output is inoperative for both USB ports, GO to Q3

Q3 CHECK FOR SHORT TO GROUND DTC (DIAGNOSTIC TROUBLE CODE) B1252:11 AND B14FD:11

Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 or B14FD:11 present?

Yes

GO to Q4

GO to Q9

Q4 ISOLATE THE MEDIA HUB

Ignition OFF.

Disconnect Media Hub C3512A and C3512B .

Ignition ON.

Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).

Wait 30 seconds.

NOTE: DTC B1252:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 or B14FD:11 still present?

Yes

For DTC B1252:11, GO to Q5
For DTC B14FD:11, GO to Q7

No	INSTALL a new media hub. REFER to: Media Hub (415-00 Information and Entertainment System - General Information, Removal and Installation).

Q5 ISOLATE THE REAR USB (UNIVERSAL SERIAL BUS) CABLE FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the rear USB cable from the front USB cable.

Ignition ON.

Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).

Wait 30 seconds.

NOTE: DTC B1252:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 still present?

Yes

GO to Q6

No	INSTALL a new rear USB cable. REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

Q6 ISOLATE THE FRONT USB (UNIVERSAL SERIAL BUS) CABLE FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the front USB cable from the APIM .

Ignition ON.

Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).

Wait 30 seconds.

NOTE: DTC B1252:13 may be present when carrying out this step and should be disregarded at this time. Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC B1252:11 still present?

Yes

GO to Q15

No	INSTALL a new rear USB cable. REFER to: SYNC Module [APIM] to Universal Serial Bus (USB) Port Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

Q7 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect APIM C2383A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-8 Ground

C2383A-38 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to Q8

No	REPAIR the circuit in question.

Q8 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR A SHORT TO EACH OTHER

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-8 C2383A-38

Is the resistance greater than 10,000 ohms?

Yes

GO to Q15

No	REPAIR the circuits.

Q9 CHECK FOR POWER TO THE MEDIA HUB

Ignition OFF.

Disconnect Media Hub C3512A .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3512A-1 C3512A-4

Is the voltage greater than 11 volts?

Yes

GO to Q12

GO to Q10

Q10 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect APIM C2383A .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3512A-1 Ground

C3512A-4 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to Q11

Q11 CHECK THE MEDIA HUB POWER AND RETURN CIRCUITS FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3512A-1 C2383A-8

C3512A-4 C2383A-38

Are the resistances less than 3 ohms?

Yes

GO to Q15

No	REPAIR the circuit in question.

Q12 BYPASS THE MEDIA HUB

Ignition OFF.

Disconnect Media Hub C3512B .

Connect a Type A 4 Pin To Female Type Mini-B 5 Pin USB 2.0 Adaptor (Rotunda part number CCMUSB-AF-BF5) or equivalent to the media hub C3512B.

Ignition ON.

Connect the MIT 105-00120 to the USB adaptor.

Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?

Yes

INSTALL a new media hub.
REFER to: Media Hub (415-00 Information and Entertainment System - General Information, Removal and Installation).

GO to Q13

Q13 BYPASS THE REAR USB (UNIVERSAL SERIAL BUS) CABLE

Ignition OFF.

Disconnect the USB cable in-line connection located behind the left floor console trim panel.

Connect a Type A 4 Pin To Female Type Mini-B 5 Pin USB 2.0 Adaptor (Rotunda part number CCMUSB-AF-BF5) or equivalent to the front USB cable.

Connect the MIT 105-00120 to the USB adaptor.

Ignition ON.

Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?

Yes

INSTALL a new rear USB cable.

GO to Q14

Q14 BYPASS THE FRONT USB (UNIVERSAL SERIAL BUS) CABLE

Ignition OFF.

Obtain a new front USB cable.

Connect one end of the new front USB cable to the APIM C2383B.

Connect a Type A 4 Pin To Female Type Mini-B 5 Pin USB 2.0 Adaptor (Rotunda part number CCMUSB-AF-BF5) or equivalent to the other end of the new front USB cable.

Connect the MIT 105-00120 to the USB adaptor.

Ignition ON.

Using the MIT 105-00120, attempt to play an audio file.

Is the audio output OK?

Yes

INSTALL the new front USB cable.

GO to Q15

Q15 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM and any related in-line connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST R : UNABLE TO PAIR BLUETOOTH DEVICE OR THE BLUETOOTH FUNCTIONALITY IS INOPERATIVE

Normal Operation and Fault Conditions

Possible Sources

Customer error
Incompatible Bluetooth device
Bluetooth device
APIM

R1 CHECK THE APIM (SYNC MODULE) BLUETOOTH PAIRING CAPABILITY

Ignition ON.

Connect one of the following to a USB port:
- A MIT 420-373 (or Rotunda part number 105-00120-GEN2) or equivalent verification tool.
- Compatible Bluetooth Device (only if the MIT (or equivalent verification tool) is not available). Refer to the appropriate Ford website to view a list of compatible devices and features.

With the MIT (equivalent verification tool) or compatible Bluetooth device in Bluetooth mode, pair it with the APIM. Follow the device instructions for Bluetooth pairing.

View the following APIM Parameter Identifications (PIDs):
- Access the APIM and monitor the BT_PAIR (none) PID
- Access the APIM and monitor the BT_CONN (none) PID

Do the Parameter Identifications (PIDs) both read "Yes"?

Yes

REFER to the appropriate Ford website to view a list of compatible devices, features and other possible conditions for the cause of the concern.

GO to R2

R2 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the APIM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST S : AN INDIVIDUAL BLUETOOTH DEVICE OR FEATURE IS INOPERATIVE

NOTE: If an individual Bluetooth device is able to pair with the SYNC system, there are no concerns with the APIM.

Normal Operation and Fault Conditions

Instruct the vehicle owner about device compatibility. Not all phone features are available through the SYNC system.

Possible Sources

Incompatible Bluetooth device or feature

Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

PINPOINT TEST T : THE 911 ASSIST OR EMERGENCY ASSISTANCE NOT OPERATIONAL MESSAGE DISPLAYS

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

If a fault message appears indicating the 911 Assist or emergency assistance is not operational, the concern may be caused due to modules not communicating or incorrect APIM procedures.

Possible Sources

911 Assist or emergency assistance feature disabled
Network communication concern
Module configuration concern
APIM

T1 VERIFY THE 911 ASSIST OR EMERGENCY ASSISTANCE FEATURE IS ENABLED

Ignition ON.

Check the 911 Assist or emergency assistance feature setting in the display settings menu.

Is the 911 Assist or emergency assistance setting enabled?

Yes

GO to T2

No	ENABLE the 911 Assist or emergency assistance feature.

T2 CHECK FOR CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Continuous Memory Diagnostic Trouble Codes (CMDTCs) present?

Yes

REFER to the appropriate module DTC Chart in the appropriate section.

GO to T3

T3 CHECK THE VEHICLE SERVICE HISTORY

Check the vehicle service history for recent service actions related to the RCM and the APIM.

Is any recent service action noted with the RCM or the APIM noted?

Yes

CARRY OUT the PMI procedure using As-Built data as directed by the diagnostic scan tool for the module in question.

GO to T4

T4 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM and any related in-line connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST U : THE COMPASS/NAVIGATION IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM B119F:01	GPS Antenna: General Electrical Failure	Sets in continuous memory when the APIM detects a short to ground or short to voltage from the GPS antenna cable.
APIM B119F:13	GPS Antenna: Circuit Open	Sets in continuous memory when the APIM detects an open from the GPS antenna cable.

Possible Sources

Corrosion
Network communication concern
Obstructions in the GPS antenna line of sight to the satellite
GPS antenna cable
Roof mounted antenna
ACM
APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Kit Tool 420-525 (Rotunda part number NUD420-525) or equivalent tool.

NOTE: Carrying out a Master Reset of the SYNC system prior to diagnostics may resolve some compass/navigation concerns.

U1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE NETWORK COMMUNICATION

Ignition ON.

Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).

Ignition OFF.

Ignition ON.

Wait 30 seconds.

Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U0121:00 present?

Yes

GO to Pinpoint Test AD

GO to U2

U2 CHECK THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA RECEPTION

Access "APIM Diagnostics" using Bezel Diagnostics.
REFER to: Bezel Diagnostics (415-00 Information and Entertainment System - General Information, General Procedures).

Select "Location Information".

NOTE: If the value reads less than 3 for "Number of Satellites" or "No GPS Fix" for "Fix Mode", drive the vehicle to an outdoor location free from obstacles such as tall buildings and large trees. Monitor the "Number of Satellites" and "Fix Mode".

Are 3 or more satellites displayed for "Number of Satellites" and is "3D fix obtained" displayed for "fix Mode"?

Yes

GO to U3

GO to U4

U3 CHECK COMPASS FOR CORRECT OPERATION

Operate the vehicle and observe the compass heading.

Does the compass operate correctly?

Yes

The system is operating correctly at this time. The concern may have been caused by obstructions in the antenna line of sight to the satellites for an extended period of time.

GO to U13

U4 CHECK FOR CORRECT APIM (SYNC MODULE) OUTPUT VOLTAGE AT THE GPS (GLOBAL POSITIONING SYSTEM) CABLE CONNECTION

Ignition OFF.

Disconnect GPS antenna cable from the APIM .

Ignition ON.

Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:

Positive Lead Measurement / Action Negative Lead

GPS cable core at the APIM (component side) Ground

Is the voltage between 4.7 and 5.8 volts?

Yes

For vehicles not equipped with a satellite radio, GO to U9
For vehicles equipped with a satellite radio, GO to U5

GO to U13

U5 CHECK FOR PROMOTIONAL CHANNEL 184

Operate the audio system in satellite radio mode.

Select channel 184.

Does the satellite radio system receive channel 184 with normal sound quality?

Yes

GO to U10

GO to U6

U6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE

Ignition OFF.

Disconnect the satellite radio antenna cable at the ACM .

Ignition ON.

Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:

Positive Lead Measurement / Action Negative Lead

Satellite cable core (component side) Ground

Is the voltage between 4.7 and 5.8 volts?

Yes

GO to U7

GO to U12

U7 CHECK FOR VOLTAGE TO THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA

Ignition OFF.

Connect the satellite radio antenna cable at the ACM .

Disconnect the GPS/satellite radio antenna cable from the satellite radio antenna.

Ignition ON.

Measure:

Positive Lead Measurement / Action Negative Lead

GPS/satellite radio antenna cable core at the antenna, cavity 1 Ground

Is the voltage between 4.7 and 5.8 volts?

Yes

GO to U8

No	IDENTIFY the cable with the open or short. INSTALL a new GPS/satellite radio cable for the one in question.

U8 ISOLATE THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA SPLITTER CABLE

Install a new satellite radio/GPS antenna splitter cable.
REFER to: Satellite Radio / Global Positioning System (GPS) Splitter / Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

Operate the vehicle and observe the compass heading.

Does the compass operate correctly?

Yes

The repair is complete. The concern was caused by the original satellite radio/GPS antenna splitter cable.

GO to U10

U9 CHECK FOR VOLTAGE TO THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA

Ignition OFF.

Disconnect the GPS antenna cable from the roof mounted antenna.

Connect GPS antenna cable to the APIM .

Ignition ON.

Measure:

Positive Lead Measurement / Action Negative Lead

GPS antenna cable core at the antenna, cavity 1 Ground

Is the voltage between 4.7 and 5.8 volts?

Yes

GO to U10

No	IDENTIFY the cable with the short to ground. INSTALL a new GPS antenna cable for the one in question. REFER to: Satellite Radio / Global Positioning System (GPS) Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

U10 CHECK THE ANTENNA BASE AND MOUNTING SURFACE

Remove the GPS/satellite radio antenna.
REFER to: Roof Mounted Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).

Inspect for corrosion on the audio unit antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?

Yes

GO to U11

No	REPAIR any corrosion on the antenna unit base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

U11 CHECK THE SATELLITE RADIO/GPS (GLOBAL POSITIONING SYSTEM) ANTENNA

Install a new satellite radio/GPS antenna.
REFER to: Roof Mounted Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation).

Test the system for normal operation.

Does the compass operate correctly?

Yes

The repair is complete. The concern was caused by the satellite radio/GPS antenna.

GO to U13

U12 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition ON.

Disconnect and inspect all ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

U13 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the APIM and any related in-line connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM and any related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST V : THE DEEP SLEEP MODE ACTIVATED NOTIFICATION IS RECEIVED ON THE FORDPASS APP

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Overview (415-00 Information and Entertainment System - General Information, Description and Operation).

The TCU turns off when vehicle battery voltage falls below the minimum required or the vehicle is inactive beyond a designated time limit to preserve battery power. The TCU remains off until the next engine running event . The connected mobile device App reports a deep sleep mode when notifications are turned on.

Possible Sources

Battery drain concern
Charging system concern
Starting system concern

V1 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging system related Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE the charging system. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to V2

V2 CHECK FOR A BATTERY DRAIN CONDITION

Ignition OFF.

Carry out the battery drain check. Refer to the Battery Drain Check in section 414-01.

Is an excessive battery drain present?

Yes

CORRECT the excessive battery drain condition.

GO to V3

V3 CONFIRM A SLOW OR NO CRANK WHILE STARTING

Check with the vehicle owner the recent history of the vehicle.

Observe the starting system while starting the engine.

Is a slow or no crank condition noted in recent history by the vehicle owner or does the vehicle currently exhibit a slow or no crank condition?

Yes

DIAGNOSE the slow or no crank condition. REFER to the appropriate Diagnosis and Testing in section 303-06

No	The system is operating correctly. The concern may have been caused by unique operating conditions or a prolonged loss of TCU cellular reception.

PINPOINT TEST W : THE SYNC CONNECT FEATURE IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

TCU Coaxial Cable Connections

Item	Part Number	Description
1	—	TCU antenna connection
2	—	Cellular antenna connection

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
TCU B1246:11	GSM (Group System for Mobile) Antenna: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the TCU detects a short to ground from the cellular antenna cable to the satellite antenna for more than 5 seconds.
TCU B1246:12	GSM (Group System for Mobile) Antenna: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the TCU detects a short to voltage from the cellular antenna cable to the satellite antenna for more than 5 seconds.
TCU B1246:13	GSM (Group System for Mobile) Antenna: Circuit Open	Sets in continuous memory and during the on-demand self-test when the TCU detects an open from the cellular antenna cable to the satellite antenna for more than 5 seconds.

Possible Sources

Outdated FordPass mobile application software version/level
Poor TCU reception
Cellular device
Wiring, terminals, or connectors
Cellular antenna cable
Roof mounted antenna
TCU

Visual Inspection and Pre-checks

Check the following with the vehicle owner:
The FordPass mobile application software version level matches the latest software version level available.
The device is logged into the FordPass mobile application with the login created from the application or with the Ford Owner account login that corresponds with the vehicle.
The vehicle is added to the FordPass mobile application.
SYNC Connect has been fully activated by authorizing the vehicle within the FordPass mobile application.
The vehicle is within cell phone tower range. Refer to the coverage map at mobile data service provider website.
Check the operation of the FordPass mobile applications for correct operation.

NOTE: This pinpoint test presumes the Diagnostic Pre-Checks have been completed.

W1 CHECK FOR CORRECT VEHICLE OPERATION

Verify the SYNC Connect function in question operates correctly on the vehicle, independent of the FordPass mobile application. For example, if the SYNC Connect door lock/unlock function is inoperative, check the operation of the door locks using the door lock control switch or IKT/passive key.

Does the base function in question operate when tested on the vehicle?

Yes

GO to W2

No	REFER to the appropriate section in the Workshop Manual to diagnose the inoperative function.

W2 VERIFY THE TCU (TELEMATIC CONTROL UNIT MODULE) PASSES THE NETWORK TEST

Ignition ON.

Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?

Yes

GO to W3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

W3 CHECK FOR LOST COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Ignition OFF.

Ignition ON.

Wait at least 10 seconds.

Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any lost communication Diagnostic Trouble Codes (DTCs) set in any audio system module?

Yes

REFER to the appropriate DTC Chart in this section.

GO to W4

W4 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELLULAR ANTENNA CABLE FOR A SHORT TO GROUND

Ignition OFF.

Disconnect cellular antenna cable from the TCU .

Disconnect cellular antenna cable from the roof mounted antenna.

Measure:

Positive Lead Measurement / Action Negative Lead

Cellular antenna cable core at the TCU Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to W5

No	INSTALL a new cellular antenna cable. REFER to: Cellular Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation). .

W5 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELLULAR ANTENNA CABLE FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Cellular antenna cable core at the TCU		Ground
Cellular antenna cable shield at the TCU		Ground

Is any voltage present?

Yes

INSTALL a new cellular antenna cable.
REFER to: Cellular Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).
.

GO to W6

W6 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELLULAR ANTENNA CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Cellular antenna cable core at the TCU		Cellular antenna cable shield at the TCU

Is the resistance greater than 10,000 ohms?

Yes

GO to W7

No	INSTALL a new cellular antenna cable. REFER to: Cellular Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation). .

W7 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELLULAR ANTENNA CABLE FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
Cellular antenna cable core at the TCU		Cellular antenna cable core at the satellite antenna, cavity 2
Cellular antenna cable shield at the TCU		Cellular antenna cable shield at the satellite antenna, cavity 2

Is the resistance less than 3 ohms?

Yes

INSTALL a new roof mounted antenna.
REFER to: Roof Mounted Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to W8

No	INSTALL a new cellular antenna cable. REFER to: Cellular Antenna Cable (415-00 Information and Entertainment System - General Information, Removal and Installation). .

W8 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION

Ignition OFF.

Inspect the TCU connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the TCU connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST X : THE VEHICLE WI-FI HOTSPOT FEATURE IS INOPERATIVE, EXPERIENCING POOR DATA SPEED OR CANNOT STREAM ANY DATA

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

TCU Coaxial Cable Connections

Item	Part Number	Description
1	—	TCU antenna connection
2	—	Cellular antenna connection

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
TCU B1D55:11	Antenna #2: Circuit Short To Ground	Sets in continuous memory and during the on-demand self-test when the TCU detects a short to ground from the TCU antenna cable for more than 5 seconds.
TCU B1D55:12	Antenna #2: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the TCU detects a short to voltage from the TCU antenna cable for more than 5 seconds.
TCU B1D55:13	Antenna #2: Circuit Open	Sets in continuous memory and during the on-demand self-test when the TCU detects an open from the TCU antenna cable for more than 5 seconds.

Possible Sources

FordPass concern
Poor TCU reception
Wi-Fi connected device
Wiring, terminals, or connectors
TCU antenna
TCU antenna cable
TCU

X1 CHECK FOR CORRECT SYNC CONNECT OPERATION

Verify the SYNC Connect function operates correctly. For example, check the operation of the door locks using the SYNC Connect feature.

Does the SYNC Connect feature operate?

Yes

GO to X2

No	GO to Pinpoint Test W

X2 COMPARE THE WI-FI SPEED TO A SECOND DEVICE

Park the vehicle away from buildings with a clear view of the sky.

Establish a vehicle Wi-Fi Hotspot connection.

Use a laptop (or equivalent device), connect to the vehicle Wi-Fi Hotspot.
- Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.

Disconnect the laptop (or equivalent device) from the vehicle Wi-Fi Hotspot

Establish a Wi-Fi connection using a cell phone (or equivalent device) using the cellular network.

Use the laptop (or equivalent device) to connect to the new Wi-Fi Hotspot.
- Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.

Compare the data speed from the vehicle Wi-Fi Hotspot to the second device supporting a Wi-Fi hotspot.

Is the data speed of the vehicle 50% or less than the second device?

Yes

GO to X3

No	The system is operating as designed. The concern may have been caused by environmental conditions or obstruction to the signal.

X3 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) ANTENNA CABLE FOR A SHORT TO GROUND

Ignition OFF.

Disconnect TCU antenna cable from the TCU .

Disconnect TCU antenna cable from the TCU antenna.

Measure:

Positive Lead Measurement / Action Negative Lead

TCU antenna cable core at the TCU Ground

Is the resistance greater than 10,000 ohms?

Yes

GO to X4

No	INSTALL a new TCU antenna cable. REFER to: Telematics Control Unit (TCU) Module Antenna Coaxial Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

X4 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) ANTENNA CABLE FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
TCU antenna cable core at the TCU		Ground
TCU antenna cable shield at the TCU		Ground

Is any voltage present?

Yes

INSTALL a new TCU antenna cable.
REFER to: Telematics Control Unit (TCU) Module Antenna Coaxial Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

GO to X5

X5 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) ANTENNA CABLE CORE AND SHIELD FOR A SHORT TOGETHER

Measure:

Positive Lead Measurement / Action Negative Lead

TCU antenna cable core at the TCU TCU antenna cable shield at the TCU

Is the resistance greater than 10,000 ohms?

Yes

GO to X6

No	INSTALL a new TCU antenna cable. REFER to: Telematics Control Unit (TCU) Module Antenna Coaxial Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

X6 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) ANTENNA CABLE FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
TCU antenna cable core at the TCU		TCU antenna cable core at the TCU antenna
TCU antenna cable shield at the TCU		TCU antenna cable shield at the TCU antenna

Are the resistances less than 1 ohm?

Yes

INSTALL a new TCU antenna.
REFER to: Telematics Control Unit (TCU) Module Antenna (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to X7

No	INSTALL a new TCU antenna cable. REFER to: Telematics Control Unit (TCU) Module Antenna Coaxial Cable (415-00 Information and Entertainment System - General Information, Removal and Installation).

X7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION

Ignition OFF.

Inspect the TCU connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the TCU connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Y : SYNC APPLINK CONCERN

Normal Operation and Fault Conditions

NOTE: AppLink does not operate if Android Auto™ and Apple CarPlay™ are enabled.
It is normal for incompatible mobile device platforms, applications, and application versions to be unavailable through SYNC AppLink.
- If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth only, GO to Pinpoint Test R
- If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth and the USB port, GO to Pinpoint Test Q

Possible Sources

Refer to the pinpoint test

Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

PINPOINT TEST Z : ANDROID AUTO™ OR APPLE CARPLAY™ CONCERN

Normal Operation and Fault Conditions

NOTE: Make sure the operating system of the device and the SYNC system are current.
CHECK the operation of the USB port by using a known good USB device to play audio files.
- If the SYNC system does not recognize the USB device, GO to Pinpoint Test Q
- If the SYNC system recognizes the USB device, refer to the Android Auto™ or Apple CarPlay™ information in the Owner Literature.

Possible Sources

Refer to the pinpoint test

Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

PINPOINT TEST AA : OTHER VEHICLE WI-FI HOTSPOT CONCERN

Normal Operation and Fault Conditions

The SYNC system is unable to discover or log onto an unsecure Wi-Fi connection

INSTRUCT the vehicle owner to refer to the SYNC Troubleshooting section of the Owner Literature.

The SYNC Wi-Fi connection does not operate correctly

INSTRUCT the vehicle owner to refer to "Wi-Fi Issues" in the SYNC Troubleshooting section of the Owner Literature.

A device (smartphone/laptop) is unable to discover the vehicle Wi-Fi Hotspot

TURN ON the Wi-Fi Hotspot or visibility feature.

A device (smartphone/laptop) is unable to discover the vehicle Wi-Fi Hotspot

NOTE: Passwords may contain a lowercase "L" or a capital "i" They look identical and the wrong character may have been entered.
OBTAIN the correct password to log onto the Wi-Fi connection. Refer to the Owner Literature and/or the appropriate technical training information.

Possible Sources

FordPass concern
Wi-Fi Hotspot or visibility is turned off
SSID and password set to factory defaults

Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

PINPOINT TEST AB : ANC (ACTIVE NOISE CONTROL) -RELATED DTC (DIAGNOSTIC TROUBLE CODE) CONCERN

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM B116A:01	Handset Microphone: General Electrical Failure	Sets in continuous memory when the ACM detects the left front ANC microphone circuits are shorted together.
ACM B116A:12	Handset Microphone: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the left front ANC microphone circuitry.
ACM B116A:14	Handset Microphone: Circuit Short To Ground Or Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open or a short to ground from the left front ANC microphone circuitry.
ACM B117A:01	Backup Microphone: General Electrical Failure	Sets in continuous memory when the ACM detects the right front ANC microphone circuits are shorted together.
ACM B117A:12	Backup Microphone: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the right front ANC microphone circuitry.
ACM B117A:14	Backup Microphone: Circuit Short To Ground Or Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open or a short to ground from the right front ANC microphone circuitry.
ACM B13F5:01	Microphone 3: General Electrical Failure	Sets in continuous memory when the ACM detects the rear ANC microphone circuits are shorted together.
ACM B13F5:12	Microphone 3: Circuit Short To Battery	Sets in continuous memory and during the on-demand self-test when the ACM detects a short to voltage from the rear ANC microphone circuitry.
ACM B13F5:14	Microphone 3: Circuit Short To Ground Or Open	Sets in continuous memory and during the on-demand self-test when the ACM detects an open or a short to ground from the rear ANC microphone circuitry

Possible Sources

Wiring, terminals, or connectors
ANC microphone
ACM

Visual Inspection and Pre-checks

Make sure no modifications have been made to the audio system.
Inspect the speaker areas for items that may be blocking the speaker sound output.

NOTE: The ANC system is not compatible with aftermarket audio system components and architectures not approved by Ford.

AB1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, carry out the ACM self-test.

Are any ACM speaker-related Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE the speaker Diagnostic Trouble Codes (DTCs) first. REFER to the ACM DTC Chart in this section.

GO to AB2

AB2 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the DSP self-test.

Are any DSP speaker-related Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE the speaker-related Diagnostic Trouble Codes (DTCs) first. REFER to the DSP DTC Chart in this section.

GO to AB3

AB3 INSPECT THE ANC (ACTIVE NOISE CONTROL) MICROPHONES

Inspect each ANC microphone and make sure it is correctly installed into the mounting bezel.

Are the ANC microphones installed correctly?

Yes

GO to AB4

No	Correctly INSTALL the ANC microphone in question. REFER to: Active Noise Control Microphone (415-00 Information and Entertainment System - General Information, Removal and Installation).

AB4 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the suspect ANC microphone. NOTE: Use the Fault Trigger Conditions table at the beginning of this test to identify the suspect microphone.

Disconnect ACM C4240B .

Measure:
Click to display connectors
Left Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9222-1 Ground

C9222-2 Ground

Click to display connectors
Right Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9229-1 Ground

C9229-2 Ground

Click to display connectors
Rear ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9225-1 Ground

C9225-2 Ground

Are the resistances greater than 10,000 ohms?

Yes

GO to AB5

No	REPAIR the circuit in question.

AB5 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors
Left Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9222-1 Ground

C9222-2 Ground

Click to display connectors
Right Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9229-1 Ground

C9229-2 Ground

Click to display connectors
Rear ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9225-1 Ground

C9225-2 Ground

Is any voltage present?

Yes

REPAIR the circuit in question.

GO to AB6

AB6 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TOGETHER

Measure:
Click to display connectors
Left Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9222-1 C9222-2

Click to display connectors
Right Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9229-1 C9229-2

Click to display connectors
Rear ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9225-1 C9225-2

Is the resistance greater than 10,000 ohms?

Yes

GO to AB7

No	REPAIR the circuits.

AB7 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR AN OPEN

Measure:
Click to display connectors
Left Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9222-1 C4240B-15

C9222-2 C4240B-26

Click to display connectors
Right Front ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9229-1 C4240B-16

C9229-2 C4240B-27

Click to display connectors
Center ANC Microphone

Positive Lead Measurement / Action Negative Lead

C9225-1 C4240B-17

C9225-2 C4240B-28

Are the resistances less than 3 ohms?

Yes

INSTALL a new ANC microphone in question. \
REFER to: Active Noise Control Microphone (415-00 Information and Entertainment System - General Information, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to AB8

No	REPAIR the circuit in question.

AB8 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AC : U0100:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM, the DSP, the RACM and the TCU communicate with the PCM over the CAN. If messages are missing or not received from the PCM, features such as the speed compensated volume can be inoperative.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0100:00	Lost Communication With ECM/PCM "A": No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the PCM for more than 5 seconds.
APIM U0100:00	Lost Communication With ECM/PCM "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the PCM for more than 5 seconds.
DSP U0100:00	Lost Communication With ECM/PCM "A": No Sub Type Information	Sets in continuous memory when the DSP detects network messages are missing from the PCM for more than 5 seconds.
RACM U0100:00	Lost Communication With ECM/PCM "A": No Sub Type Information	Sets in continuous memory when the RACM detects network messages are missing from the PCM for more than 5 seconds.
TCU U0100:00	Lost Communication With ECM/PCM "A": No Sub Type Information	Sets in continuous memory when the TCU detects network messages are missing from the PCM for more than 5 seconds.

Possible Sources

Network communication concern
ACM concern
APIM concern
DSP concern
RACM concern
TCU concern
PCM

AC1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AC2

No	The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC2 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE)

Connect the diagnostic scan tool to the vehicle.

Attempt to establish a vehicle session using the diagnostic scan tool.

Can a vehicle session be established?

Yes

GO to AC3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AC3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, RACM, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AC4

AC4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the Diagnosis and Testing in the appropriate 303-14 section.

GO to AC5

AC5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, DSP, RACM, TCU) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, RACM, TCU) setting the DTC.

Is DTC U0100:00 still present?

Yes

GO to AC6

No	The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

AC6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the PCM and the module in question ( ACM, APIM, DSP, RACM, TCU) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AC7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AC7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (PCM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AD : U0121:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The ACM and the APIM communicate with the ABS module over the CAN. If messages are missing or not received from the ABS module, the GPS feature may not be accurate.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0121:00	Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the ABS module for more than 5 seconds.
APIM U0121:00	Lost Communication With Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the ABS module for more than 5 seconds.

Possible Sources

Network communication concern
ACM concern
APIM concern
ABS module

AD1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AD2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the ABS module pass the network test?

Yes

GO to AD3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AD3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AD4

AD4 CHECK FOR NON-NETWORK ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ABS module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).

GO to AD5

AD5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0121:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM) setting the DTC.

Is DTC U0121:00 still present?

Yes

GO to AD6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the ABS module and the module in question ( ACM, APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AD7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AD7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the ABS module connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the ABS module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ABS module.
REFER to: Electric Brake Booster (EBB) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AE : U0140:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIMB (FRONT CONTROLS INTERFACE MODULE B) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM, the DSP, the FCIMB, the RACM and the TCU communicate with the BCM over the CAN. If messages are missing or not received from the BCM, the display screen brightness may not operate not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the BCM for more than 5 seconds.
APIM U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the BCM for more than 5 seconds.
DSP U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory when the DSP detects network messages are missing from the BCM for more than 5 seconds.
FCIMB U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory when the FCIMB detects network messages are missing from the BCM for more than 5 seconds.
RACM U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory when the RACM detects network messages are missing from the BCM for more than 5 seconds.
TCU U0140:00	Lost Communication With Body Control Module: No Sub Type Information	Sets in continuous memory when the TCU detects network messages are missing from the BCM for more than 5 seconds.

Possible Sources

Network communication concern
ACM concern
APIM concern
DSP concern
FCIMB concern
RACM concern
TCU concern
BCM

AE1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AE2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AE2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the BCM pass the network test?

Yes

GO to AE3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AE3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, FCIMB, RACM, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AE4

AE4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the BCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to AE5

AE5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, DSP, FCIMB, RACM, TCU) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, FCIMB, RACM, TCU) setting the DTC.

Is DTC U0140:00 still present?

Yes

GO to AE6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AE6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the BCM and the module in question ( ACM, APIM, DSP, FCIMB, RACM, TCU) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AE7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AE7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the BCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AF : U0151:00 (APIM (SYNC MODULE) , FCIMB (FRONT CONTROLS INTERFACE MODULE B) )

Normal Operation and Fault Conditions

The APIM and the FCIMB communicate with the RCM over the CAN. If messages are missing or not received from the RCM, features such as the 911 Assist or Emergency Assist or the passenger airbag disable indicator may be inoperative.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0151:00	Lost Communication With Restraints Control Module: No Sub Type Information	Sets in continuous memory when the APIM detects messages from the RCM are missing for more than 5 seconds.
FCIMB U0151:00	Lost Communication With Restraints Control Module: No Sub Type Information	Sets in continuous memory when the FCIMB detects messages from the RCM are missing for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
FCIMB concern
RCM

AF1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AF2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AF2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the RCM pass the network test?

Yes

GO to AF3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AF3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM, FCIMB) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AF4

AF4 CHECK FOR NON-NETWORK RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the RCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).

GO to AF5

AF5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0151:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM, FCIMB) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM, FCIMB) setting the DTC.

Is DTC U0151:00 still present?

Yes

GO to AF6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AF6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the RCM and the module in question ( APIM, FCIMB) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AF7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AF7 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RCM and any related in-line connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RCM and any related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RCM.
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AG : U0155:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM, the DSP, the RACM and the TCU communicate with the IPC over the CAN. If messages are missing or not received from the IPC, features such as the display illumination or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the IPC for more than 5 seconds.
APIM U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the IPC for more than 5 seconds.
DSP U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	Sets in continuous memory when the DSP detects network messages are missing from the IPC for more than 5 seconds.
RACM U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	Sets in continuous memory when the RACM detects network messages are missing from the IPC for more than 5 seconds.
TCU U0155:00	Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information	Sets in continuous memory when the TCU detects network messages are missing from the IPC for more than 5 seconds.

Possible Sources

Network communication concern
ACM concern
APIM concern
DSP concern
RACM concern
TCU concern
IPC

AG1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AG2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AG2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the IPC pass the network test?

Yes

GO to AG3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AG3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, RACM, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AG4

AG4 CHECK FOR NON-NETWORK IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the IPC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Instrumentation, Message Center and Warning Chimes - Vehicles With: Head Up Display (HUD) (413-01 Instrumentation, Message Center and Warning Chimes, Diagnosis and Testing).

GO to AG5

AG5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, DSP, RACM, TCU) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP, RACM, TCU) setting the DTC.

Is DTC U0155:00 still present?

Yes

GO to AG6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AG6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the IPC and the module in question ( ACM, APIM, DSP, RACM, TCU) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AG7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AG7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

Ignition OFF.

Disconnect and inspect the IPC connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the IPC connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (IPC).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AH : U0159:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the PAM over the CAN. If messages are missing or not received from the PAM, features such as the parking aid may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0159:00	Lost Communication With Parking Assist Control Module "A": No Sub Type Information	Set in continuous memory when the APIM detects network messages are missing from the PAM for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
BCM (with integrated PAM)

AH1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AH2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AH2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the PAM pass the network test?

Yes

GO to AH3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AH3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AH4

AH4 CHECK FOR NON-NETWORK PAM (PARKING ASSIST CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the PAM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Parking Aid (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Diagnosis and Testing).

GO to AH5

AH5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0159:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0159:00 still present?

Yes

GO to AH6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AH6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the PAM, the BCM and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AH7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AH7 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the BCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM.
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AI : U0164:00 (FCIMB (FRONT CONTROLS INTERFACE MODULE B) )

Normal Operation and Fault Conditions

The FCIMB communicates with the HVAC module over the CAN. If messages are missing or not received from the HVAC module, the HVAC controls may be inoperative.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
FCIMB U0164:00	Lost Communication With HVAC Control Module: No Sub Type Information	Sets in continuous memory when the FCIMB detects network messages are missing from the HVAC module for more than 5 seconds.

Possible Sources

Network communication concern
FCIMB concern
HVAC module

AI1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AI2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the HVAC module pass the network test?

Yes

GO to AI3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AI3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (FCIMB) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AI4

AI4 CHECK FOR NON-NETWORK HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the HVAC module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnosis and Testing in section 412-00.

GO to AI5

AI5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0164:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (FCIMB) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (FCIMB) setting the DTC.

Is DTC U0164:00 still present?

Yes

GO to AI6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the HVAC module and module in question ( FCIMB) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AI7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AI7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the module connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the HVAC module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HVAC module. REFER to the appropriate Removal and Installation procedure in section 412-00.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AJ : U0184:00 (APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The APIM, the DSP and the RACM communicate with the ACM over the CAN. If messages are missing or not received from the ACM, the display unit can be blank.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0184:00	Lost Communication With Radio: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the ACM for more than 5 seconds.
DSP U0184:00	Lost Communication With Radio: No Sub Type Information	Sets in continuous memory when the DSP detects network messages are missing from the ACM for more than 5 seconds.
RACM U0184:00	Lost Communication With Radio: No Sub Type Information	Sets in continuous memory when the RACM detects network messages are missing from the ACM for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
DSP concern
RACM concern
ACM

AJ1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AJ2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?

Yes

GO to AJ3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AJ3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM, DSP, RACM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AJ4

AJ4 CHECK FOR NON-NETWORK ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the ACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the ACM DTC Chart in this section.

GO to AJ5

AJ5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0184:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM, DSP, RACM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM, DSP, RACM) setting the DTC.

Is DTC U0184:00 still present?

Yes

GO to AJ6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the ACM and the module in question ( APIM, DSP, RACM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AJ7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AJ7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the ACM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AK : U0196:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the RACM over the CAN. If messages are missing or not received from the RACM, the commands from the RACM may be inoperative.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0196:00	Lost Communication With Entertainment Control Module-Rear "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the RACM for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
RACM

AK1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AK2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AK2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the RACM pass the network test?

Yes

GO to AK3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AK3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AK4

AK4 CHECK FOR NON-NETWORK RACM (REAR AUDIO CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the RACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the RACM DTC Chart in this section.

GO to AK5

AK5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0196:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0196:00 still present?

Yes

GO to AK6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AK6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the RACM and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AK7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AK7 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RACM connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RACM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM.
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AL : U0198:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM a communicates with the TCU over the CAN. If messages are missing or not received from the TCU, the SYNC Connect feature may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0198:00	Lost Communication With Telematic Control Module "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the TCU for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
TCU

AL1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AL2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AL2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?

Yes

GO to AL3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AL3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AL4

AL4 CHECK FOR NON-NETWORK TCU (TELEMATIC CONTROL UNIT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the TCU self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the TCU DTC Chart in this section.

GO to AL5

AL5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0198:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0198:00 still present?

Yes

GO to AL6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AL6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the TCU and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AL7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AL7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the TCU connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the TCU connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AM : U0208:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCME over the CAN. If messages are missing or not received from the SCME, the climate controlled seat may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0208:00	Lost Communication With "Seat Control Module A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SCME for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
SCME

AM1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AM2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AM2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SCME pass the network test?

Yes

GO to AM3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AM3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AM4

AM4 CHECK FOR NON-NETWORK SCME (FRONT SEAT CLIMATE CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SCME self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

GO to AM5

AM5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0208:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (APIM) in question setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0208:00 still present?

Yes

GO to AM6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AM6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SCME and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AM7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AM7 CHECK FOR CORRECT SCME (FRONT SEAT CLIMATE CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCME connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the SCME connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCME.
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AN : U0209:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCMB over the CAN. If messages are missing or not received from the SCMB, the climate controlled seat may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0209:00	Lost Communication With "Seat Control Module B": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SCMB for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
SCMB

AN1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AN2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AN2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SCMB pass the network test?

Yes

GO to AN3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AN3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AN4

AN4 CHECK FOR NON-NETWORK SCMB (PASSENGER FRONT SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SCMB self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

GO to AN5

AN5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0209:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (APIM) in question setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0209:00 still present?

Yes

GO to AN6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AN6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SCMB and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AN7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AN7 CHECK FOR CORRECT SCMB (PASSENGER FRONT SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCMB connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMB.
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AO : U020C:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the WACM over the CAN. If messages are missing or not received from the WACM, the wireless charging feature may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U020C:00	Lost Communication with Wireless Accessory Charging Module "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the WACM for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
WACM

AO1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AO2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AO2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the WACM pass the network test?

Yes

GO to AO3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AO3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AO4

AO4 CHECK FOR NON-NETWORK WACM (WIRELESS ACCESSORY CHARGING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the WACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Diagnosis and Testing).

GO to AO5

AO5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U020C:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question setting the DTC.

Is DTC U020C:00 still present?

Yes

GO to AO6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AO6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the WACM and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AO7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AO7 CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the WACM connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the WACM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new WACM.
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AP : U0214:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the RFA module over the CAN. If messages are missing or not received from the RFA module, the phone as a key feature may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0214:00	Lost Communication With Remote Function Actuation Module: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the RFA module for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
RFA module

AP1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AP2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AP2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the RFA module pass the network test?

Yes

GO to AP3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AP3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AP4

AP4 CHECK FOR NON-NETWORK RFA (REMOTE FUNCTION ACTUATOR) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the RFA module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the Diagnosis and Testing within the Phone As a Key section of the Workshop Manual.

GO to AP5

AP5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0214:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question setting the DTC.

Is DTC U0214:00 still present?

Yes

GO to AP6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AP6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the RFA module and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AP7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AP7 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RFA module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RFA module. REFER to the RFA module Removal and Installation procedure within the Phone As a Key section of the Workshop Manual.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AQ : U0232:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SODL over the CAN. If messages are missing or not received from the SODL, features such as the side detection settings or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0232:00	Lost Communication With Side Obstacle Detection Control Module "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SODL for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
SODL

AQ1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AQ2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AQ2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SODL pass the network test?

Yes

GO to AQ3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AQ3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AQ4

AQ4 CHECK FOR NON-NETWORK SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SODL self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).

GO to AQ5

AQ5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0232:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0232:00 still present?

Yes

GO to AQ6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AQ6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SODL and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AQ7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AQ7 CHECK FOR CORRECT SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) OPERATION

Ignition OFF.

Disconnect and inspect the SODL connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the SODL connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODL.
REFER to: Side Obstacle Detection Control Module (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AR : U0233:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SODR over the CAN. If messages are missing or not received from the SODR, features such as the side detection settings or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0233:00	Lost Communication With Side Obstacle Detection Control Module "B": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SODR for more than 5 seconds when the ignition is on.

Possible Sources

Network communication concern
APIM concern
SODR

AR1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AR2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AR2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SODR pass the network test?

Yes

GO to AR3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AR3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AR4

AR4 CHECK FOR NON-NETWORK SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SODR self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Blind Spot Information System (419-04 Side and Rear Vision, Diagnosis and Testing).

GO to AR5

AR5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0233:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0233:00 still present?

Yes

GO to AR6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AR6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SODR and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AR7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AR7 CHECK FOR CORRECT SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) OPERATION

Ignition OFF.

Disconnect and inspect the SODR connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the SODR connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODR.
REFER to: Side Obstacle Detection Control Module (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AS : U0238:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM and the RACM communicate with the audio DSP module over the CAN. If messages are missing or not received from the DSP, features such as the ANC may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the DSP for more than 5 seconds.
APIM U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the DSP for more than 5 seconds.
RACM U0238:00	Lost Communication With Digital Audio Control Module "D": No Sub Type Information	Sets in continuous memory when the RACM detects network messages are missing from the DSP for more than 5 seconds.

Possible Sources

Network communication concern
ACM concern
APIM concern
RACM concern
DSP

AS1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AS2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AS2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the DSP pass the network test?

Yes

GO to AS3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AS3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, RACM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AS4

AS4 CHECK FOR NON-NETWORK DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the DSP self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DSP DTC Chart in this section.

GO to AS5

AS5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0238:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, RACM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, RACM) setting the DTC.

Is DTC U0238:00 still present?

Yes

GO to AS6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AS6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the audio DSP module and the module in question ( ACM, APIM, RACM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AS7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AS7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the DSP connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AT : U023B:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the IPMB over the CAN. If messages are missing or not received from the IPMB, features such as the parking aid may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U023B:00	Lost Communication With Image Processing Module B: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the IPMB for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
IPMB

AT1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AT2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AT2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the IPMB pass the network test?

Yes

GO to AT3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AT3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AT4

AT4 CHECK FOR NON-NETWORK IPMB (IMAGE PROCESSING MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the IPMB self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Parking Aid (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Diagnosis and Testing).

GO to AT5

AT5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U023B:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U023B:00 still present?

Yes

GO to AT6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AT6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the IPMB and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AT7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AT7 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the IPMB connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the IPMB connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMB.
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AU : U0249:00 (FCIMB (FRONT CONTROLS INTERFACE MODULE B) )

Normal Operation and Fault Conditions

The FCIMB communicates with the RACM over the CAN. If messages are missing or not received from the RACM, the display is blank.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
FCIMB U0249:00	Lost Communication With Entertainment Control Module -Rear "B": No Sub Type Information	Sets in continuous memory when the FCIMB detects network messages are missing from the RACM for more than 5 seconds.

Possible Sources

Network communication concern
FCIMB concern
RACM

AU1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AU2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AU2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the RACM pass the network test?

Yes

GO to AU3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AU3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (FCIMB) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AU4

AU4 CHECK FOR NON-NETWORK RACM (REAR AUDIO CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the RACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the RACM DTC Chart in this section.

GO to AU5

AU5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0249:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (FCIMB) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (FCIMB) setting the DTC.

Is DTC U0249:00 still present?

Yes

GO to AU6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AU6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the RACM and the module in question ( FCIMB) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AU7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AU7 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RACM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM.
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AV : U024B:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCMG over the CAN. If messages are missing or not received from the SCMG, features such as the driver seat massage may not operate correctly

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U023B:00	Lost Communication With Image Processing Module B: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SCMG for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
SCMG

AV1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AV2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AV2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SCMG pass the network test?

Yes

GO to AV3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AV3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AV4

AV4 CHECK FOR NON-NETWORK SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SCMG self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

GO to AV5

AV5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U024B:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U024B:00 still present?

Yes

GO to AV6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AV6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SCMG and the module in question setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AV7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AV7 CHECK FOR CORRECT SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCMG connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMG connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMG.
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AW : U024C:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SCMH over the CAN. If messages are missing or not received from the SCMH, features such as the passenger seat massage may not operate correctly

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U024C:00	Lost Communication with Seat Control Module "H": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SCMH for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
SCMH

AW1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AW2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AW2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SCMH pass the network test?

Yes

GO to AW3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AW3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AW4

AW4 CHECK FOR NON-NETWORK SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SCMH self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

GO to AW5

AW5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U024C:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U024C:00 still present?

Yes

GO to AW6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AW6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SCMH and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AW7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AW7 CHECK FOR CORRECT SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCMH connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMH connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMH.
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AX : U0253:00 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIMB (FRONT CONTROLS INTERFACE MODULE B) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM, the DSP, the FCIMB, the RACM and the TCU communicate with the APIM over the CAN. If messages are missing or not received from the APIM, the display is blank.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the APIM for more than 5 seconds.
DSP U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	Sets in continuous memory when the DSP detects network messages are missing from the APIM for more than 5 seconds.
FCIMB U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	Sets in continuous memory when the FCIMB detects network messages are missing from the APIM for more than 5 seconds.
RACM U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	Sets in continuous memory when the RACM detects network messages are missing from the APIM for more than 5 seconds.
TCU U0253:00	Lost Communication With Accessory Protocol Interface Module: No Sub Type Information	Sets in continuous memory when the TCU detects network messages are missing from the APIM for more than 5 seconds.

Possible Sources

Network communication concern
ACM concern
DSP concern
FCIMB concern
RACM concern
TCU concern
APIM

AX1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AX2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AX2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the APIM pass the network test?

Yes

GO to AX3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AX3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, DSP, FCIMB, RACM, TCU) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AX4

AX4 CHECK FOR NON-NETWORK APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the APIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the APIM DTC Chart in this section.

GO to AX5

AX5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, DSP, FCIM, TCU) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, DSP, FCIMB, RACM, TCU) setting the DTC.

Is DTC U0253:00 still present?

Yes

GO to AX6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AX6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the APIM and the module in question ( ACM, DSP, FCIMB, RACM, TCU) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AX7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AX7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AY : U0256:00 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) )

Normal Operation and Fault Conditions

The ACM, the APIM and the DSP communicate with the FCIMB over the CAN. If messages are missing or not received from the FCIMB, button presses on the FCIMB may not operate correctly.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	Sets in continuous memory when the ACM detects network messages are missing from the FCIMB for more than 5 seconds when the ignition is on.
APIM U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the FCIMB for more than 5 seconds when the ignition is on.
DSP U0256:00	Lost Communication With Front Controls Interface Module "A": No Sub Type Information	Sets in continuous memory when the DSP detects network messages are missing from the FCIMB for more than 5 seconds when the ignition is on.

Possible Sources

Network communication concern
ACM concern
APIM concern
DSP concern
FCIMB

AY1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AY2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AY2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the FCIMB pass the network test?

Yes

GO to AY3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AY3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AY4

AY4 CHECK FOR NON-NETWORK FCIMB (FRONT CONTROLS INTERFACE MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the FCIMB self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the FCIMB DTC Chart in this section.

GO to AY5

AY5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0256:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM, APIM, DSP) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (ACM, APIM, DSP) setting the DTC.

Is DTC U0256:00 still present?

Yes

GO to AY6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AY6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the FCIMB and the module in question ( ACM, APIM, DSP) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AY7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AY7 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the FCIMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB.
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AZ : U0293:00 (APIM (SYNC MODULE) )

Normal Operation and Fault Conditions

The APIM communicates with the SOBDMC over the CAN. If messages are missing or not received from the SOBDMC, the high voltage battery information may not display.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0293:00	Lost Communication with Hybrid/EV Powertrain Control Module: No Sub Type Information	Sets in continuous memory when the APIM detects network messages are missing from the SOBDMC for more than 5 seconds.

Possible Sources

Network communication concern
APIM concern
SOBDMC

AZ1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AZ2

No	CLEAR the DTC. The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AZ2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the SOBDMC pass the network test?

Yes

GO to AZ3

No	REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

AZ3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AZ4

AZ4 CHECK FOR NON-NETWORK SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the SOBDMC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the appropriate Diagnosis and Testing in section 414-03.

GO to AZ5

AZ5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0293:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (APIM) setting the DTC.

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question (APIM) setting the DTC.

Is DTC U0293:00 still present?

Yes

GO to AZ6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AZ6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the SOBDMC and the module in question ( APIM) setting the DTC. If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AZ7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AZ7 CHECK FOR CORRECT SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) OPERATION

Ignition OFF.

Disconnect and inspect the SOBDMC connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SOBDMC. REFER to the TCM Removal and Installation procedure in the appropriate 307-01 section.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST BA : U3003:16 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIMB (FRONT CONTROLS INTERFACE MODULE B) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it falls below a threshold.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the ACM detects the supply voltage below 10 volts.
APIM U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the APIM detects the supply voltage below 10 volts.
DSP U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the DSP detects the supply voltage below 10 volts.
FCIMB U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the FCIMB detects the supply voltage below 10 volts.
RACM U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the RACM detects the supply voltage below 10 volts.
TCU U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage below 10 volts.

Possible Sources

Previous low battery voltage
Wiring, terminals, or connectors
Charging system concern
ACM
APIM
DSP
FCIMB
RACM
TCU

BA1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question setting the low voltage DTC.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question setting the low voltage DTC.

Is DTC U3003:16 still present?

Yes

GO to BA2

No	The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

BA2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.

Are any voltage-related Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE the charging system concern. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to BA3

BA3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE

Ignition OFF.

Check the battery condition and verify the battery is fully charged.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK and fully charged?

Yes

GO to BA4

No	DIAGNOSE the battery. REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

BA4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE

Ignition ON.

Measure and record the battery voltage.

For the suspect module, monitor the voltage supply PID:
- ACM:
  Access the ACM and monitor the VPWR (V) PID
- APIM:
  Access the APIM and monitor the VPWR (V) PID
- DSP:
  Access the DSP and monitor the VPWR (V) PID
- FCIMB:
  Access the FCIMB and monitor the VPWR (V) PID
- RACM:
  Access the RACM and monitor the VPWR (V) PID
- TCU:
  Access the TCU and monitor the VPWR (V) PID

Is the voltage reading within 0.2 volt of the recorded battery voltage?

Yes

For the ACM, GO to BA7
For the APIM, GO to BA8
For the DSP, GO to BA9
For the FCIMB, GO to BA10
For the RACM, GO to BA11
For the TCU, GO to BA12

GO to BA5

BA5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE

Ignition OFF.

Disconnect the suspect module.

Ignition ON.

Measure and record the battery voltage.

For the suspect module, measure:
Click to display connectors
ACM

Positive Lead Measurement / Action Negative Lead

C4240A-1 Ground

Click to display connectors
APIM

Positive Lead Measurement / Action Negative Lead

C2383A-1 Ground

Click to display connectors
DSP - 14 Speaker System

Positive Lead Measurement / Action Negative Lead

C4326C-4 Ground

C4326C-8 Ground

Click to display connectors
DSP - 28 Speaker System

Positive Lead Measurement / Action Negative Lead

C4452C-6 Ground

C4452C-12 Ground

Click to display connectors
FCIMB

Positive Lead Measurement / Action Negative Lead

C2402-1 Ground

Click to display connectors
RACM

Positive Lead Measurement / Action Negative Lead

C3077-6 Ground

Click to display connectors
TCU

Positive Lead Measurement / Action Negative Lead

C4803A-1 Ground

Is the voltage reading within 0.2 volt of the recorded battery voltage?

Yes

GO to BA6

No	REPAIR the circuit for high resistance.

BA6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE

For the suspect module, measure:
Click to display connectors
ACM

Positive Lead Measurement / Action Negative Lead

C4240A-1 C4240A-4

Click to display connectors
APIM

Positive Lead Measurement / Action Negative Lead

C2383A-1 C2383A-37

Click to display connectors
DSP - 14 Speaker System

Positive Lead Measurement / Action Negative Lead

C4326C-4 C4326C-1

C4326C-8 C4326C-5

Click to display connectors
DSP - 28 Speaker System

Positive Lead Measurement / Action Negative Lead

C4452C-6 C4452C-3

C4452C-12 C4452C-9

Click to display connectors
FCIMB

Positive Lead Measurement / Action Negative Lead

C2402-1 C2402-10

Click to display connectors
RACM

Positive Lead Measurement / Action Negative Lead

C3077-6 C3077-5

Click to display connectors
TCU

Positive Lead Measurement / Action Negative Lead

C4803A-1 C4803A-13

Is the voltage reading within 0.2 volt of the recorded battery voltage?

Yes

For the ACM, GO to BA7
For the APIM, GO to BA8
For the DSP, GO to BA9
For the FCIMB, GO to BA10
For the RACM, GO to BA11
For the TCU, GO to BA12

No	REPAIR the circuit for high resistance.

BA7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BA8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BA9 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the DSP connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BA10 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the FCIMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB.
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BA11 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RACM connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RACM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM.
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BA12 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the TCU connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the TCU connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST BB : U3003:17 (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIMB (FRONT CONTROLS INTERFACE MODULE B) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it rises above a threshold.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the ACM detects the supply voltage is greater than 16 volts.
APIM U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the APIM detects the supply voltage is greater than 16 volts.
DSP U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the DSP detects the supply voltage is greater than 16 volts.
FCIMB U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the FCIMB detects the supply voltage is greater than 16 volts.
RACM U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the RACM detects the supply voltage is greater than 16 volts.
TCU U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage is greater than 16 volts.

Possible Sources

Charging system concern
ACM
APIM
DSP
FCIMB
RACM
TCU

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

BB1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES

Ignition ON.

Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?

Yes

DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to BB2

BB2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING

Turn off all interior/exterior lights and accessories.

Start and run the engine at approximately 2,000 RPM for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?

Yes

DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to BB3

BB3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE)

Ignition OFF.

Ignition ON.

Using a diagnostic scan tool, clear the DTC for the suspect module.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the suspect module setting the high voltage DTC.

Is DTC U3003:17 still present?

Yes

For the ACM, GO to BB4
For the APIM, GO to BB5
For the DSP, GO to BB6
For the FCIMB, GO to BB7
For the RACM, GO to BB8
For the TCU, GO to BB9

No	The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

BB4 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BB5 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the APIM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BB6 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP.
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BB7 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the FCIMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB.
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BB8 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RACM connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RACM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM.
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

BB9 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the TCU connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the TCU connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU.
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST BC : BUS OFF

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U3000:88	Control Module: Bus Off	The module could not communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC.

Possible Sources

Intermittent fault with the CAN

BC1 DIAGNOSE THE INTERMITTENT FAULT

NOTE: The module was unable to communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC.

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question.

Wait at least 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question.

Verify the integrity of the connectors and wiring for the CAN.

Is the DTC still present?

Yes

DIAGNOSE the CAN in question.
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

No	The system is operating correctly at this time. VERIFY the integrity of the connectors and wiring for the CAN in question.

PINPOINT TEST BD : INVALID DATA RECEIVED

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
APIM U0415:00	Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information	Sets when the APIM receives invalid network data from the ABS module.
APIM U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	Sets when the APIM receives invalid network data from the BCM.
APIM U0423:00	Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information	Sets when the APIM receives invalid network data from the IPC.
APIM U0452:00	Invalid Data Received From Restraints Control Module: No Sub Type Information	Sets when the APIM receives invalid network data from the RCM.
DSP U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	Sets when the DSP receives invalid network data from the BCM.
FCIMB U0422:81	Invalid Data Received From Body Control Module: Invalid Serial Data Received	Sets when the FCIMB receives invalid network data from the BCM.
FCIMB U0554:00	Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information	Sets when the FCIMB receives invalid network data from the APIM.
TCU U0422:00	Invalid Data Received From Body Control Module: No Sub Type Information	Sets when the APIM receives invalid network data from the BCM.
TCU U0554:00	Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information	Sets when the TCU receives invalid network data from the APIM.

Possible Sources

Suspect module

BD1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA

Ignition ON.

Using a diagnostic scan tool, carry out the self-test for the module in question sending the invalid data.

Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?

Yes

DIAGNOSE the module sending the invalid data. REFER to the appropriate section in the Workshop Manual.

No	DIAGNOSE the observable symptom present. REFER to the appropriate Symptom chart in this section.

PINPOINT TEST BE : MODULE CONFIGURATION FAULT

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U201A:51	Control Module Main Calibration Data: Not Programmed	Sets due to an incomplete or incorrect ACM PMI.
ACM U201B:04	Control Module Calibration Data #2: System Internal Failures	Sets due to an incomplete or incorrect ACM PMI.
ACM U201B:51	Control Module Calibration Data #2: Not Programmed	Sets due to an incomplete or incorrect ACM PMI.
ACM U201B:55	Control Module Calibration Data #2: Not Configured	Sets due to an incomplete or incorrect ACM PMI.
ACM U2024:00	Control Module Cal-Config Data: No Sub Type Information	Sets due to an incomplete or incorrect ACM PMI.
ACM U2024:57	Control Module Cal-Config Data: Invalid/Incompatible Software Component	Sets due to an incomplete or incorrect ACM PMI.
ACM U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets due to an incomplete or incorrect ACM PMI.
ACM U2101:00	Control Module Configuration Incompatible: No Sub Type Information	Sets due to an incomplete or incorrect ACM PMI.
APIM U2017:45	Control Module Software #2: Program Memory Failure	Sets due to an incomplete or incorrect APIM PMI.
APIM U2017:51	Control Module Software #2: Not Programmed	Sets due to an incomplete or incorrect APIM PMI.
APIM U2017:52	Control Module Software #2: Not Activated	Sets due to an incomplete or incorrect APIM PMI.
APIM U2017:54	Control Module Software #2: Missing Calibration	Sets due to an incomplete or incorrect APIM PMI.
APIM U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets due to an incomplete or incorrect APIM PMI.
APIM U2101:00	Control Module Configuration Incompatible: No Sub Type Information	Sets due to an incomplete or incorrect APIM PMI.
DSP U201A:51	Control Module Main Calibration Data: Not Programmed	Sets due to an incomplete or incorrect DSP PMI.
DSP U2024:41	Control Module Cal-Config Data: General Checksum Failure	Sets due to an incomplete or incorrect DSP PMI.
DSP U2024:48	Control Module Cal-Config Data: Supervision Software Failure	Sets due to an incomplete or incorrect DSP PMI.
DSP U2024:51	Control Module Cal-Config Data: Not Programmed	Sets due to an incomplete or incorrect DSP PMI.
DSP U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets due to an incomplete or incorrect DSP PMI.
DSP U2101:00	Control Module Configuration Incompatible: No Sub Type Information	Sets due to an incomplete or incorrect DSP PMI.
FCIMB U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets due to an incomplete or incorrect FCIMB PMI.
RACM U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets due to an incomplete or incorrect RACM PMI.
RACM U2101:00	Control Module Configuration Incompatible: No Sub Type Information	Sets due to an incomplete or incorrect RACM PMI.
TCU U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets due to an incomplete or incorrect TCU PMI.
TCU U2101:00	Control Module Configuration Incompatible: No Sub Type Information	Sets due to an incomplete or incorrect TCU PMI.

Possible Sources

Incomplete or incorrect PMI

BE1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE

Ignition ON.

Using a diagnostic scan tool, carry out the PMI procedure for the suspect module as directed by the diagnostic scan tool.
- For the APIM, refer to
  REFER to: SYNC Module [APIM] Programming (415-00 Information and Entertainment System - General Information, General Procedures).

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the suspect module.

Using a diagnostic scan tool, carry out the self-test for the suspect module.

Is the original DTC still present?

Yes

For the APIM,

Click here to access Guided Routine (APIM).

Internet Explorer version 11 or greater is required to perform this Pinpoint Test. For all other modules, INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.

No	The repair is complete.

PINPOINT TEST BF : INTERNAL MODULE FAILURE

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
ACM U3000:41	Control Module: General Checksum Failure	Sets when the ACM detects an internal fault.
ACM U3000:42	Control Module: General Memory Failure	Sets when the ACM detects an internal fault.
ACM U3000:92	Control Module: Performance Or Incorrect Operation	Sets when the ACM detects an internal fault.
ACM U3000:94	Control Module: Unexpected Operation	Sets when the ACM detects an internal fault.
ACM U3000:96	Control Module: Component Internal Failure	Sets when the ACM detects an internal fault.
APIM U3000:04	Control Module: System Internal Failures	Sets when the APIM detects an internal fault.
APIM U3000:09	Control Module: Component Failures	Sets when the APIM detects an internal fault.
APIM U3000:41	Control Module: General Checksum Failure	Sets when the APIM detects an internal fault.
DSP U3000:41	Control Module: General Checksum Failure	Sets when the DSP detects an internal fault.
DSP U3000:42	Control Module: General Memory Failure	Sets when the DSP detects an internal fault.
FCIMB B10B8:63	Push Buttons: Circuit/Component Protection Time-Out	Sets when the FCIMB detects an internal fault.
FCIMB U3000:49	Control Module: Internal Electronic Failure	Sets when the FCIMB detects an internal fault.
RACM U0162:00	Lost Communication With Navigation Display Module: No Sub Type Information	Sets when the RACM detects an internal fault.
RACM U3000:41	Control Module: General Checksum Failure	Sets when the RACM detects an internal fault.
RACM U3000:42	Control Module: General Memory Failure	Sets when the RACM detects an internal fault.
SIMA B137F:71	Steering Wheel Left Switch Pack: Actuator Stuck	Sets when the SIMA detects a stuck button on the left upper steering wheel switch.
TCU U3000:04	Control Module: System Internal Failures	Sets when the TCU detects an internal fault.
TCU U3000:09	Control Module: Component Failures	Sets when the TCU detects an internal fault.
TCU U3000:41	Control Module: General Checksum Failure	Sets when the TCU detects an internal fault.
TCU U3000:42	Control Module: General Memory Failure	Sets when the TCU detects an internal fault.
TCU U3000:52	Control Module: Not Activated	Sets when the TCU detects an internal fault.
TCU U3000:56	Control Module: Invalid/Incompatible Configuration	Sets when the TCU detects an internal fault.

Possible Sources

Suspect module

BF1 INSTALL A NEW SUSPECT MODULE

Ignition OFF.

NOTE: For the APIM, carry out the guided diagnostic first.
Click here to access Guided Routine (APIM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS and follow the instructions for the applicable TSB, GSB, SSM or FSA.

No	The repair is complete.

Description and Operation - Information and Entertainment System - System Operation and Component Description

System Operation System Diagram NOTE: The system diagrams include all component options. Some components may not be equipped on the vehicle. Audio System - 10 Speaker System Item Description 1 APIM 2 AM/ FM1 Antenna Amplifier 3 Display Unit 4 GWM 5 BCM 6 ACM 7 FCIMB 8 IPC 9 GPS/Satellite Radio Antenna 10 RACM 11 Speakers 12 PCM 13 Audio/SYNC Switches 14 SIMA 15 FM2 Antenna Amplifier 16 SCCM 17 Subwoofer Amplifier and Speaker Audio System - 14 or 28 Speaker System Item Description 1 APIM 2 Display Unit 3 GWM 4 BCM 5 ACM 6 FM2 Antenna Amplifier 7 DSP 8 IPC 9 Satellite/GPS Antenna 10 AM/ FM1 Antenna Amplifier 11 ANC Microphones 12 PCM 13 Speakers 14 SCCM 15 Audio/SYNC Switches 16 SIMA 17 FCIMB SYNC System Item Description 1 Roof Antenna 2 APIM 3 Display Unit 4 Media Hub 5 Microphone 6 ABS Module 7 RCM 8 GWM 9 BCM 10 PCM 11 IPC 12 FCIMB 13 ACM 14 Wi-Fi Device 15 Bluetooth Device 16 DSP 17 ACM 18 Speakers 19 TCU 20 TCU Antenna 21 Wi-Fi Device 22 SCCM 23 Audio/SYNC Switches 24 SIMA 25 GPS/Satellite Radio Antenna 26 Cellular Antenna Network Message Chart ACM Network Input Messages Broadcast Message Originating Module Message Purpose Accelerator pedal position PCM Uses the accelerator pedal position percentage for the ANC system operation...

General Procedures - Bezel Diagnostics

Check NOTE: If there is a concern with one of the following components and Bezel Diagnostics cannot be accessed, obtain the module part number by referencing the label attached to the module...

Other information:

Lincoln Aviator 2020-2024 Owners Manual: Adjusting the Steering Wheel - Vehicles With: Power Adjustable Steering Column

WARNING: Do not adjust the steering wheel when your vehicle is moving. Note: Make sure that you are sitting in the correct position. Use the control on the side of the steering column to adjust the position. To adjust: Tilt: Press the top or bottom of the control...

Lincoln Aviator 2020-2024 Service Manual: Removal and Installation - Toe Link

Special Tool(s) / General Equipment Vehicle/Axle Stands Removal NOTICE: Suspension fasteners are critical parts that affect the performance of vital components and systems. Failure of these fasteners may result in major service expense...

Activating Intelligent Access

The intelligent access key must be within 3 ft (1 m) of the door or luggage compartment you intend to lock or unlock.

At a Door

Electronic door handles are on each door. Gently depress the switch inside the exterior door handle to unlock and open the door. An unlock symbol illuminates on the door window trim indicating your vehicle is unlocked.

Lincoln Aviator. Activating Intelligent Access

Lincoln Aviator: Information and Entertainment System - General Information / Diagnosis and Testing - Information and Entertainment System

Description and Operation - Information and Entertainment System - System Operation and Component Description

General Procedures - Bezel Diagnostics

Other information:

Lincoln Aviator 2020-2024 Owners Manual: Adjusting the Steering Wheel - Vehicles With: Power Adjustable Steering Column

Lincoln Aviator 2020-2024 Service Manual: Removal and Installation - Toe Link

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