Symptom Related Diagnostic Procedures

ABS WARNING INDICATOR






1. INSTRUMENT CLUSTER ABS INDICATOR
1. Turn the ignition off.
2. Observe the ABS indicator lamp.
3. Turn the ignition on.

Select the appropriate condition for the ABS indicator lamp:

Illuminates for several seconds and turns off

- Go To 2

Illuminates continuously

- With the scan tool, read DTCs. Perform the appropriate diagnostic procedure.
- Perform the ABS VERIFICATION TEST ABS Verification Test.

Does not illuminate

- Replace the Instrument Cluster.
- Perform the ABS VERIFICATION TEST ABS Verification Test.

2. ANTI-LOCK BRAKE SYSTEM DTC PRESENT
1. Turn the ignition on.
2. With the scan tool, select View DTCs in the Anti-lock Brake Module.

Are there any DTCs present?

Yes

- Perform the appropriate diagnostic procedure.
- Perform the ABS VERIFICATION TEST ABS Verification Test.

No

- Inspect the related wiring harness and connector terminals. Monitor the scan tool parameters while wiggle testing the related harness and connectors. Search for any Technical Service Bulletins (TSB) that may apply. If no problems are found, test is complete.
- Perform the ABS VERIFICATION TEST ABS Verification Test.