Electronic Power Assist Steering Component Testing (EPAS)
- Inspection and Verification
- Known Concerns
- DTC/Symptom Selection
- PSCM 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 C1110 Power Steering Calibration Data
- 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 U0102 Lost Communication with Transfer Case Control Module
- 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 U0212 Lost Communication with Steering Column Control Module
- DTC U023A Lost Communication with Image Processing Module A
- DTC U023B Lost Communication with Image Processing Module B
- DTC U0252 Lost Communication with Lighting Control Module-Rear "B"
- DTC U0300 Internal Control Module Software Incompatibility
- DTC U0401 Invalid Data Received from ECM/PCM A
- DTC U0403 Invalid Data Received From Tansfer Case Control Module
- 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 U053C Invalid Data Received from Image Processing Module B
- DTC U0553 Invalid Data Received from Lighting Control Module-Rear "B"
- DTC U0554 Invalid Data Received from Accessory Protocol Interface Module
- DTC U2011 Motor
- DTC U2016 Control Module Main Software
- DTC U2017 Control Module Software #2 Supervision Software Failure
- DTC U2100 Initial Configuration Not Complete
- DTC U2101 Control Module Configuration Incompatible
- DTC U3000 Control Module
- DTC U3001 Control Module Improper Shutdown Performance
- 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 STEERING MALFUNCTION SERVICE NOW
- Message Center Displays STEERING ASSIST MALFUNCTION SERVICE REQUIRED
- Message Center Displays STEERING LOSS STOP SAFELY
- 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, Intermittent or Inconsistent Assist
- Noise When Turning - Noticed More In The Interior
- Poor Returnability, Sticky Steering or Binding
- Steering System Pull, Drift or Wander
- Steering Wheel Vibrates or Resists Turning
- PSCM DTC Index
- Pinpoint Tests
- Pinpoint Tests A: PSCM Wire Harness Circuit Integrity Test
- Pinpoint Tests AA: PSCM Configuration Concerns
- 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 Test AF: ABS Module DTC C0051 Concerns With The PSCM - Mechanical
- Pinpoint Test AG: ABS Module DTC C0051 Concerns With The PSCM - Electrical
- Pinpoint Tests B: DTCs C1B00, C200B, C200C, U2011 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, Sticky Steering or Binding
- 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