Section 543 (Electronic Power Assist Steering Component Testing)
WARNING: This page is about a different car, the 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
- Inspection And Verification
- Known Concerns
- DTC Symptom Index
- DTC Index
- Notes
- DTC B1304: Electronic Power Assisted Steering System
- DTC B1D23: Overheat Sensor
- DTC C100C: Steering Tracking
- DTC C1023: Pull Drift Compensation Limit Exceeded
- DTC C102D: High Friction Inside Power Steering
- DTC C1B00: Steering Angle Sensor
- DTC C200B: Steering Shaft Torque Sensor 1
- DTC C200C: Steering Shaft Torque Sensor 2
- DTC C200D: Motor Rotation Angle Sensor
- DTC P061A: Internal Control Module Torque Performance
- DTC P07AE: Transmission Friction Element G Performance/Stuck Off
- DTC P160C: Control Module Software Performance
- DTC U0001: High Speed CAN Communications Bus
- DTC U0100: Lost Communication with ECM/PCM A
- DTC U0121: Lost Communication with the Anti-lock Brake System (ABS) Control Module
- DTC U0122: Lost Communication with the Vehicle Dynamics Module (VDM)
- DTC U0126: Lost Communication With Steering Angle Sensor Module
- DTC U0140: Lost Communication With Body Control Module
- DTC U0151: Lost Communication With Restraints Control Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0159: Lost Communication With Parking Assist Control Module A
- DTC U019B: Lost Communication with Battery Charger Control Module
- DTC U023A: Lost Communication with Image Processing Module A
- DTC U0300: Internal Control Module Software Incompatibility
- DTC U0401: Invalid Data Received from ECM/PCM A
- DTC U0415: Invalid Data Received from ABS Control Module
- DTC U0416: Invalid Data Received from Vehicle Dynamics Control Module
- DTC U0422: Invalid Data Received from Body Control Module
- DTC U0423: Invalid Data Received from Instrument Panel Cluster Control Module
- DTC U0428: Invalid Data Received from the Steering Angle Sensor Module
- DTC U0452: Invalid Data Received From RCM
- DTC U045A: Invalid Data Received From Parking Assist Control Module A
- DTC U053B: Invalid Data Received from Image Processing Module A
- DTC U2011: Motor
- DTC U2100: Initial Configuration Not Complete
- DTC U2101: Control Module Configuration Incompatible
- DTC U3000: Control Module
- DTC U3002: Vehicle Identification Number
- DTC U3003: Battery Voltage
- Symptom Chart - Steering System and NVH
- Notes
- A Module Cannot Communicate With The PSCM
- The PSCM Cannot Communicate With The Diagnostic Scan Tool
- Open PSCM Fuse(s)
- Unable To Replicate Customer's Intermittent Assist Concern During A Test Drive
- Message Center Displays POWER STEERING ASSIST FAULT
- Message Center Displays SERVICE POWER STEERING
- Message Center Displays SERVICE POWER STEERING NOW
- Excessive Steering Wheel Play
- Front End Noise - During Acceleration (Tip-In) Or Deceleration (Tip-Out) May Occur With Braking
- Front End Noise - During Braking
- Front End Noise - Driving Straight On Smooth Roads
- Front End Noise - Over Bumps, Rough Roads, Dips, Depressions Or When Entering A Driveway
- Front End Noise - Turning At Slow Speeds Or During Parking Lot Maneuvers
- Lack of Assist, Inconsistent or Intermittent Assist
- Noise When Turning - Noticed More In The Interior
- Poor Returnability or Sticky Steering
- Steering System Pull, Drift or Wander
- DTC Index
- Pinpoint Tests
- Pinpoint Tests A: PSCM Wire Harness Circuit Integrity Test
- Pinpoint Tests AA: DTC U2100: Initial Configuration Not Complete
- Pinpoint Tests AB: DTC U2100: Steering Column Mounted EPAS - Initial Configuration Not Complete
- Pinpoint Tests AC: Front End Noise - During Bumps, Rough Roads, Dips, Depressions, Entering A Driveway, Turning At Slow Speeds Or During Parking Lot Maneuvers
- Pinpoint Tests AD: Front End Interior Cabin Noise When Turning
- Pinpoint Tests AE: Front End Noise - During Acceleration (Tip-In) Or Deceleration (Tip-Out)
- Pinpoint Tests B: DTCs C1B00, C200B, C200C, U2011, U2200 and U3000: Steering Angle Sensor, Steering Shaft Torque Sensor 1, Steering Shaft Torque Sensor 2, Motor and Control Module - Failure or Erratic
- Pinpoint Tests C: DTC U3000: Control Module - Signal Calculation Failure and Component Internal Failure
- Pinpoint Tests D: DTC U3000: Control Module - Actuator Stuck Open
- Pinpoint Tests E: DTC C1B00: Steering Angle Sensor - Signal Erratic
- Pinpoint Tests F: DTC P07AE: Transmission Friction Element G Performance/Stuck Off - Component Failure
- Pinpoint Tests G: Excessive Steering Wheel Play
- Pinpoint Tests H: Steering System Pull, Drift, Wander or Steering Wheel is Off Center
- Pinpoint Tests I: Poor Returnability or Sticky Steering
- Pinpoint Tests J: Shimmy
- Pinpoint Tests K: Damaged Steering Gear Bellows Boots
- Pinpoint Tests L: Front End Noise - Driving Straight On Smooth Roads
- Pinpoint Tests M: DTCs C1B00, C200B, C200C, C200D, U0300, U2011, U3000 and U3004: Steering Column Mounted EPAS - Steering Angle Sensor, Steering Shaft Torque Sensor 1, Steering Shaft Torque Sensor 2, Motor and Control Module - Failure or Erratic
- Pinpoint Tests N: Steering Column Mounted EPAS - PSCM Wire Harness Circuit Integrity Test
- Pinpoint Tests O: DTC C100C: Steering Column Mounted EPAS - Steering Tracking
- Pinpoint Tests P: DTC C1B00: Steering Column Mounted EPAS - Steering Angle Sensor Calibration Check
- Pinpoint Tests Q: Steering Column Mounted EPAS - Shimmy
- Pinpoint Tests R: Steering Column Mounted EPAS - Excessive Steering Wheel Play
- Pinpoint Tests S: Steering Column Mounted EPAS - Steering System Pull, Drift, Wander or Steering Wheel is Off Center
- Pinpoint Tests T: DTC C1023: Steering Tracking
- Pinpoint Tests U: DTC U0428: Invalid Data Received From The Steering Angle Sensor Module (SASM)
- Pinpoint Tests V: DTC C102D: High Friction Inside Power Steering
- Pinpoint Tests W: DTCs C1B00, C200B and U3000: Steering Angle Sensor, Steering Shaft Torque Sensor 1 and Control Module - Signal or Internal Failure
- Pinpoint Tests X: Poor Returnability or Sticky Steering
- Pinpoint Tests Y: DTCs C200D, P061A, P160C, U2011 and U3000: EPAS Internal Failure DTCs
- Pinpoint Tests Z: DTC U0300: Internal Control Module Software Incompatibility