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 IF TOTALLY INTEGRATED POWER MODULE (TIPM) CAN BUS DTCS ARE PRESENT
- With the scan tool, read the TIPM DTCs.
Are there any TIPM CAN BUS DTCs present?
Yes
- Perform the appropriate diagnostic procedures. Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - DTCS P0691 TO U1148 or TOTALLY INTEGRATED POWER MODULE (TIPM) - DTCS P1078 TO P0463 .
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Using the schematics as a guide, check the Antilock 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 Antilock Brake Module accordance with Service Information. Refer to MODULE, ANTILOCK BRAKE SYSTEM, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
- With the scan tool, read the TIPM DTCs.