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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System (Abs) - DTCS C0010-01 To C1200-17 >> DTC Troubleshooting >> C0051-29-Steering Angle Sensor (EPS) - Invalid Signal >> Diagnostic Test

Diagnostic Test

  1. VERIFY THE DTC IS ACTIVE 
    NOTE:

    This DTC must be active for the results of this test to be valid.

    1. Perform any Technical Service Bulletins (TSBs) that may apply.
    2. Ignition on.
    3. Using the scan tool, read and record DTCs.
    4. Using the scan tool, read and record Environmental Data.
    5. Using the scan tool, erase DTCs.
    6. Start the engine.
    7. Slowly turn the steering wheel from stop to stop.
    8. Using the scan tool, read and record DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

  2. INSPECT THE WHEEL ALIGNMENT, STEERING COLUMN AND INTERMEDIATE SHAFT FOR INCORRECT INSTALLATION OR DAMAGE 
    NOTE:

    If available, check the vehicle repair history for collision damage.

    1. Turn the ignition off.
    2. Inspect the vehicle for proper wheel alignment.
    3. Inspect the vehicle for damage causing tracking problems or steering wheel misalignment.
    4. Inspect the steering column and intermediate shaft for damage.

      Were any problems found?

      Yes 

      No 

      • Go To  3
  3. CHECK THE TERMINALS/CONNECTORS/WIRING HARNESS FOR DAMAGE 
    WARNING:

    To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

    NOTE:

    Proper Steering Angle Sensor (SAS) installation is crucial for proper operation.

    1. Inspect the Steering Angle Sensor (SAS).
    2. Check all related wiring for bruised, chafed, pierced, or partially broken wires.
    3. Check all related connectors for broken, bent, pushed out, or corroded terminals.

      Were any problems found?

      Yes 

      No