Lincoln Aviator: Power Steering / Description and Operation - Adaptive Steering - Overview
Overview
The
adaptive steering system changes the steering ratio between the
steering wheel and the road wheels dynamically, thereby reducing the
number of steering wheel turns required to turn the road wheels. This is
accomplished through the use of a motor, worm gear and toothed hub. All
adaptive steering system components are inside the steering wheel,
behind the driver airbag.
System Operation
System Diagram
Item
Description
1
SECM
2
ECU
3
Private CAN
4
IPMA
5
SIMA
6
PSCM
7
GWM
8
Locking solenoid
9
SASM
10
BCM
11
PCM
12
IPC
13
SUMA
14
RCM
15
Motor
16
HVAC module
17
APIM
Network Input Message Chart
SECM Network Input Messages
Broadcast Message
Originating Module
Message Purpose
Active front steering request
PSCM
Requests steering angle changes for stability control events...
Other information:
Vehicles with Automatic Transmission
The system turns on when all of the following
occur:
You start your vehicle.
You shift into drive (D).
The vehicle speed is greater than 6 mph
(10 km/h).
Note: The system does not operate in park
(P) or reverse (R)...
Special Tool(s) /
General Equipment
100-002
(TOOL-4201-C)
Holding Fixture with Dial Indicator Gauge
Inspection
NOTE:
Driveline vibration exhibits a higher frequency and lower
amplitude then high-speed shake. Driveline vibration is directly related
to the speed of the vehicle and is noticed at various speeds...