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Home >> Jeep >> 2022 >> Cherokee Trailhawk >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Antilock Brake System (Abs) - DTCS C2200-44 To U140E-00 >> Diagnosis And Testing >> C2202-00-Original VIN Mismatch / Missing >> Diagnostic Test

Diagnostic Test

  1. VERIFY THE DTC IS ACTIVE 
    NOTE:

    After erasing ACTIVE DTCs it may be necessary for the Anti-lock Brake System (ABS) Module to go to sleep before the DTCs are cleared. IF the DTC is still ACTIVE after the clear command then Turn the ignition off, disconnect the Scan Tool, close the doors and wait until all indicators on the Cluster have gone out, typically about 30 seconds. 

    NOTE:

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

    1. Turn the ignition on.
    2. With the scan tool, erase DTCs.
    3. Turn ignition off.
    4. Turn the ignition on.
    5. Wait ten seconds.
    6. With the scan tool, read DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time.
  2. WRONG VIN PROGRAMMED IN PCM 
    1. Ignition on, engine not running.
    2. With the scan tool, read the VIN in the PCM.
    3. Compare VIN in the PCM to the vehicle VIN.

      Is the correct VIN programmed in the PCM?

      Yes 

      • Go To  3

      No 

      • Program the correct VIN into the PCM. Follow the VIN programing procedure in the PCM/ECM reprogramming procedure. Refer to MODULE PROGRAMMING .
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  3. VERIFY THE BCM PROXI CONFIGURATION ALIGNMENT ROUTINE WAS PERFORMED 
    1. In the Body Control Module (BCM) with the scan tool, under "Miscellaneous Functions" run the "PROXI Configuration Alignment" routine.
    2. With the scan tool, erase the ABS DTCs.
    3. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of ten seconds.
    4. With the scan tool, read the ABS DTCs.

      Does the DTC remain active?

      Yes 

      • Using the schematics as a guide, check the Anti-Lock Brake System (ABS) Module pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Anti-Lock Brake Module accordance with Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL .
      • Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time.
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