Electronic Power Assist Steering Component Testing

• Inspection And Verification
• Known Concerns
• DTC Symptom Index
  • DTC Index
    • Notes
    • DTC B1304: Electronic Power Assisted Steering System
      • Description
    • DTC B1D23: Overheat Sensor
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC C100C: Steering Tracking
      • Description
    • DTC C1023: Pull Drift Compensation Limit Exceeded
      • Description
    • DTC C102D: High Friction Inside Power Steering
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC C1B00: Steering Angle Sensor
      • Description
      • Possible Causes
      • Diagnostic Aids
    • DTC C200B: Steering Shaft Torque Sensor 1
      • Description
      • Possible Causes
      • Diagnostic Aids
    • DTC C200C: Steering Shaft Torque Sensor 2
      • Description
    • DTC C200D: Motor Rotation Angle Sensor
      • Description
      • Possible Causes
      • Diagnostic Aids
    • DTC P061A: Internal Control Module Torque Performance
      • Description
    • DTC P07AE: Transmission Friction Element G Performance/Stuck Off
      • Description
    • DTC P160C: Control Module Software Performance
      • Description
    • DTC U0001: High Speed CAN Communications Bus
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U0100: Lost Communication with ECM/PCM A
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U0121: Lost Communication with the Anti-lock Brake System (ABS) Control Module
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U0122: Lost Communication with the Vehicle Dynamics Module (VDM)
      • Description
    • DTC U0126: Lost Communication With Steering Angle Sensor Module
      • Description
    • DTC U0140: Lost Communication With Body Control Module
      • Description
    • DTC U0151: Lost Communication With Restraints Control Module
      • Description
    • DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
      • Description
    • DTC U0159: Lost Communication With Parking Assist Control Module A
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U019B: Lost Communication with Battery Charger Control Module
      • Description
    • DTC U023A: Lost Communication with Image Processing Module A
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U0300: Internal Control Module Software Incompatibility
      • Description
    • DTC U0401: Invalid Data Received from ECM/PCM A
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U0415: Invalid Data Received from ABS Control Module
      • Description
      • Possible Causes
      • Diagnostic Aids
    • DTC U0416: Invalid Data Received from Vehicle Dynamics Control Module
      • Description
    • DTC U0422: Invalid Data Received from Body Control Module
      • Description
    • DTC U0423: Invalid Data Received from Instrument Panel Cluster Control Module
      • Description
    • DTC U0428: Invalid Data Received from the Steering Angle Sensor Module
      • Description
    • DTC U0452: Invalid Data Received From RCM
      • Description
    • DTC U045A: Invalid Data Received From Parking Assist Control Module A
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U053B: Invalid Data Received from Image Processing Module A
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U2011: Motor
      • Description
    • DTC U2016: Control Module Main Software
      • Description
      • Possible Causes
      • Diagnostic Aids
    • DTC U2017: Control Module Software #2 Supervision Software Failure
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U2100: Initial Configuration Not Complete
      • Description
      • Possible Causes
      • Diagnostic Aids
      • Action
    • DTC U2101: Control Module Configuration Incompatible
      • Description
    • DTC U3000: Control Module
      • Description
      • Possible Causes
      • Diagnostic Aids
    • DTC U3001: Control Module Improper Shutdown Performance
      • Description
      • Possible Causes
      • Action
    • DTC U3002: Vehicle Identification Number
      • Description
    • DTC U3003: Battery Voltage
      • Description
      • Possible Causes
      • Diagnostic Aids
  • 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 FAULT SERVICE NOW
    • Message Center Displays STEERING ASSIST FAULT 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
• Pinpoint Tests
  • Pinpoint Tests A: PSCM Wire Harness Circuit Integrity Test
    • Normal Operation
  • Pinpoint Tests AA: DTC U2100: Initial Configuration Not Complete
    • Normal Operation
  • Pinpoint Tests AB: DTC U2100: Steering Column Mounted EPAS - Initial Configuration Not Complete
    • Normal Operation
  • 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 and U3000: Steering Angle Sensor, Steering Shaft Torque Sensor 1, Steering Shaft Torque Sensor 2, Motor and Control Module - Failure or Erratic
    • Normal Operation
  • Pinpoint Tests C: DTC U3000: Control Module - Signal Calculation Failure and Component Internal Failure
    • Normal Operation
  • Pinpoint Tests D: DTC U3000: Control Module - Actuator Stuck Open
    • Normal Operation
  • Pinpoint Tests E: DTC C1B00: Steering Angle Sensor - Signal Erratic
    • Normal Operation
  • Pinpoint Tests F: DTC P07AE: Transmission Friction Element G Performance/Stuck Off - Component Failure
    • Normal Operation
  • Pinpoint Tests G: Excessive Steering Wheel Play
  • Pinpoint Tests H: Steering System Pull, Drift, Wander or Steering Wheel is Off Center
    • Normal Operation
  • Pinpoint Tests I: Poor Returnability, Sticky Steering or Binding
    • Normal Operation
  • Pinpoint Tests J: Shimmy
    • Normal Operation
  • Pinpoint Tests K: Damaged Steering Gear Bellows Boots
    • Normal Operation
  • 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
    • Notes
    • Normal Operation
  • Pinpoint Tests N: Steering Column Mounted EPAS - PSCM Wire Harness Circuit Integrity Test
    • Notes
    • Normal Operation
  • Pinpoint Tests O: DTC C100C: Steering Column Mounted EPAS - Steering Tracking
    • Notes
    • Normal Operation
  • Pinpoint Tests P: DTC C1B00: Steering Column Mounted EPAS - Steering Angle Sensor Calibration Check
    • Notes
    • Normal Operation
  • Pinpoint Tests Q: Steering Column Mounted EPAS - Shimmy
    • Notes
    • Normal Operation
  • 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
    • Normal Operation
  • Pinpoint Tests U: DTC U0428: Invalid Data Received From The Steering Angle Sensor Module (SASM)
    • Normal Operation
  • Pinpoint Tests V: DTC C102D: High Friction Inside Power Steering
    • Normal Operation
  • Pinpoint Tests W: DTCs C1B00, C200B and U3000: Steering Angle Sensor, Steering Shaft Torque Sensor 1 and Control Module - Signal or Internal Failure
    • Normal Operation
  • Pinpoint Tests X: Poor Returnability or Sticky Steering
    • Normal Operation
  • Pinpoint Tests Y: DTCs C200D, P061A, P160C, U2011 and U3000: EPAS Internal Failure DTCs
    • Normal Operation
  • Pinpoint Tests Z: DTC U0300: Internal Control Module Software Incompatibility
    • Normal Operation