Lincoln Aviator 2020-2024 Service Manual / Electrical / Climate Control System / Climate Control System - General Information / Diagnosis and Testing - Climate Control System
Lincoln Aviator: Climate Control System - General Information / Diagnosis and Testing - Climate Control 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 |
|---|---|---|---|
| ACCM | B11EE:19 | A/C Compressor: Circuit Current Above Threshold | GO to Pinpoint Test AJ |
| ACCM | B11EE:41 | A/C Compressor: General Checksum Failure | GO to Pinpoint Test AS |
| ACCM | B11EE:4B | A/C Compressor: Over Temperature | GO to Pinpoint Test AJ |
| ACCM | B11EE:92 | A/C Compressor: Performance or Incorrect Operation | GO to Pinpoint Test AJ |
| ACCM | P0562:00 | System Voltage Low: No Sub Type Information | GO to Pinpoint Test AJ |
| ACCM | P0563:00 | System Voltage High: No Sub Type Information | GO to Pinpoint Test AJ |
| ACCM | P0AFA:16 | Hybrid/EV Battery System Voltage Low: Circuit Voltage Below Threshold | GO to Pinpoint Test AJ |
| ACCM | P0AFB:17 | Hybrid/EV Battery System Voltage High: Circuit Voltage Above Threshold | GO to Pinpoint Test AJ |
| ACCM | P0AFB:1C | Hybrid/EV Battery System Voltage High: Circuit Voltage Out of Range | GO to Pinpoint Test AJ |
| ACCM | U0001:88 | High Speed CAN Communication Bus: Bus Off | GO to Pinpoint Test AP |
| ACCM | U0100:00 | Lost Communication with ECM/PCM "A": No Sub Type Information | GO to Pinpoint Test AL |
| ACCM | U0111:00 | Lost Communication With Battery Energy Control Module "A": No Sub Type Information | GO to Pinpoint Test AM |
| ACCM | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test P |
| ACCM | U3000:04 | Control Module: System Internal Failure | GO to Pinpoint Test AS |
| ACCM | U3000:42 | Control Module: General Memory Failure | GO to Pinpoint Test AS |
| ACCM | U3000:49 | Control Module: Internal Electronic Failure | GO to Pinpoint Test AS |
| BCMC | B3A01:00 | A/C Refrigerant Distribution Valve Actuator "C" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AV |
| BCMC | B3A02:00 | A/C Refrigerant Distribution Valve Actuator "C" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AV |
| BCMC | B3A03:00 | A/C Refrigerant Distribution Valve Actuator "C" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AV |
| BCMC | P2611:00 | A/C Refrigerant Distribution Valve "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AT |
| BCMC | P2612:00 | A/C Refrigerant Distribution Valve "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AT |
| BCMC | P2613:00 | A/C Refrigerant Distribution Valve "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AT |
| BCMC | P2CFC:00 | A/C Clutch Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| BCMC | P2CFD:00 | A/C Clutch Control Circuit Low: No Sub Type Information | GO to Pinpoint Test B |
| BCMC | P2CFE:00 | A/C Clutch Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| BCMC | P2E62:00 | Engine Coolant Bypass Valve "E" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AU |
| BCMC | P2E63:00 | Engine Coolant Bypass Valve "E" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AU |
| BCMC | P2E64:00 | Engine Coolant Bypass Valve "E" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AU |
| HVAC | B102E:11 | Air Quality Sensor: Circuit Short To Ground | GO to Pinpoint Test Y |
| HVAC | B102E:15 | Air Quality Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test Y |
| HVAC | B102E:92 | Air Quality Sensor: Performance or Incorrect Operation | GO to Pinpoint Test Y |
| HVAC | B1081:07 | Left Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test G |
| HVAC | B1081:11 | Left Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test G |
| HVAC | B1081:12 | Left Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test G |
| HVAC | B1081:13 | Left Temperature Damper Motor: Circuit Open | GO to Pinpoint Test G |
| HVAC | B1082:07 | Right Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test H |
| HVAC | B1082:11 | Right Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test H |
| HVAC | B1082:12 | Right Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test H |
| HVAC | B1082:13 | Right Temperature Damper Motor: Circuit Open | GO to Pinpoint Test H |
| HVAC | B1083:07 | Recirculation Damper Motor: Mechanical Failure | GO to Pinpoint Test I |
| HVAC | B1083:11 | Recirculation Damper Motor: Circuit Short To Ground | GO to Pinpoint Test I |
| HVAC | B1083:12 | Recirculation Damper Motor: Circuit Short To Battery | GO to Pinpoint Test I |
| HVAC | B1083:13 | Recirculation Damper Motor: Circuit Open | GO to Pinpoint Test I |
| HVAC | B1086:07 | Air Distribution Damper Motor: Mechanical Failure | GO to Pinpoint Test J |
| HVAC | B1086:11 | Air Distribution Damper Motor: Circuit Short To Ground | GO to Pinpoint Test J |
| HVAC | B1086:12 | Air Distribution Damper Motor: Circuit Short To Battery | GO to Pinpoint Test J |
| HVAC | B1086:13 | Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test J |
| HVAC | B10AF:11 | Blower Fan Relay: Circuit Short To Ground | GO to Pinpoint Test N |
| HVAC | B10AF:15 | Blower Fan Relay: Circuit Short To Battery or Open | GO to Pinpoint Test N |
| HVAC | B10AF:15 | Blower Fan Relay: Circuit Short To Battery or Open | GO to Pinpoint Test O |
| HVAC | B10B3:11 | Right Panel Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AA |
| HVAC | B10B3:15 | Right Panel Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test AA |
| HVAC | B10B4:11 | Right Floor Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AA |
| HVAC | B10B4:15 | Right Floor Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test AA |
| HVAC | B10B5:11 | Left Panel Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AA |
| HVAC | B10B5:15 | Left Panel Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test AA |
| HVAC | B10B6:11 | Left Floor Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AA |
| HVAC | B10B6:15 | Left Floor Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test AA |
| HVAC | B10B7:11 | Rear Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AG |
| HVAC | B10B7:15 | Rear Air Discharge Temperature: Circuit Short To Battery Or Open | GO to Pinpoint Test AG |
| HVAC | B10B9:12 | Blower Control: Circuit Short To Battery | GO to Pinpoint Test N |
| HVAC | B10B9:14 | Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test N |
| HVAC | B10BA:12 | Rear Blower Control: Circuit Short To Battery | GO to Pinpoint Test AX |
| HVAC | B10BA:14 | Rear Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test AX |
| HVAC | B11E3:07 | Rear HVAC Damper Motor: Mechanical Failure | GO to Pinpoint Test AG |
| HVAC | B11E3:11 | Rear HVAC Damper Motor: Circuit Short To Ground | GO to Pinpoint Test AG |
| HVAC | B11E3:12 | Rear HVAC Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AG |
| HVAC | B11E3:13 | Rear HVAC Damper Motor: Circuit Open | GO to Pinpoint Test AG |
| HVAC | B11E4:07 | Rear Air Distribution Damper Motor: Mechanical Failure | GO to Pinpoint Test AF |
| HVAC | B11E4:11 | Rear Air Distribution Damper Motor: Circuit Short to Ground | GO to Pinpoint Test AF |
| HVAC | B11E4:12 | Rear Air Distribution Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AF |
| HVAC | B11E4:13 | Rear Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test AF |
| HVAC | B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test G |
| HVAC | B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test G |
| HVAC | B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test H |
| HVAC | B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test H |
| HVAC | B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test J |
| HVAC | B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test J |
| HVAC | B11EC:12 | Rear HVAC Blower Control Input: Circuit Short To Battery | GO to Pinpoint Test AD |
| HVAC | B11EC:14 | Rear HVAC Blower Control Input: Circuit Short To Ground or Open | GO to Pinpoint Test AD |
| HVAC | B11F0:11 | Air Intake Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test I |
| HVAC | B11F0:15 | Air Intake Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test I |
| HVAC | B1364:07 | Left Rear Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test AH |
| HVAC | B1364:11 | Left Rear Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test AH |
| HVAC | B1364:12 | Left Rear Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AH |
| HVAC | B1364:13 | Left Rear Temperature Damper Motor: Circuit Open | GO to Pinpoint Test AH |
| HVAC | B1379:11 | Rear Cabin Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test BB |
| HVAC | B1379:15 | Rear Cabin Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test BB |
| HVAC | B14D3:11 | Left Rear Panel Discharge Sensor: Circuit Short To Ground | GO to Pinpoint Test BA |
| HVAC | B14D3:15 | Left Rear Panel Discharge Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test BA |
| HVAC | B14D4:11 | Left Rear Floor Discharge Sensor: Circuit Short To Ground | GO to Pinpoint Test BA |
| HVAC | B14D4:15 | Left Rear Floor Discharge Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test BA |
| HVAC | B1580:11 | Console Airflow Shut Off Door Position Sensor: Circuit Short To Ground | GO to Pinpoint Test AZ |
| HVAC | B1580:15 | Console Airflow Shut Off Door Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test AZ |
| HVAC | B1581:07 | Console Airflow Shut Off Door Damper Motor: Mechanical Failure | GO to Pinpoint Test AZ |
| HVAC | B1581:11 | Console Airflow Shut Off Door Damper Motor: Circuit Short To Ground | GO to Pinpoint Test AZ |
| HVAC | B1581:12 | Console Airflow Shut Off Door Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AZ |
| HVAC | B1581:13 | Console Airflow Shut Off Door Damper Motor: Circuit Open | GO to Pinpoint Test AZ |
| HVAC | B1582:11 | Left Panel Discharge Sensor #3: Circuit Short To Ground | GO to Pinpoint Test BA |
| HVAC | B1582:15 | Left Panel Discharge Sensor #3: Circuit Short To Battery or Open | GO to Pinpoint Test BA |
| HVAC | B158C:11 | Air Distribution Damper Position Sensor #3: Circuit Short To Ground | GO to Pinpoint Test AF |
| HVAC | B158C:15 | Air Distribution Damper Position Sensor #3: Circuit Short To Battery or Open | GO to Pinpoint Test AF |
| HVAC | B158F:11 | Left HVAC Damper Position Sensor #3: Circuit Short To Ground | GO to Pinpoint Test AH |
| HVAC | B158F:15 | Left HVAC Damper Position Sensor #3: Circuit Short To Battery or Open | GO to Pinpoint Test AH |
| HVAC | B159B:11 | Cabin Temperature Sensor #3: Circuit Short To Ground | GO to Pinpoint Test BB |
| HVAC | B159B:15 | Cabin Temperature Sensor #3: Circuit Short To Battery or Open | GO to Pinpoint Test BB |
| HVAC | B159E:07 | Air Distribution Damper Motor #3: Mechanical Failure | GO to Pinpoint Test AF |
| HVAC | B159E:11 | Air Distribution Damper Motor #3: Circuit Short To Ground | GO to Pinpoint Test AF |
| HVAC | B159E:12 | Air Distribution Damper Motor #3: Circuit Short To Battery | GO to Pinpoint Test AF |
| HVAC | B159E:13 | Air Distribution Damper Motor #3: Circuit Open | GO to Pinpoint Test AF |
| HVAC | B1A61:11 | Cabin Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test E |
| HVAC | B1A61:15 | Cabin Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test E |
| HVAC | B1A63:11 | Right Solar Sensor: No Sub Type Information | GO to Pinpoint Test Z |
| HVAC | B1A63:15 | Right Solar Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test Z |
| HVAC | B1A64:11 | Left Solar Sensor: No Sub Type Information | GO to Pinpoint Test Z |
| HVAC | B1A64:15 | Left Solar Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test Z |
| HVAC | B1A69:11 | Humidity Sensor: Circuit Short To Ground | GO to Pinpoint Test E |
| HVAC | B1A69:15 | Humidity Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test E |
| HVAC | B1B71:11 | Evaporator Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test F |
| HVAC | B1B71:15 | Evaporator Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test F |
| HVAC | B1B7D:11 | Rear Air Distribution Actuator: Circuit Short to Ground | GO to Pinpoint Test AF |
| HVAC | B1B7D:15 | Rear Air Distribution Actuator: Circuit Short To Battery or Open | GO to Pinpoint Test AF |
| HVAC | C1B14:11 | Sensor Supply Voltage A: Circuit Short to Ground | GO to Pinpoint Test AC |
| HVAC | C1B14:12 | Sensor Supply Voltage A: Circuit Short to Battery | GO to Pinpoint Test AC |
| HVAC | P24AE:09 | Particulate Matter Sensor Circuit: Component Failure | GO to Pinpoint Test AW |
| HVAC | P24AE:8F | Particulate Matter Sensor Circuit: Erratic | GO to Pinpoint Test AW |
| HVAC | P24AE:92 | Particulate Matter Sensor Circuit: Performance or Incorrect Operation | GO to Pinpoint Test AW |
| HVAC | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test P |
| HVAC | U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub-Type Information | GO to Pinpoint Test Q |
| HVAC | U0165:00 | Lost Communication With HVAC Control Module - Rear: No Sub Type Information | GO to Pinpoint Test S |
| HVAC | U0249:00 | Lost Communication With Entertainment Control Module -Rear "B": No Sub Type Information | GO to Pinpoint Test T |
| HVAC | U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | GO to Pinpoint Test V |
| HVAC | U025D:00 | Lost Communication With Front Controls Interface Module "B": No Sub Type Information | GO to Pinpoint Test W |
| HVAC | U0401:00 | Invalid Data Received from ECM/PCM A: No Sub-Type Information | GO to Pinpoint Test AQ |
| HVAC | U0401:82 | Invalid Data Received from ECM/PCM A: Alive / Sequence Counter Incorrect / Not Updated | GO to Pinpoint Test AQ |
| HVAC | U0422:68 | Invalid Data Received from Body Control Module: Event Information | GO to Pinpoint Test AQ |
| HVAC | U0422:81 | Invalid Data Received from Body Control Module: Invalid Serial Data Received | GO to Pinpoint Test AQ |
| HVAC | U0452:00 | Invalid Data Received From Restraints Control Module: No Sub Type Information | GO to Pinpoint Test AQ |
| HVAC | U054A:68 | Invalid Data Received From Entertainment Control Module-Rear "B": Event Information | GO to Pinpoint Test AQ |
| HVAC | U055E:68 | Invalid Data Received From Front Controls Interface Module "B": Event Information | GO to Pinpoint Test AQ |
| HVAC | U1000:00 | Solid State Driver Protection Active -Driver Disabled: No Sub Type Information | GO to Pinpoint Test X |
| HVAC | U2024:51 | Control Module Cal-Config Data: Not Programmed | GO to Pinpoint Test AR |
| HVAC | U2100:00 | Initial Configuration Not Complete: No Sub Type Information | GO to Pinpoint Test AR |
| HVAC | U3000:49 | Control Module: Internal Electronic Failure | GO to Pinpoint Test AS |
| HVAC | U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test AN |
| HVAC | U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test AO |
| PCM | P0532:00 | A/C Refrigerant Pressure Sensor A Circuit Low: No Sub Type Information | GO to Pinpoint Test A |
| PCM | P0533:00 | A/C Refrigerant Pressure Sensor A Circuit High: No Sub Type Information | GO to Pinpoint Test A |
| PCM | P0645:00 | A/C Clutch Relay Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| PCM | P06A0:00 | Variable Compressor Control Circuit: No Sub Type Information | GO to Pinpoint Test C |
| PCM | P1464:00 | A/C Demand Out Of Self Test Range: No Sub Type Information | GO to Pinpoint Test M |
| PCM | P193E:00 | A/C Clutch Request Signal: No Sub Type Information | GO to Pinpoint Test AB |
| PCM | P2183:00 | Engine Coolant Temperature Sensor 2: Circuit Range/Performance | GO to Pinpoint Test BC |
| PCM | P2184:00 | Engine Coolant Temperature Sensor 2: Circuit Low | GO to Pinpoint Test BC |
| PCM | P2185:00 | Engine Coolant Temperature Sensor 2: Circuit High | GO to Pinpoint Test BC |
| PCM | P2186:00 | Engine Coolant Temperature Sensor 2: Circuit Intermittent/Erratic | GO to Pinpoint Test BC |
| PCM | P2600:00 | Coolant Pump "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2601:00 | Coolant Pump "A" Control Circuit Performance/Stuck Off: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2602:00 | Coolant Pump "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2603:00 | Coolant Pump "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P26BE:00 | Engine Coolant Bypass Valve "D" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test BH |
| PCM | P26BF:00 | Engine Coolant Bypass Valve "D" Control Circuit High: No Sub Type Information | GO to Pinpoint Test BH |
| RHVAC | B10B8:63 | Push Buttons: Circuit / Component Protection Time-Out | GO to Pinpoint Test AI |
| RHVAC | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test P |
| RHVAC | U0164:00 | Lost Communication With HVAC Control Module: No Sub Type Information | GO to Pinpoint Test R |
| RHVAC | U0247:00 | Lost Communication With Seat Control Module "F": No Sub Type Information | GO to Pinpoint Test U |
| RHVAC | U0422:68 | Invalid Data Received From Body Control Module: Event Information | GO to Pinpoint Test AQ |
| RHVAC | U3000:41 | Control Module: General Checksum Failure | GO to Pinpoint Test AS |
| RHVAC | U3000:42 | Control Module: General Memory Failure | GO to Pinpoint Test AS |
| RHVAC | U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test AN |
| RHVAC | U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test AO |
| SOBDMC | P01EB:96 | Engine Coolant Heater "A" Control Circuit Performance: Component Internal Failure | GO to Pinpoint Test AK |
| SOBDMC | P0531:00 | A/C Refrigerant Pressure Sensor "A" Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test A |
| SOBDMC | P0534:00 | A/C Refrigerant Charge Loss: No Sub Type Information | GO to Pinpoint Test A |
| SOBDMC | P0D6D:00 | A/C Compressor Motor Voltage "A" Low: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P0D6F:00 | A/C Compressor Motor Current High: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P0D71:00 | A/C Compressor Control Module Internal Temperature Sensor Performance: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2611:00 | A/C Refrigerant Distribution Valve "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AT |
| SOBDMC | P2612:00 | A/C Refrigerant Distribution Valve "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AT |
| SOBDMC | P2613:00 | A/C Refrigerant Distribution Valve "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AT |
| SOBDMC | P26FD:00 | A/C Compressor Internal Control Module Performance: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2D41:00 | A/C Compressor Motor Voltage "B" Performance: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2D42:00 | A/C Compressor Motor Voltage "B" Low: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2D44:00 | A/C Compressor Motor Performance: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2DA4:00 | Coolant Heater "A" Internal Control Module Performance: No Sub Type Information | GO to Pinpoint Test AK |
| SOBDMC | P2DA5:00 | Coolant Heater "A" Supply Voltage Circuit: No Sub Type Information | GO to Pinpoint Test AK |
| SOBDMC | P2DA6:00 | Coolant Heater "A" Over Temperature: No Sub Type Information | GO to Pinpoint Test AK |
| SOBDMC | P2DA7:00 | Coolant Heater "A" Internal Control Module Control Module System Voltage: No Sub Type Information | GO to Pinpoint Test AK |
| SOBDMC | P2E62:00 | Engine Coolant Bypass Valve "E" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AU |
| SOBDMC | P2E63:00 | Engine Coolant Bypass Valve "E" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AU |
| SOBDMC | P2E64:00 | Engine Coolant Bypass Valve "E" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AU |
| SOBDMC | U069E:81 | Lost Communication With Coolant Heater "A": Invalid Serial Data Received | GO to Pinpoint Test AK |
| SOBDMC | U069E:87 | Lost Communication With Coolant Heater "A": Missing Messages | GO to Pinpoint Test AK |
Global Customer Symptom Code (GCSC) 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).
Global Customer Symptom Code Chart
| Customer Symptom | Action |
|---|---|
| Comfort & Entertainment > Climate Control > Function/Operation > Blows Cold | GO to Pinpoint Test K |
| Comfort & Entertainment > Climate Control > Function/Operation > Blows Warm | GO to Pinpoint Test L |
| Comfort & Entertainment > Climate Control > Function/Operation > Blows Warm | GO to Pinpoint Test BD |
| Comfort & Entertainment > Climate Control > Function/Operation > Blows Warm | GO to Pinpoint Test BG |
| Comfort & Entertainment > Climate Control > Function/Operation > Inaccurate | GO to Pinpoint Test BE |
| Comfort & Entertainment > Climate Control > Rear Control > Inaccurate | GO to Pinpoint Test AE |
| Comfort & Entertainment > Climate Control > Rear Control > Inaccurate | GO to Pinpoint Test AY |
| Comfort & Entertainment > Noise > Climate Control > Always | GO to Pinpoint Test BF |
| Safe & Secure > Smoke/Odor > Underhood > Hot | GO to Pinpoint Test BD |
Symptom Charts
Symptom Chart – Climate Control Systems
NOTE: Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the Powertrain Control Module (PCM) 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).
| Condition | Actions |
|---|---|
| A module does not respond to the diagnostic scan tool |
REFER to: Communications Network (418-00) . |
| Externally Controlled Variable Displacement Compressor (EVDC) poor performance/does not operate correctly | GO to Pinpoint Test C |
| Insufficient Air Conditioning (A/C) cooling | GO to Pinpoint Test BG |
| The A/C is always on — A/C mode always commanded on NON HEV | GO to Pinpoint Test M |
| The A/C is inoperative NON HEV | GO to Pinpoint Test L |
| The A/C pressure relief valve is discharging | GO to Pinpoint Test BD |
| ACCM ELECTRIC A/C COMPRESSOR INOPERATIVE | GO to Pinpoint Test AJ |
| The air inlet door is inoperative | GO to Pinpoint Test I |
| The front blower motor is inoperative | GO to Pinpoint Test N |
| The front blower motor does not operate correctly | GO to Pinpoint Test O |
| The rear blower motor is inoperative | GO to Pinpoint Test AD |
| The rear blower motor does not operate correctly | GO to Pinpoint Test AE |
| The second row blower motor is inoperative | GO to Pinpoint Test AX |
| The second row blower motor does not operate correctly | GO to Pinpoint Test AY |
| Incorrect or erratic direction of airflow from outlets on front system | GO to Pinpoint Test J |
| Incorrect or erratic direction of airflow from outlets on the rear temperature control | GO to Pinpoint Test AF |
| Insufficient, erratic or no heat | GO to Pinpoint Test K |
| Reduced outlet airflow | GO to Pinpoint Test BE |
| The temperature control is inoperative or does not operate correctly – driver side | GO to Pinpoint Test G |
| The temperature control is inoperative or does not operate correctly – passenger side | GO to Pinpoint Test H |
| The rear temperature door is inoperative or does not operate correctly | GO to Pinpoint Test AH |
| NVH when A/C is on | GO to Pinpoint Test BF |
Pinpoint Tests
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PINPOINT TEST A : P0531, P0532, P0533, P0534.jpg){kind=icon}
PINPOINT TEST A : P0531, P0532, P0533, P0534|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Pressure Transducer, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
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| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||
| A1 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) PRESSURE SENSOR PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE SET READINGS | ||||||||||||||||
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NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range
Are the pressure values of the manifold gauge set and the PID, dependent upon the ambient temperatures, within ± 103 kPa (15 psi)?
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| A2 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
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| A3 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||
Are the resistances greater than 10,000 ohms?
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| A4 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||
Are the resistances less than 3 ohms?
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| A5 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||
| A6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||
Is the concern still present?
|
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Click here to access Guided Routine (PCM)..png)
Internet Explorer version 11 or greater is required to perform this Pinpoint Test. PINPOINT TEST B : P0645:00, P2CFC:00, P2CFD:00, P2CFE:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions When A/C is requested and A/C line pressures allow, the PCM grounds the clutch control circuit that is hardwired to the A/C clutch control input processing in the BCMC. For additional information on A/C Request, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||
| B1 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | |||||||||||||||
Is any voltage present?
|
|||||||||||||||
| B2 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR A SHORT TO GROUND | |||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||
| B3 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR AN OPEN | |||||||||||||||
Is the resistance less than 3 ohms?
|
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| B4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | |||||||||||||||
Is the concern still present?
|
|||||||||||||||
| B5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||||
Is the concern still present?
|
PINPOINT TEST C : P06A0|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The externally controlled variable displacement compressor is electronically controlled by the PCM. The PCM
pulse width modulates the ground to the externally controlled variable
displacement compressor to change the displacement of the A/C compressor. REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||
| C1 EXTERNALLY CONTROLLED VARIABLE DISPLACEMENT COMPRESSOR (EVDC) PERFORMANCE CHECK WITH THE AC COMPRESSOR ELECTRONIC CONTROL VALVE TESTER | ||||||||||
|
NOTE: The following pinpoint test step uses the EVDC®100 Electronic Variable Displacement A/C Compressor Control Valve Tester, available on the Ford Rotunda website. NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the suction low side pressure decrease or the high side pressure increase?
|
||||||||||
| C2 CHECK FOR VOLTAGE TO THE A/C (AIR CONDITIONING) COMPRESSOR CONTROL SOLENOID | ||||||||||
Is the voltage greater than 11 volts?
|
||||||||||
| C3 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| C4 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR A SHORT TO GROUND | ||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||
| C5 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR AN OPEN | ||||||||||
Is the resistance less than 3 ohms?
|
||||||||||
| C6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST D : P2600:00, P2601:00, P2602:00, P2603:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin Heater Coolant Pump, REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||||||||||||||||||
| D1 CHECK THE COOLANT LEVEL | ||||||||||||||||||||||
|
NOTE: Allow the engine drivetrain to cool before checking the coolant level.
Is the coolant level within specifications?
|
||||||||||||||||||||||
| D2 CHECK FOR AND CLEAR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) AND COMMAND THE CABIN HEATER COOLANT PUMP ON | ||||||||||||||||||||||
Is DTC P2600, P2601, P2602 or P2603 received or is the coolant pump not running?
|
||||||||||||||||||||||
| D3 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||
| D4 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| D5 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| D6 CLEAR ALL PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES | ||||||||||||||||||||||
Does the cabin coolant pump turn on?
|
||||||||||||||||||||||
| D7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST E : B1A61:11, B1A61;15, B1A69:11, B1A69:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions In-Vehicle Temperature and Humidity Sensor (located in headliner above the rear view mirror area), REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||
| E1 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||
| E2 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||
| E3 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR AN OPEN CIRCUIT | ||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||
| E4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST F : B1B71:11, B1B71:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Evaporator Temperature Sensor, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||
| F1 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| F2 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| F3 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| F4 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| F5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST G : B1081:07, B1081:11, B1081:12, B1081:13, B11E5:11, B11E5:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Driver Temperature Door Actuator, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the temperature door until the door reaches both internal stops in the HVAC case. If the temperature blend door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be the expected temperature. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| G1 CHECK THE DRIVER TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| G2 CHECK THE DRIVER TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| G3 CHECK THE DRIVER TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| G4 CHECK THE DRIVER TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| G5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| G6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST H : B1082:07, B1082:11, B1082:12, B1082:13, B11E6:11, B11E6:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Passenger Temperature Door Actuator, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the temperature door until the door reaches both internal stops in the HVAC case. If the temperature door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be the expected temperature. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| H1 CHECK THE PASSENGER TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| H2 CHECK THE PASSENGER TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| H3 CHECK THE PASSENGER TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| H4 CHECK THE PASSENGER TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| H5 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| H6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST I : B1083:07, B1083:11, B1083:12, B1083:13, B11F0:11, B11F0:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Inlet Door Actuator, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the air inlet mode door until the door reaches both internal stops in the HVAC case. If the air inlet mode door is temporarily obstructed or binding during a calibration cycle, the HVAC control module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the air intake may not be from the expected source. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| I1 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| I2 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| I3 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| I4 CHECK THE AIR INLET DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| I5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| I6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST J : B1086:07, B1086:11, B1086:12, B1086:13, B11E7:11, B11E7:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Distribution Door Actuator, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the defrost vent door and the footwell vent/register door until the doors reach both internal stops in the HVAC case. If the defrost vent door or the footwell vent/register door is temporarily obstructed or binding during a calibration cycle, the HVAC control module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be from the expected outlets. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| J1 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| J2 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| J3 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| J4 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| J5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| J6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST K : INSUFFICIENT, ERRATIC OR NO HEAT |
Normal Operation and Fault Conditions When the engine is at operating temperature hot coolant flows from the engine through the heater core and back to the engine. Correct coolant temperatures are critical for good heater performance. Possible Sources
Visual Inspection and Pre-checks
|
||||
| K1 CHECK FOR CORRECT ENGINE COOLANT LEVEL | ||||
Is the engine coolant at the correct level (hot or cold) as indicated on the engine coolant recovery reservoir?
|
||||
| K2 CHECK THE ENGINE COOLING SYSTEM FOR LEAKS | ||||
Does the cooling system leak?
|
||||
| K3 CHECK FOR COOLANT FLOW TO THE HEATER CORE | ||||
Is the heater core inlet hose temperature above 65.5°C (150°F)?
|
||||
| K4 CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE | ||||
Is the heater core outlet hose temperature similar to the inlet hose temperature [within approximately 6-17°C (10-30°F)]?
|
||||
| K5 CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE RETURN LOOP | ||||
Is the heater core outlet hose temperature similar to the inlet hose temperature [within approximately 6-17°C (10-30°F)]?
|
PINPOINT TEST L : THE A/C (AIR CONDITIONING)
IS INOPERATIVE - NON HEV (HYBRID ELECTRIC VEHICLE)
|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Request, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). Possible Sources
|
||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||
| NOTE: Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any PCM Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) Chart. | ||||||||||||||||||||||||||||||||
| L1 CHECK THE A/C (AIR CONDITIONING) SYSTEM PRESSURE | ||||||||||||||||||||||||||||||||
|
NOTE: Static refrigerant pressure, under perfect conditions, should approximately reflect ambient air temperature. Do not rely upon the static refrigerant pressure alone to determine if the system is properly charged. Refer to the current Ford Web Based Technical Training courses for basic HVAC system refrigerant operation.
Is the A/C system pressure above 290 kPa (42 psi)?
|
||||||||||||||||||||||||||||||||
| L2 CHECK THE COMMUNICATION NETWORK | ||||||||||||||||||||||||||||||||
Do the HVAC control module and the PCM pass the network test?
|
||||||||||||||||||||||||||||||||
| L3 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) PRESSURE SENSOR PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE VALUE | ||||||||||||||||||||||||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range.
Are the pressure values of the manifold gauge set and the PID, dependent upon ambient temperatures, within ± 103 kPa (15 psi)?
|
||||||||||||||||||||||||||||||||
| L4 ELECTRIC COOLING FAN FUNCTIONAL CHECK | ||||||||||||||||||||||||||||||||
Does the electric cooling fan operate when commanded ON?
|
||||||||||||||||||||||||||||||||
| L5 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) INTAKE AIR TEMPERATURE (IAT) PID (PARAMETER IDENTIFICATION) AND THE OTHER TEMPERATURE SENSOR READINGS TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE (AAT) PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||
|
NOTE: Compare multiple engine sensor readings to the ambient temperature to determine sensors are reading correctly. A faulty sensor can cause the Powertrain Control Module (PCM) to disable the Air Conditioning (A/C) compressor with or without a Diagnostic Trouble Code (DTC).
Are the temperature values similar (typically within 18ºC (32.4ºF)?
|
||||||||||||||||||||||||||||||||
| L6 COMPARE THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE EVAPORATOR TEMPERATURE (EVAP_TEMP) PID (PARAMETER IDENTIFICATION) TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE (AAT) PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||
Are the temperature values similar (typically within 18ºC (32.4ºF)?
|
||||||||||||||||||||||||||||||||
| L7 VERIFY THE GRILLE SHUTTER OPERATION USING THE PCM (POWERTRAIN CONTROL MODULE) GRILL SHUTTER A POSITION - COMMANDED (GRILL_A_CMD) PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||
Does the grille shutter fully open and close when commanded by the scan tool?
|
||||||||||||||||||||||||||||||||
| L8 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH (CC_SW_AC) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON | ||||||||||||||||||||||||||||||||
Does the PID display Active or On when the A/C button is pressed?
|
||||||||||||||||||||||||||||||||
| L9 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL (AC_REQ) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON | ||||||||||||||||||||||||||||||||
Does the PID display Yes when the button is pressed?
|
||||||||||||||||||||||||||||||||
| L10 RESET THE AMBIENT AIR TEMPERATURE (AAT) SENSOR | ||||||||||||||||||||||||||||||||
Does the A/C compressor turn on?
|
||||||||||||||||||||||||||||||||
| L11 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) COMPRESSOR COMMANDED STATE (ACC_CMD) PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) COMMANDED ON | ||||||||||||||||||||||||||||||||
Does the A/C compressor turn on?
|
||||||||||||||||||||||||||||||||
| L12 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||||||
| L13 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| L14 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL GROUND CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| L15 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| L16 CHECK THE AIR CONDITIONING CLUTCH RELAY OPERATION | ||||||||||||||||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||||||||||||
| L17 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH AIR GAP | ||||||||||||||||||||||||||||||||
Is the A/C compressor clutch air gap greater than 0.6 mm (0.0236 in)?
|
||||||||||||||||||||||||||||||||
| L18 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||||||||||||
| L19 CHECK FOR AN INPUT DISABLING THE A/C (AIR CONDITIONING) CLUTCH RELAY | ||||||||||||||||||||||||||||||||
|
NOTE: The Powertrain Control Module (PCM) strategy may disable the Air Conditioning (A/C) compressor operation. If the A/C compressor clutch can be commanded on using a diagnostic scan tool Powertrain Control Module (PCM) Parameter Identifications (PIDs) Active Commands, Powertrain Control Module (PCM) replacement will not resolve the condition.
Are any of the conditions described above not within normal parameters?
|
PINPOINT TEST M : P1464:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Request, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||
| M1 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||
Does DTC P1464 return?
|
||||||||||
| M2 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| M3 COMPARE THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE EVAPORATOR TEMPERATURE PID (PARAMETER IDENTIFICATION) TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE PID (PARAMETER IDENTIFICATION) | ||||||||||
Are the temperature values similar [typically within 18ºC (32.4ºF)]?
|
||||||||||
| M4 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) PRESSURE SENSOR PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE VALUE | ||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range.
Are the pressure values of the manifold gauge set and the PID, dependent upon ambient temperatures, within ± 103 kPa (15 psi)?
|
||||||||||
| M5 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH STATUS PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) OFF | ||||||||||
Does the PID display On when the A/C button is pressed and Off when released?
|
||||||||||
| M6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) OFF | ||||||||||
Does the PID display OFF?
|
||||||||||
| M7 CHECK THE PCM (POWERTRAIN CONTROL MODULE) AIR CONDITIONING REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) WITH THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DISCONNECTED | ||||||||||
Does the PID display OFF?
|
||||||||||
| M8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
||||||||||
| M9 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST N : B10AF:11, B10AF:15, B10B9:12, B10B9:14|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
|||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||
| N1 CHECK THE FRONT BLOWER MOTOR RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND | |||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||
| N2 CHECK THE FRONT BLOWER MOTOR RELAY COIL CONTROL CIRCUIT FOR AN OPEN | |||||||||||||||
|
NOTE: Some vehicles may be equipped with a diode in the blower motor relay coil ground circuit. Make sure the multimeter leads are correctly attached during testing or a false reading will occur causing misdiagnosis of the circuit. For additional information, refer to the Wiring Diagrams manual.
Is the resistance less than 3 ohms?
|
|||||||||||||||
| N3 CHECK THE BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR AN OPEN | |||||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||||
| N4 CHECK FOR VOLTAGE TO THE BLOWER MOTOR CONTROL MODULE | |||||||||||||||
Is the voltage greater than 11 volts?
|
|||||||||||||||
| N5 CHECK THE BLOWER MOTOR CONTROL MODULE GROUND CIRCUIT FOR AN OPEN | |||||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||||
| N6 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR A SHORT TO VOLTAGE | |||||||||||||||
Is any voltage present?
|
|||||||||||||||
| N7 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR AN OPEN | |||||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||||
| N8 CHECK FOR CORRECT BLOWER MOTOR CONTROL MODULE OPERATION | |||||||||||||||
Is the concern still present?
|
|||||||||||||||
| N9 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||
Is the concern still present?
|
PINPOINT TEST O : B10AF:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling. REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||
| O1 VERIFY THE FRONT BLOWER MOTOR OPERATION | ||||||||||
Does the blower motor operate at any setting?
|
||||||||||
| O2 CHECK THE BLOWER MOTOR RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| O3 CHECK THE BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| O4 CHECK FOR CORRECT BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
||||||||||
| O5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST P : U0140:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The ACCM, HVAC control module and the RHVAC control module communicate with the BCM over the CAN. If messages are missing or not received from the BCM, the climate control system may not operate not operate correctly. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||
| P1 VERIFY THE CONCERN | ||||||||||||
Is an observable symptom present?
|
||||||||||||
| P2 CHECK THE NETWORK COMMUNICATION | ||||||||||||
Does the BCM pass the network test?
|
||||||||||||
| P3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||
| P4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||
| P5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00 | ||||||||||||
Is DTC U0140:00 still present?
|
||||||||||||
| P6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | ||||||||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is the observable symptom still present?
|
||||||||||||
| P7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION | ||||||||||||
Is the concern still present?
|
PINPOINT TEST Q : U0155:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions With the ignition ON, the IPC sends messages to the HVAC control module over the MS-CAN. If the HVAC control module does not receive these messages within the specified time frame, the module sets a DTC. This can be due to an IPC failure, a circuit failure on the MS-CAN or an excessive load on the network. For information on the messages sent to the HVAC control module by the IPC, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| Q1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| Q2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the IPC pass the network test?
|
||||||
| Q3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| Q4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| Q5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0155:00 still present?
|
||||||
| Q6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00 SET IN OTHER MODULES | ||||||
Is DTC U0155:00 set in other modules on the network?
|
||||||
| Q7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION | ||||||
Is the concern still present?
|
||||||
| Q8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST R : U0164:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Rear Climate Control - System Operation and Component Description (412-02A Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| R1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| R2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the HVAC control module pass the network test?
|
||||||
| R3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| R4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (RHVAC) REAR HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| R5 RECHECK THE (RHVAC) REAR HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0164:00 still present?
|
||||||
| R6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0164:00 SET IN OTHER MODULES | ||||||
Is DTC U0164:00 set in other modules on the network?
|
||||||
| R7 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| R8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST S : U0165:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Rear Climate Control - System Operation and Component Description (412-02A Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| S1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| S2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the RHVAC control module pass the network test?
|
||||||
| S3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| S4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| S5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0165:00 still present?
|
||||||
| S6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0165:00 SET IN OTHER MODULES | ||||||
Is DTC U0165:00 set in other modules on the network?
|
||||||
| S7 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| S8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST T : U0249:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| T1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| T2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the RACM pass the network test?
|
||||||
| T3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RACM (REAR AUDIO CONTROL MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| T4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| T5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0249:00 still present?
|
||||||
| T6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0249:00 SET IN OTHER MODULES | ||||||
Is DTC U0249:00 set in other modules on the network?
|
||||||
| T7 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| T8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST U : U0247:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, DTC Fault Trigger Conditions
Possible Sources
|
||||||
| U1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| U2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the SCMF pass the network test?
|
||||||
| U3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE SCMF (REAR SEAT CLIMATE CONTROL MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| U4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (RHVAC) REAR HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| U5 RECHECK THE (RHVAC) REAR HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0247:00 still present?
|
||||||
| U6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0247:00 SET IN OTHER MODULES | ||||||
Is DTC U0247:00 set in other modules on the network?
|
||||||
| U7 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| U8 CHECK FOR CORRECT SCMF (REAR SEAT CLIMATE CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST V : U0253:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| V1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| V2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the APIM pass the network test?
|
||||||
| V3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE APIM (SYNC MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| V4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| V5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0253:00 still present?
|
||||||
| V6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00 SET IN OTHER MODULES | ||||||
Is DTC U0253:00 set in other modules on the network?
|
||||||
| V7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| V8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST W : U025D:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| W1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| W2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the FCIMB pass the network test?
|
||||||
| W3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| W4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| W5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U025D:00 still present?
|
||||||
| W6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U025D:00 SET IN OTHER MODULES | ||||||
Is DTC U025D:00 set in other modules on the network?
|
||||||
| W7 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION | ||||||
Is the concern still present?
|
||||||
| W8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST X : U1000:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| X1 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is U1000:00 present?
|
PINPOINT TEST Y : B102E:11, B102E:15, B102E:92|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Ambient air quality sensor, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| Y1 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||
| Y2 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| Y3 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| Y4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST Z : B1A63:11, B1A63:15, B1A64:11, B1A64:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The sunload sensor supplies information to the HVAC control module indicating the sunload intensity on the vehicle and the HVAC control module adjusts the system based on that information. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| Z1 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| Z2 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| Z3 CHECK THE SUNLOAD SENSOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| Z4 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| Z5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AA : B10B3:11, B10B3:15, B10B4:11, B10B4:15, B10B5:11, B10B5:15, B10B6:11, B10B6:15 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The front air discharge sensors supply a varying voltage to the HVAC control module based on the temperature of the air being discharged from the vent. The HVAC control module adjusts the system based on the voltage from each sensor. Each air discharge sensor is supplied voltage from the HVAC control module and all sensors share a common sensor ground. An open, a short to ground, a short to voltage on one or more of these circuits or a failed air discharge sensor causes the HVAC control module to set one or more Diagnostic Trouble Codes (DTCs). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| AA1 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR OUTPUT VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Are the voltages between 4.7 and 5.1 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| AA2 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| AA3 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| AA4 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| AA5 CHECK AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO TOGETHER | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||||||
| AA6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AB : P193E|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The PCM controls the A/C compressor clutch field coil based on messages received from the BCM over the HS-CAN. When the HVAC control module determines it is necessary to activate the A/C compressor, either due to driver request or due to automatic climate control settings, the HVAC control module sends a message to the BCM over the MS-CAN, the BCM then sends a message to the PCM to activate the A/C compressor. An internal failure of the PCM, BCM or HVAC control module; or a failure in the MS-CAN or HS-CAN causes the PCM to set a DTC. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AB1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| AB2 CHECK THE COMMUNICATION NETWORK | ||||||
Do the BCM, PCM and the HVAC control module pass the network test?
|
||||||
| AB3 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) | ||||||
Does the PID display YES when the A/C button indicator is illuminated?
|
||||||
| AB4 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH PID (PARAMETER IDENTIFICATION) | ||||||
Does the PID display ON when the A/C button indicator is illuminated?
|
||||||
| AB5 VERIFY CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| AB6 VERIFY CORRECT BCM (BODY CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| AB7 VERIFY CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AC : C1B14:11, C1B14:12|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Reference voltage is supplied to the climate control actuators and one sensor from the HVAC control module on one common circuit and the signal returns to the HVAC control module on one common circuit. All components that share these two circuits are listed in this pinpoint test. Access to these components are difficult. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||
| AC1 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||||||
Is DTC C1B14:11 or C1B14:12 present?
|
|||||||||||||
| AC2 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AC3 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||
| AC4 CHECK THE REFERENCE VOLTAGE CIRCUIT AND THE SIGNAL RETURN CIRCUIT FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 200 ohms?
|
|||||||||||||
| AC5 CHECK THE A/C (AIR CONDITIONING) COMPONENTS | |||||||||||||
Did the resistance rise above 200 ohms?
|
|||||||||||||
| AC6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST AD : B11EC:12, B11EC:14|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Rear blower motor, REFER to: Rear Climate Control - System Operation and Component Description (412-02A Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||
| AD1 CHECK THE REAR BLOWER MOTOR OPERATION | |||||||||||||
Does the rear blower motor operate in any position?
|
|||||||||||||
| AD2 CHECK THE REAR BLOWER MOTOR SPEED CONTROL GROUND CIRCUIT | |||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||
| AD3 CHECK THE REAR BLOWER MOTOR SPEED CONTROL SUPPLY VOLTAGE CIRCUIT FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| AD4 CHECK THE REAR BLOWER MOTOR SPEED CONTROL FOR SUPPLY VOLTAGE | |||||||||||||
Is the voltage greater than 11 volts?
|
|||||||||||||
| AD5 CHECK THE PWM (PULSE WIDTH MODULATION) CIRCUIT BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE AND THE REAR BLOWER MOTOR SPEED CONTROL FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AD6 CHECK THE PWM (PULSE WIDTH MODULATION) CIRCUIT BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE AND THE REAR BLOWER MOTOR SPEED CONTROL FOR A SHORT TO GROUND | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| AD7 CHECK THE PWM (PULSE WIDTH MODULATION) CIRCUIT BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE AND THE REAR BLOWER MOTOR SPEED CONTROL FOR AN OPEN | |||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||
| AD8 CHECK FOR REAR BLOWER MOTOR FUNCTIONALITY WITH A TEST LIGHT IN PLACE OF THE REAR BLOWER MOTOR | |||||||||||||
|
NOTICE: The following pinpoint test step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or equivalent 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.
Does the test lamp illuminate?
|
|||||||||||||
| AD9 CHECK THE REAR BLOWER MOTOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AD10 CHECK THE REAR BLOWER MOTOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||
| AD11 CHECK THE REAR BLOWER MOTOR GROUND CIRCUIT FOR AN OPEN | |||||||||||||
Is the resistance less than 3 ohms?
|
|||||||||||||
| AD12 CHECK FOR CORRECT REAR BLOWER MOTOR SPEED CONTROL OPERATION | |||||||||||||
Is the concern still present?
|
|||||||||||||
| AD13 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
.jpg)
PINPOINT TEST AE : THE REAR BLOWER MOTOR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Rear blower motor, REFER to: Rear Climate Control - System Operation and Component Description (412-02A Rear Climate Control, Description and Operation). Possible Sources
|
||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||
| AE1 CHECK THE REAR BLOWER MOTOR OPERATION | ||||||||||||||||
Does the rear blower motor operate in any position?
|
||||||||||||||||
| AE2 CHECK THE REAR BLOWER MOTOR SPEED CONTROL CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
||||||||||||||||
| AE3 CHECK THE REAR BLOWER MOTOR CONTROL MODULE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||
| AE4 CHECK FOR CORRECT REAR BLOWER MOTOR SPEED CONTROL OPERATION | ||||||||||||||||
Is the concern still present?
|
||||||||||||||||
| AE5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
PINPOINT
TEST AF : B11E4:07, B11E4:11, B11E4:12, B11E4:13, B158C:11, B158C:15,
B159E:07, B159E:11, B159E:12, B159E:13, B1B7D:11, B1B7D:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air handling, REFER to: Rear Climate Control - System Operation and Component Description (412-02A Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||||||||||||||||
| AF1 CHECK THE REAR AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||||||||||||||||
| AF2 CHECK THE REAR AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||||||||||||||||
| AF3 CHECK THE REAR AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||||||||||||||||
| AF4 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||||||||||||||||
| AF5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AG : B10B7:11, B10B7:15, B11E3:07, B11E3:11, B11E3:12, B11E3:13|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Second row temperature door actuator, REFER to: Second Row Climate Control - System Operation and Component Description (412-02B Second Row Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| AG1 CHECK THE SECOND ROW TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| AG2 CHECK THE SECOND ROW TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| AG3 CHECK THE SECOND ROW TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| AG4 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| AG5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AH : B1364:07, B1364:11, B1364:12, B1364:13, B158F:11, B158F:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air handling, REFER to: Rear Climate Control - System Operation and Component Description (412-02A Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||||||||||||||
| AH1 CHECK THE REAR TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| AH2 CHECK THE REAR TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| AH3 CHECK THE REAR TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| AH4 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| AH5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AI : B10B8:63|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Climate control system buttons held too long may set this DTC. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||
| AI1 CLEAN RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE BUTTONS | ||||||
Is the concern still present?
|
||||||
| AI2 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT
TEST AJ : P0562:00, P0563:00, P0AFA:16, P0AFB:17, P0AFB:1C, B11EE:19,
B11EE:4B, B11EE:92, P0D6D:00, P0D6F:00, P0D71:00, P26FD:00, P2D41:00,
P2D42:00, P2D44:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The ACCM is an integral part of the A/C electric compressor and cannot be removed from or serviced separately. The ACCM has both low voltage and high voltage electrical connections. The ACCM requires a low voltage system operating voltage between 9 and 16 volts. The ACCM also requires high voltage system operating voltage between 110 and 467 volts. The ACCM has a single ground circuit located in the engine compartment wiring harness. Excessive resistance or an open in one or more of these circuits, a discharged battery or an inoperative charging system results in the ACCM setting a DTC. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ1 CARRY OUT THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) SELF-TEST | ||||||||||||||||||||||||||||||||||||||||||||||||
Are any DCDC Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ2 CARRY OUT THE BECM (BATTERY ENERGY CONTROL MODULE) SELF-TEST | ||||||||||||||||||||||||||||||||||||||||||||||||
Are any BECM Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ3 RECHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to the appropriate workshop manual section 414-03. NOTE: Before testing of the A/C electric compressor ACCM with a diagnostic scan tool can be performed on HEV, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P.
Does DTC P0562:00, P0563:00, P0AFA:16, P0AFB:17, P0AFB:1C, B11EE:19, B11EE:4B or B11EE:92 return?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ4 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) MAIN ECU VOLTAGE SUPPLY MAINECUV PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the voltage PID between 9 volts and 16 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ5 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) LOW VOLTAGE SUPPLY CIRCUIT | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ6 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) GROUND CIRCUIT | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ7 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) ELECTRIC A/C COMPRESSOR HIGH VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the voltage supply PID between 110 volts and 467 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ8 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) ELECTRIC A/C COMPRESSOR HIGH VOLTAGE CABLES FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||||
|
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ9 CHECK THE HIGH VOLTAGE LOW CURRENT FUSE | ||||||||||||||||||||||||||||||||||||||||||||||||
|
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AJ10 CHECK FOR CORRECT ACCM (AIR CONDITIONING CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Before testing of the A/C electric compressor ACCM with a diagnostic scan tool can be performed on HEV, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P.
Is the concern still present?
|
.jpg)
PINPOINT TEST AK : P01EB:96, P2DA4:00, P2DA5:00, P2DA6:00, P2DA7:00, U069E:81, U069E:87|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin coolant heater, REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||||
.jpg)
WARNING:
To prevent the risk of high-voltage shock, always follow
precisely all warnings and service instructions, including instructions
to depower the system. The high-voltage system utilizes approximately
300 volts DC, provided through high-voltage cables to its components and
modules. The high-voltage cables and wiring are identified by orange
harness tape or orange wire covering. All high-voltage components are
marked with high-voltage warning labels with a high-voltage symbol.
Failure to follow these instructions may result in serious personal
injury or death.
|
||||||||||||||||||||||||
| NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to section 414-03. | ||||||||||||||||||||||||
| AK1 CHECK THE CABIN COOLANT HEATER USING THE PARAMETER IDENTIFICATION (PID) | ||||||||||||||||||||||||
|
NOTICE: Running of the cabin coolant heater without running the cabin heater coolant pump may cause damage to the cabin coolant heater. NOTE: Before an active command of the Cabin Heater Coolant Pump, the Cabin Coolant Heater or the Cabin Heater Coolant Diverter Valve can be performed, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P.
Do the heater core hoses increase in temperature?
|
||||||||||||||||||||||||
| AK2 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) HIGH VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||
|
NOTE: The Cabin Coolant Heater and the Air Conditioning Control Module share the same High Voltage source. Monitor the ACCM HV PID.
Is the voltage supply PID between 110 volts and 467 volts?
|
||||||||||||||||||||||||
| AK3 CHECK FOR PARTIALLY MATED HIGH VOLTAGE CONNECTORS | ||||||||||||||||||||||||
Are any of the connectors not fully seated?
|
||||||||||||||||||||||||
| AK4 CHECK THE CABIN COOLANT HEATER HIGH VOLTAGE CABLES FOR AN OPEN | ||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||
| AK5 CHECK THE CABIN COOLANT HEATER HIGH VOLTAGE LOW CURRENT FUSE | ||||||||||||||||||||||||
|
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||
| AK6 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||
| AK7 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||
| AK8 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||
| AK9 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||
| AK10 CHECK THE COOLANT HOSE ROUTING | ||||||||||||||||||||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Are the coolant hoses routed correctly?
|
||||||||||||||||||||||||
| AK11 CHECK THE ENGINE COOLANT LEVEL | ||||||||||||||||||||||||
|
NOTE: Allow the engine to cool before checking the engine coolant level.
Is the engine coolant level within specifications?
|
||||||||||||||||||||||||
| AK12 CLEAR ALL SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) DIAGNOSTIC TROUBLE CODES | ||||||||||||||||||||||||
|
NOTE: Before an active command of the Cabin Heater Coolant Pump, the Cabin Coolant Heater or the Cabin Heater Coolant Diverter Valve can be performed, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P.
Do the heater core hoses increase in temperature?
|
PINPOINT TEST AL : U0100:00|
Normal Operation and Fault Conditions The ACCM communicates with the SOBDMC over the CAN. If messages are missing or not received from the PCM, features such as the A/C can be inoperative. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AL1 VERIFY THE CONCERN | ||||||
Is an observable symptom present?
|
||||||
| AL2 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE) | ||||||
Can a vehicle session be established?
|
||||||
| AL3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AL4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AL5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00 | ||||||
Is DTC U0100:00 still present?
|
||||||
| AL6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or Programmable Module Installation (PMI) the may not have been carried out.
Is the observable symptom still present?
|
||||||
| AL7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AM : U0111:00|
Normal Operation and Fault Conditions The ACCM communicates with the BECM over the CAN. If messages are missing or not received from the BECM, the A/C can be inoperative. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AM1 VERIFY THE CONCERN | ||||||
Is an observable symptom present?
|
||||||
| AM2 CHECK THE NETWORK COMMUNICATION | ||||||
Does the BECM pass the network test?
|
||||||
| AM3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AM4 CHECK FOR BECM (BATTERY ENERGY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AM5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0111:00 | ||||||
Is DTC U0111:00 still present?
|
||||||
| AM6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or Programmable Module Installation (PMI) the may not have been carried out.
Is the observable symptom still present?
|
||||||
| AM7 CHECK FOR CORRECT BECM (BATTERY ENERGY CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AN : U3003:16 |
Refer to Wiring Diagrams Cell 55 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
Possible Sources
|
||||||||||||||||
| AN1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||
Is DTC U3003:16 still present?
|
||||||||||||||||
| AN2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||
Are any voltage-related Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||
| AN3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE | ||||||||||||||||
Is the battery OK and fully charged?
|
||||||||||||||||
| AN4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE | ||||||||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||||||||
| AN5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE | ||||||||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||||||||
| AN6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE | ||||||||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||||||||
| AN7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
||||||||||||||||
| AN8 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AO : U3003:17|
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
Possible Sources
|
|||||||||
| NOTE: Diagnostic Trouble Code (DTC) U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events. | |||||||||
| AO1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES | |||||||||
Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?
|
|||||||||
| AO2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING | |||||||||
Does the battery voltage rise to 16 volts or higher?
|
|||||||||
| AO3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE) | |||||||||
Is DTC U3003:17 still present?
|
|||||||||
| AO4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||
Is the concern still present?
|
|||||||||
| AO5 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||
Is the concern still present?
|
PINPOINT TEST AP : U0001:88|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AP1 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 Diagnostic Trouble Code (DTC).
Is the DTC still present?
|
PINPOINT TEST AQ : INVALID DATA RECEIVED|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||||
| AQ1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA | |||||||||||||||||||||||||||
Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?
|
PINPOINT TEST AR : MODULE CONFIGURATION FAULT|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| AR1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE | |||||||||
Is the original DTC still present?
|
PINPOINT TEST AS : INTERNAL MODULE FAILURE|
DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||
| AS1 INSTALL A NEW SUSPECT MODULE | ||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AT : P2611:00, P2612:00, P2613:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions High voltage battery coolant cooler, REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). To validate repairs have been completed, using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) and carry out a self-test of the SOBDMC. The SOBDMC self-test requests the climate control valve to actuate. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||||||||||
| AT1 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||
| AT2 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AT3 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER CIRCUITS FOR AN OPEN | |||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||
| AT4 CHECK THE HIGH VOLTAGE BATTERY COOLANT COOLER CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AT5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AU : P2E62:00, P2E63:00, P2E64:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Rear heater core shut off valve, REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). To validate repairs have been completed, using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) and carry out a self-test of the SOBDMC. The SOBDMC self-test requests the climate control valve to actuate. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||||||||||
| AU1 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||
| AU2 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AU3 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR AN OPEN | |||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||
| AU4 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AU5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AV : B3A01:00, B3A02:00, B3A03:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Rear evaporator shut off valve, REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). To validate repairs have been completed, using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) and carry out a self-test of the SOBDMC. The SOBDMC self-test requests the climate control valve to actuate. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||
| AV1 CHECK THE REAR EVAPORATOR SHUTOFF VALVE CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AV2 CHECK THE REAR EVAPORATOR SHUT OFF VALVE CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| AV3 CHECK THE REAR EVAPORATOR SHUT OFF VALVE CIRCUITS FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| AV4 CHECK THE REAR EVAPORATOR SHUT OFF VALVE CIRCUITS FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| AV5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST AW : P24AE:09, P24AE:8F, P24AE:92|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Particulate matter sensor, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||
| NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| AW1 CHECK THE PARTICULATE MATTER SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||
| AW2 CHECK THE PARTICULATE MATTER SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| AW3 CHECK THE PARTICULATE MATTER SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| AW4 CHECK THE PARTICULATE MATTER SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| AW5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AX : B10BA:12, B10BA:14|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Second Row Climate Control - System Operation and Component Description (412-02B Second Row Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| AX1 CHECK THE SECOND ROW BLOWER MOTOR CONTROL MODULE CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| AX2 CHECK THE SECOND ROW BLOWER MOTOR CONTROL MODULE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| AX3 CHECK THE SECOND ROW BLOWER MOTOR CONTROL MODULE CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| AX4 CHECK FOR VOLTAGE TO THE SECOND ROW BLOWER MOTOR CONTROL MODULE | ||||||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||
| AX5 CHECK FOR CORRECT SECOND ROW BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| AX6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AY : THE SECOND ROW BLOWER MOTOR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Second Row Climate Control - System Operation and Component Description (412-02B Second Row Climate Control, Description and Operation). Possible Sources
|
||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||
| AY1 VERIFY THE SECOND ROW BLOWER MOTOR OPERATION | ||||||||||
Does the rear blower motor (console blower motor) operate at any setting?
|
||||||||||
| AY2 CHECK THE SECOND ROW BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| AY3 CHECK FOR CORRECT SECOND ROW BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
||||||||||
| AY4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST AZ : B1580:11, B1580:15, B1581:07, B1581:11, B1581:12, B1581:13|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The second row air flow shut off door actuator, REFER to: Second Row Climate Control - System Operation and Component Description (412-02B Second Row Climate Control, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the door until the door reaches both internal stops in the HVAC case. If the door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be as expected. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| AZ1 CHECK THE SECOND ROW AIR FLOW SHUT OFF DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| AZ2 CHECK THE SECOND ROW AIR FLOW SHUT OFF DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| AZ3 CHECK THE SECOND ROW AIR FLOW SHUT OFF DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| AZ4 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| AZ5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST BA : B14D3:11, B14D3:15, B14D4:11, B14D4:15, B1582:11, B1582:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The air discharge temperature sensors supply a varying voltage to the HVAC control module based on the temperature of the air being discharged from the vent. The HVAC control module adjusts the system based on the voltage from each sensor. Each air discharge temperature sensor is supplied voltage from the HVAC control module and all sensors share a common sensor ground. An open, a short to ground, a short to voltage on one or more of these circuits or a failed air discharge sensor causes the HVAC control module to set one or more Diagnostic Trouble Codes (DTCs). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||||||||||
| BA1 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR OUTPUT VOLTAGE | ||||||||||||||||||||||||||||||||||||||||
Are the voltages between 4.7 and 5.1 volts?
|
||||||||||||||||||||||||||||||||||||||||
| BA2 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||||||||||||||
| BA3 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| BA4 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| BA5 CHECK AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO TOGETHER | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| BA6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST BB : B1379:11, B1379:15, B159B:11, B159B:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The second row and third row temperature sensors, located in the headliner area above the second row seats or third row seats, vary signals to the HVAC control module based on the temperature of the rear cabin air. The HVAC control module adjusts the system based on the signal from each sensor. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||||||||||||||||
| BB1 CHECK THE SECOND ROW OR THIRD ROW TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||||||||||||||||||||
| BB2 CHECK THE SECOND ROW OR THIRD ROW TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| BB3 CHECK THE SECOND ROW OR THIRD ROW TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| BB4 CHECK AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO TOGETHER | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| BB5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST BC : P2183:00, P2184:00, P2185:00, P2186:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin heater coolant temperature sensor (also known as ECT sensor 2), REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||
|
WARNING:
To prevent the risk of high-voltage shock, always follow
precisely all warnings and service instructions, including instructions
to depower the system. The high-voltage system utilizes approximately
450 volts DC, provided through high-voltage cables to its components and
modules. The high-voltage cables and wiring are identified by orange
harness tape or orange wire covering. All high-voltage components are
marked with high-voltage warning labels with a high-voltage symbol.
Failure to follow these instructions may result in serious personal
injury or death.
|
||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||||||||||||||||||||||||||||
| NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to section 414-03. | ||||||||||||||||||||||||||||||||
| BC1 CHECK THE COOLANT HOSE ROUTING | ||||||||||||||||||||||||||||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Are the coolant hoses routed correctly?
|
||||||||||||||||||||||||||||||||
| BC2 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||||||||||
| BC3 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||
| BC4 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| BC5 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||
| BC6 CHECK THE CABIN HEATER COOLANT TEMPERATURE SENSOR RESISTANCE | ||||||||||||||||||||||||||||||||
Is the resistance within the specified values for the temperatures?
|
||||||||||||||||||||||||||||||||
| BC7 CHECK FOR CORRECT POWERTRAIN CONTROL MODULE (PCM) OPERATION | ||||||||||||||||||||||||||||||||
Is the concern still present?
|
.jpg)
C1064 pin 1, component side
PINPOINT TEST BD : THE A/C (AIR CONDITIONING)
COMPRESSOR RELIEF VALVE DISCHARGING|
Normal Operation and Fault Conditions The A/C pressure relief valve normal open pressure is 3,447-4,137 kPa (500-600 psi). Possible Sources
|
||||
| BD1 DIAGNOSE THE A/C (AIR CONDITIONING) COMPRESSOR RELIEF VALVE | ||||
Is the high side system pressure above the A/C pressure relief valve open pressure [3,447-4,137 kPa (500-600 psi)]?
|
PINPOINT TEST BE : REDUCED OUTLET AIRFLOW|
Possible Sources
|
||||
| NOTE: Before carrying out the following test, diagnose all Heating, Ventilation And Air Conditioning (HVAC) control module and Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs). | ||||
| BE1 CHECK THE CABIN AIR FILTER | ||||
Is the cabin air filter plugged?
|
||||
| BE2 CHECK THE BLOWER MOTOR OPERATION | ||||
Does the blower motor operate properly?
|
||||
| BE3 CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR PROPER CHARGE | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the system pass the refrigerant system tests?
|
PINPOINT TEST BF : AIR CONDITIONING (A/C) SYSTEM NVH (NOISE, VIBRATION AND HARSHNESS)
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F). Normal Operation and Fault Conditions INSPECT the A/C system for a leak. REFER to the appropriate General Procedures in Group 412-00. Some sounds are normal when the A/C system is operating. When the refrigerant charge is found to be correct, compare to a like vehicle. Possible Sources
|
| Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation). |
PINPOINT TEST BG : INSUFFICIENT AIR CONDITIONING (A/C) COOLING|
Possible Sources
|
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| BG1 CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR PROPER CHARGE | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the system pass the refrigerant system tests?
|
PINPOINT TEST BH : P26BE:00, P26BF:00 CABIN HEATER COOLANT DIVERTER VALVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin Heater Coolant Diverter Valve (also known as Engine Coolant Bypass Valve "D"), REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
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| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||||||||||||||||||
| BH1 CHECK THE COOLANT LEVEL | ||||||||||||||||||||||
|
NOTE: Allow the electrified drivetrain to cool before checking the coolant level.
Is the coolant level within specifications?
|
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| BH2 CHECK FOR AND CLEAR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) AND COMMAND THE CABIN HEATER COOLANT DIVERTER VALVE ON | ||||||||||||||||||||||
Is DTC P26BE:00 or P26BF:00 received or is the cabin heater coolant diverter valve not energizing?
|
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| BH3 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is there any voltage present?
|
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| BH4 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| BH5 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
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| BH6 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| BH7 CLEAR ALL PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES | ||||||||||||||||||||||
Does the cabin coolant diverter valve energized?
|
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| BH8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
Description and Operation - Climate Control System - System Operation and Component Description
System Operation
System Diagram
Item
Description
1
FDIM
2
Microphone
3
APIM
4
GWM
5
Ambient Air Temperature (AAT) sensor
6
PCM
7
A/C pressure transducer
8
A/C clutch relay ( BCMC)
9
A/C compressor clutch field coil
10
Externally Controlled Variable Displacement Compressor (EVDC)
11
Sunload sensor
12
In-vehicle temperature and humidity sensor
13
Evaporator temperature sensor
14
HVAC control module
15
Air distribution door actuator
16
Temperature door actuator
17
Passenger side temperature door actuator
18
Air inlet door actuator
19
Blower motor relay (BCMC)
20
Blower motor control module
21
Driver side register air discharge temperature sensor
22
Passenger side register air discharge temperature sensor
23
Driver side footwell air discharge temperature sensor
24
Ambient air quality sensor (if equipped)
25
Passenger side footwell air discharge temperature sensor
26
SOBDMC
27
ACCM
28
BCM
29
Particulate filter sensor (if equipped)
Network Message Chart
ACCM - Module Network Input Messages
Broadcast Message
Originating Module
Message Purpose
Ambient air temperature filtered
PCM \ PCM_ HEV
This message contains the climate control system controls ambient air temperature information...
General Procedures - Air Conditioning (A/C) Clutch Air Gap Adjustment - Vehicles With: R134A Refrigerant/R1234YF Refrigerant
Activation
NOTE:
Compressor with a spring rubber clutch shown others similar.
Check the A/C clutch air gap at 3 equally spaced places between the clutch plate and the A/C clutch pulley...
Other information:
Lincoln Aviator 2020-2024 Service Manual: Removal and Installation - Steering Column Multifunction Switch RH
Removal NOTE: Removal steps in this procedure may contain installation details. Remove the steering column shrouds. Refer to: Steering Column Shrouds (501-05 Interior Trim and Ornamentation, Removal and Installation). NOTE: Make sure the component terminals are not bent or damaged...
Lincoln Aviator 2020-2024 Owners Manual: Jump Starting the Vehicle
WARNING: Batteries normally produce explosive gases which can cause personal injury. Therefore, do not allow flames, sparks or lighted substances to come near the battery. When working near the battery, always shield your face and protect your eyes...
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Locking and Unlocking the Doors from Inside
Locking the Doors
Press the lock switch on the door interior trim panel. The doors can no longer be released using the exterior door handle switches and the luggage compartment locks.
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