Diagnostic Test
- CHECK FOR A DTC C2202-ORIGINAL VIN MISMATCH/MISSING NOTE: This DTC must be active for the results of this test to be valid.
- Turn the ignition on.
- With the scan tool, read and record DTCs.
- With the scan tool, read and record Freeze Frame information.
- Perform ECU initialization with drive test. Refer to ABS VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure
- Start the engine.
- With the scan tool, read and record DTCs.
Does the scan tool display: C2202-ORIGINAL VIN MISMATCH/MISSING?
Yes
- Go to step 2
No
- ABM has learned new VIN.
- Perform ABS VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure .
- WRONG VIN PROGRAMMED INTO VEHICLE
Is the VIN stored in the ABM and PCM the same?
Yes
- Replace the Anti-Lock Brake Module in accordance with the Service Information.
- Perform ABS VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure .
No
- Reprogram the VIN per service information.
- Perform ABS VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Standard Procedure .