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:
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
PCM
P0505:00
Idle Control System: No Sub Type Information
GO to Pinpoint Test HU
PCM
P0506:00
Idle Control System - RPM Lower Than Expected: No Sub Type Information
GO to Pinpoint Test HU
PCM
P0507:00
Idle Control System - RPM Higher Than Expected: No Sub Type Information
GO to Pinpoint Test HU
PCM
P050A:00
Cold Start Idle Control System Performance: No Sub Type Information
GO to Pinpoint Test HU
PCM
P050B:00
Cold Start Ignition Timing Performance: No Sub Type Information
GO to Pinpoint Test HU
PCM
P050E:00
Cold Start Engine Exhaust Temperature Too Low: No Sub Type Information
GO to Pinpoint Test HU
PCM
P115E:00
Throttle Actuator Control Throttle Body Air Flow Trim At Max Limit: No Sub Type Information
GO to Pinpoint Test HU
PCM
P1548:00
Engine Air Filter Restriction: No Sub Type Information
GO to Pinpoint Test HU
PCM
P2004:00
Intake Manifold Runner Control Stuck Open (Bank 1): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2005:00
Intake Manifold Runner Control Stuck Open (Bank 2): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2006:00
Intake Manifold Runner Control Stuck Closed (Bank 1): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2007:00
Intake Manifold Runner Control Stuck Closed (Bank 2): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2008:00
Intake Manifold Runner Control Circuit/Open (Bank 1): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2011:00
Intake Manifold Runner Control Circuit/Open (Bank 2): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2014:00
Intake Manifold Runner Position Sensor/Switch Circuit (Bank 1): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2015:00
Intake Manifold Runner Position
Sensor/Switch Circuit Range/Performance (Bank 1): No Sub Type
Information
GO to Pinpoint Test HU
PCM
P2016:00
Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 1): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2017:00
Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 1): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2019:00
Intake Manifold Runner Position Sensor/Switch Circuit (Bank 2): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2020:00
Intake Manifold Runner Position
Sensor/Switch Circuit Range/Performance (Bank 2): No Sub Type
Information
GO to Pinpoint Test HU
PCM
P2021:00
Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 2): No Sub Type Information
GO to Pinpoint Test HU
PCM
P2022:00
Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 2): No Sub Type Information
GO to Pinpoint Test HU
Global Customer Symptom Code (GCSC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the RH loadspace trim panel.
Refer to: Loadspace Trim Panel (501-05 Interior Trim and Ornamentation, Removal and Installation).
Disconnect the electrical connectors, separate and remove the satellite radio / GPS splitter / cable...
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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