Lincoln Aviator 2020-2022 Service Manual / Chassis / Steering System / Power Steering / Description and Operation - Power Steering - Overview

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.

    Description and Operation - Adaptive Steering - System Operation and Component Description

    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...

    Description and Operation - Power Steering - System Operation and Component Description

    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:

    Lincoln Aviator 2020-2022 Service Manual: Diagnosis and Testing - Vehicle Dynamic Suspension - Vehicles With: Air Suspension


    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   SUMA B1041:52 Levelling Control: Not Activated   GO to Pinpoint Test W   SUMA C1043:00 Pressure Decrease Too Slow From Reservoir: No Sub Type Information   GO to Pinpoint Test M   SUMA C104C:11 Left Rear Spring Rate Valve: Circuit Short To Ground   GO to Pinpoint Test E   SUMA C104C:12 Left Rear Spring Rate Valve: Circuit Short To Battery   GO to Pinpoint Test E   SUMA C104C:13 Left Rear Spring Rate Valve: Circuit Open   GO to Pinpoint Test E   SUMA C104C:1A Left Rear Spring Rate Valve: Circuit Resistance Below Threshold   GO to Pinpoint Test E   SUMA C104C:1F Left Rear Spring Rate Valve: Circuit Intermittent   GO to Pinpoint Test E   SUMA C104D:11 Right Front Spring Rate Valve: Circuit Short To Ground   GO to Pinpoint Test D   SUMA C104D:12 Right Front Spring Rate Valve: Circuit Short To Battery   GO to Pinpoint Test D   SUMA C104D:13 Right Front Spring Rate Valve: Circuit Open   GO to Pinpoint Test D   SUMA C104D:1A Right Front Spring Rate Valve: Circuit Resistance Below Threshold   GO to Pinpoint Test D   SUMA C104D:1F Right Front Spring Rate Valve: Circuit Intermittent   GO to Pinpoint Test D   SUMA C104E:11 Right Rear Spring Rate Valve: Circuit Short To Ground   GO to Pinpoint Test F   SUMA C104E:12 Right Rear Spring Rate Valve: Circuit Short To Battery   GO to Pinpoint Test F   SUMA C104E:13 Right Rear Spring Rate Valve: Circuit Open   GO to Pinpoint Test F   SUMA C104E:1A Right Rear Spring Rate Valve: Circuit Resistance Below Threshold   GO to Pinpoint Test F   SUMA C104E:1F Right Rear Spring Rate Valve: Circuit Intermittent   GO to Pinpoint Test F   SUMA C104F:11 Left Front Spring Rate Valve: Circuit Short To Ground   GO to Pinpoint Test C   SUMA C104F:12 Left Front Spring Rate Valve: Circuit Short To Battery   GO to Pinpoint Test C   SUMA C104F:13 Left Front Spring Rate Valve: Circuit Open   GO to Pinpoint Test C   SUMA C104F:1A Left Front Spring Rate Valve: Circuit Resistance Below Threshold   GO to Pinpoint Test C   SUMA C104F:1F Left Front Spring Rate Valve: Circuit Intermittent   GO to Pinpoint Test C   SUMA C1124:07 Height Sensor(s): Mechanical Failures   GO to Pinpoint Test G   SUMA C1124:11 Height Sensor(s): Circuit Short To Ground   GO to Pinpoint Test H   SUMA C1124:12 Height Sensor(s): Circuit Short To Battery   GO to Pinpoint Test H   SUMA C1124:54 Height Sensor(s): Missing Calibration   GO to Pinpoint Test U   SUMA C1A03:2A Left Front Height Sensor: Stuck in Range   GO to Pinpoint Test I   SUMA C1A03:34 Left Front Height Sensor: Signal High Time Less Than Minimum   GO to Pinpoint Test I   SUMA C1A03:35 Left Front Height Sensor: Signal High Time Greater Than Maximum   GO to Pinpoint Test I   SUMA C1A03:36 Left Front Height Sensor: Signal Frequency Too Low   GO to Pinpoint Test I   SUMA C1A03:37 Left Front Height Sensor: Signal Frequency Too High   GO to Pinpoint Test I   SUMA C1A03:84 Left Front Height Sensor: Signal Below Allowable Range   GO to Pinpoint Test I   SUMA C1A03:85 Left Front Height Sensor: Signal Above Allowable Range   GO to Pinpoint Test I   SUMA C1A04:2A Right Front Height Sensor: Stuck in Range   GO to Pinpoint Test J   SUMA C1A04:34 Right Front Height Sensor: Signal High Time Less Than Minimum   GO to Pinpoint Test J   SUMA C1A04:35 Right Front Height Sensor: Signal High Time Greater Than Maximum   GO to Pinpoint Test J   SUMA C1A04:36 Right Front Height Sensor: Signal Frequency Too Low   GO to Pinpoint Test J   SUMA C1A04:37 Right Front Height Sensor: Signal Frequency Too High   GO to Pinpoint Test J   SUMA C1A04:84 Right Front Height Sensor: Signal Below Allowable Range   GO to Pinpoint Test J   SUMA C1A04:85 Right Front Height Sensor: Signal Above Allowable Range   GO to Pinpoint Test J   SUMA C1A05:2A Left Rear Height Sensor: Stuck in Range   GO to Pinpoint Test K   SUMA C1A05:34 Left Rear Height Sensor: Signal High Time Less Than Minimum   GO to Pinpoint Test K   SUMA C1A05:35 Left Rear Height Sensor: Signal High Time Greater Than Maximum   GO to Pinpoint Test K   SUMA C1A05:36 Left Rear Height Sensor: Signal Frequency Too Low   GO to Pinpoint Test K   SUMA C1A05:37 Left Rear Height Sensor: Signal Frequency Too High   GO to Pinpoint Test K   SUMA C1A05:84 Left Rear Height Sensor: Signal Below Allowable Range   GO to Pinpoint Test K   SUMA C1A05:85 Left Rear Height Sensor: Signal Above Allowable Range   GO to Pinpoint Test K   SUMA C1A06:2A Right Rear Height Sensor: Stuck in Range   GO to Pinpoint Test L   SUMA C1A06:34 Right Rear Height Sensor: Signal High Time Less Than Minimum   GO to Pinpoint Test L   SUMA C1A06:35 Right Rear Height Sensor: Signal High Time Greater Than Maximum   GO to Pinpoint Test L   SUMA C1A06:36 Right Rear Height Sensor: Signal Frequency Too Low   GO to Pinpoint Test L   SUMA C1A06:37 Right Rear Height Sensor: Signal Frequency Too High   GO to Pinpoint Test L   SUMA C1A06:84 Right Rear Height Sensor: Signal Below Allowable Range   GO to Pinpoint Test L   SUMA C1A06:85 Right Rear Height Sensor: Signal Above Allowable Range   GO to Pinpoint Test L   SUMA C1A20:00 Pressure Increase Too Slow When Filling Reservoir: No Sub Type Information   GO to Pinpoint Test M   SUMA C1A27:09 Compressor: Component Failures   GO to Pinpoint Test N   SUMA C1A27:63 Compressor: Circuit/Component Protection Time-Out   GO to Pinpoint Test N   SUMA C1A27:98 Compressor: Component Or System Over Temperature   GO to Pinpoint Test N   SUMA C1A27:99 Compressor: Exceeded Learning Limit   GO to Pinpoint Test N   SUMA C1A31:63 Left Front Corner Valve: Circuit/Component Protection Time-Out   GO to Pinpoint Test AD   SUMA C1A32:63 Right Front Corner Valve: Circuit/Component Protection Time-Out   GO to Pinpoint Test AD   SUMA C1A33:63 Left Rear Corner Valve: Circuit/Component Protection Time-Out   GO to Pinpoint Test AD   SUMA C1A34:63 Right Rear Corner Valve: Circuit/Component Protection Time-Out   GO to Pinpoint Test AD   SUMA C1A36:63 Exhaust Valve: Circuit/Component Protection Time-Out   GO to Pinpoint Test AD   SUMA U0100:87 Lost Communication With ECM / PCM: Missing Message   GO to Pinpoint Test O   SUMA U0121:87 Lost Communication With Anti-Lock Brake System (ABS) Control Module: Missing Message   GO to Pinpoint Test P   SUMA U0122:87 Lost Communication With Vehicle Dynamics Control Module: Missing Message   GO to Pinpoint Test Q   SUMA U0131:87 Lost Communication With Power Steering Control Module "A": Missing Message   GO to Pinpoint Test R   SUMA U0140:87 Lost Communication With Body Control Module: Missing Message   GO to Pinpoint Test S   SUMA U0146:87 Lost Communication With Serial Data Gateway "A": Missing Message   GO to Pinpoint Test T   SUMA U0401:00 Invalid Data Received from ECM/PCM A: No Sub Type Information   GO to Pinpoint Test X   SUMA U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A": No Sub Type Information   GO to Pinpoint Test Y   SUMA U0416:00 Invalid Data Received From Vehicle Dynamics Control Module: No Sub Type Information   GO to Pinpoint Test Z   SUMA U0420:00 Invalid Data Received from Power Steering Control Module "A": No Sub Type Information   GO to Pinpoint Test AA   SUMA U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information   GO to Pinpoint Test AB   SUMA U0447:00 Invalid Data Received From Serial Data Gateway "A": No Sub Type Information   GO to Pinpoint Test AC   SUMA U2100:00 Initial Configuration Not Complete: No Sub Type Information   GO to Pinpoint Test V   SUMA U2100:56 Initial Configuration Not Complete: Invalid/Incompatible Configuration   GO to Pinpoint Test V   SUMA U3000:04 Control Module: System Internal Failures   GO to Pinpoint Test V   SUMA U3000:45 Control Module: Program Memory Failure   GO to Pinpoint Test V   SUMA U3000:46 Control Module: Calibration/Parameter Memory Failure   GO to Pinpoint Test V   SUMA U3000:47 Control Module: Watchdog/Safety µC Failure   GO to Pinpoint Test V   SUMA U3000:48 Control Module: Supervision Software Failure   GO to Pinpoint Test V   SUMA U3003:16 Battery Voltage: Circuit Voltage Below Threshold   GO to Pinpoint Test A   SUMA U3003:17 Battery Voltage: Circuit Voltage Above Threshold   GO to Pinpoint Test B Symptom Chart Symptom Chart: Vehicle Dynamic Suspension Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...

    Lincoln Aviator 2020-2022 Service Manual: Removal and Installation - Wheel Knuckle


    Special Tool(s) / General Equipment 204-592Separator, Lower Arm Ball JointTKIT-2006C-FFMFLMTKIT-2006C-LMTKIT-2006C-ROW Tie Rod End Remover Removal NOTICE: Suspension fasteners are critical parts that affect the performance of vital components and systems...

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    Fastening the Seatbelts

    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.

    Lincoln Aviator. Fastening the Seatbelts

    To unfasten, press the release button and remove the tongue from the buckle.

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