Diagnostic Test
- VERIFY THE DTC IS ACTIVE NOTE:
This DTC must be active for the results of this test to be valid.
- Perform any Technical Service Bulletins (TSBs) that may apply.
- Turn the ignition on.
- With the scan tool, record and erase the DTCs.
- Cycle the ignition switch from off to on.
- With the scan tool, read the DTCs.
Is the DTC active at this time?
Yes
- Go To 2
No
- Perform the ABS-INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE .
- CHECK BODY CONTROL MODULE (BCM) CAN BUS DTCS ARE PRESENT
- With the scan tool, read the BCM DTCs.
Are there any BCM CAN BUS DTCs present?
Yes
- Perform the appropriate diagnostic procedures. Refer to DIAGNOSIS AND TESTING .
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- 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, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- With the scan tool, read the BCM DTCs.