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Home >> Jeep >> 2022 >> Compass Latitude, FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Antilock Brake System (Abs) (Continental) - DTCS C0044-28 To C10D0-92 >> DTC Troubleshooting >> C0051-28-Steering Wheel Position Sensor - Signal Bias Level Out Of Range / Zero Adjustment Failure >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    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. Turn the ignition on.
    3. With the scan tool, read DTCs and record on the repair order.
    4. With the scan tool, read and record Environmental Data.
    5. With the scan tool, erase ABS DTCs.
    6. Test drive the vehicle straight with speeds above 15 km/h (9 mph).
    7. Stop and park the vehicle.
    8. Slowly turn the steering wheel from stop to stop.
    9. With the scan tool, read ABS DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK FOR ELECTRIC POWER STEERING (EPS) OR COMMUNICATION RELATED DTCS 
    1. Refer to the recorded DTCs.

      Are there any other EPS or Communication related DTCs active or pending?

      Yes 

      No 

      • Go To  3
  3. 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 

      • Repair as necessary. With the scan tool, under "Miscellaneous Functions" perform the Steering Angle Sensor Calibration routine.
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE STEERING ANGLE 
    1. Start the engine.
    2. Make sure the steering wheel is centered and the wheels are pointing straight ahead.
    3. With the scan tool, go to the EPS Module.
    4. With the scan tool, under "Miscellaneous Functions" perform the Steering Angle Sensor Calibration routine.
    5. Using the scan tool, erase DTCs.
    6. Test drive the vehicle straight with speeds above 15 km/h (9 mph).
    7. With scan tool, monitor the steering angle under "Data Display" in the EPS Module.

      Is the Steering Angle reading within ±8° of 0°?

      Yes 

      No 

      • Go To  5
  5. CHECK THE CLOCKSPRING FOR PROPER INSTALLATION 
    NOTE:

    The Clockspring is internal to the SCCM.

    NOTE:

    Proper Clockspring installation is crucial for proper operation.

    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.

    1. Turn the ignition off.
    2. Verify that the Clockspring is properly installed.

      Is the Clockspring properly installed?

      Yes 

      • Go To  6

      No 

  6. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect the EPS Module harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    5. Connect the EPS Module harness connectors. Be certain that the harness connectors are fully seated and the connector locks are fully engaged.
    6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Connect the related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
    9. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    10. With the scan tool, read EPS Module DTCs.

      Did the DTC return?

      Yes 

      No 

  7. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect the ABS Module harness connector.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    5. Connect the ABS Module harness connector. Be certain that the harness connector is fully seated and the connector lock is fully engaged.
    6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Connect the related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
      WARNING:

      To avoid possible serious or fatal injury, check brake capability is available before road testing.

    9. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    10. With the scan tool, read ABS Module DTCs.

      Did the DTC return?

      Yes 

      No 

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