Lincoln Aviator: Power Steering / Description and Operation - Power Steering - Overview
Overview
The EPAS
system provides steering assist by replacing the conventional hydraulic
valve system with a steering gear equipped with an integrated
electrical motor and PSCM. The motor operation and level of steering assist provided is controlled by the PSCM.
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...
System Operation
System Diagram
Item
Description
1
EPAS gear
2
EPAS motor
3
EPAS position sensor
4
EPAS torque sensor
5
PSCM
6
GWM
7
PCM
8
IPC
9
BCM
10
RCM
11
ABS
12
IPMB
13
IPMA
14
PAM
15
SASM
16
SCCM
17
SUMA
Network Message Chart
PSCM Network Input Messages
Broadcast Message
Originating Module
Message Purpose
Anti-lock brake control activated
ABS module
Informs the PSCM an anti-lock brake event is taking place...
Other information:
Special Tool(s) /
General Equipment
307-346
(T97T-7902-A)
Retainer, Torque ConverterTKIT-1998-LM (NavigatoR)TKIT-1997-F/FLM/LT
Magnetic Socket
Transmission Jack
Wooden Block
Materials
Name
Specification
Motorcraft® Multi-Purpose Grease SprayXL-5-A
ESB-M1C93-B
Motorcraft® MERCON® ULV Automatic Transmission FluidXT-12-QULV
WSS-M2C949-A, MERCON® ULV
Removal
With the vehicle in NEUTRAL, position it on a hoist...
Overview
The rear suspension consists of the following components:
Coil springs
Lower arm and bushing assemblies
Stabilizer bar and links
Toe links
Upper arms
Lower arm vertical links
Wheel bearing and wheel hub assemblies
Wheel knuckles
Wheel studs
Suspension height sensor
Dynamically controlled shock absorbers
Refer to: Vehicle Dynamic Suspension - Vehicles With: Air Suspension - Component Location (204-05 Vehicle Dynamic Suspension, Description and Operation)...
Categories
The front outboard and rear safety restraints
in the vehicle are combination lap and
shoulder belts.
Insert the belt tongue into the proper
buckle (the buckle closest to the direction
the tongue is coming from) until you hear
a snap and feel it latch. Make sure that
you securely fasten the tongue in the
buckle.
To unfasten, press the release button
and remove the tongue from the buckle.
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