Brakes

D601-THE CONTROL UNIT SOFTWARE IS FAULTY





For a complete wiring diagram consult Diagrams/Electrical Electrical Diagrams.


- When Monitored:

Ignition on, engine running.

- Set Condition:

8When the ABM/ESP recognizes an internal failure has occurred. One trip fault.








Diagnostic Test


1. ANTI-LOCK BRAKE MODULE

Check for any TSBs that may apply to this fault code.

Verify that the ABM is at the latest calibration level.

Check the ABM ground circuits with a test light connected to B+.

Check the ABM Fused B+ circuit with a test light connected to ground.

Check the ABM Main Relay circuits with a test light connected to ground.

Do the ABM power and ground circuits light the test light brightly.

Yes

- Replace and program the Anti-lock Brake Module.
- Perform ABS VERIFICATION TEST. Verification Tests

No

- Repair the circuit for an open or shorted condition.
- Perform ABS VERIFICATION TEST. Verification Tests