Diagnostic Test
- VERIFY DTC IS ACTIVE
- Turn the ignition on.
- With the scan tool, read and record ABS DTCs.
- With the scan tool, read and record Environmental Data to help identify the conditions in which the DTC was set.
- With the scan tool, erase ABS DTCs.
- Cycle the ignition switch.
- With the scan tool, read ABS DTCs.
Does this DTC reset?
Yes
- Go To 2
No
- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
- Perform the ABS INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE .
- CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCs
- With the scan tool, read all active DTCs from all CAN C Bus modules.NOTE:
Check for CAN C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.
Does the scan tool display any active DTCs related to the conditions listed above?
Yes
- Diagnose and repair the DTCs in this service information . Refer to DIAGNOSIS AND TESTING .
No
- Go To 3
- With the scan tool, read all active DTCs from all CAN C Bus modules.
- CHECK IF TCM DTCs ARE PRESENT
- With the scan tool, read TCM DTCs.
Are any TCM DTCs present?
Yes
- Diagnose and repair the DTCs. Refer to DIAGNOSIS AND TESTING .
No
- Using the schematics as a guide, check the Anti-Lock Brake Module pins, terminals, and connectors for corrosion, damage, and terminal push out. Pay particular attention to all Communication circuits. If no problems are found, replace the Anti-Lock Brake Module in accordance with the Service Information.
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- With the scan tool, read TCM DTCs.