Rear Anti-Lock Brakes (RABS)

Inspection and Verification






1. Verify the customer concern by operating the vehicle and applying the brakes under different conditions to duplicate the condition.

2. Inspect to determine if one of the following mechanical or electrical concerns apply:






3. If the inspection reveals an obvious concern(s) that can be readily identified~ repair as required.

4. If the concern remains afier the inspection connect the scan tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:

^ check that the program card is properly installed.
^ check the connections to the vehicle.
^ check the ignition switch position.

5. If the scan tool still does not communicate with the vehicle~ refer to the scan tool manual.

6. Perform the DATA LINK DIAGNOSTIC TEST. If the scan tool responds with:

^ CKT914 CKT915 or CKT7O = ALL ECUS NO RESPINOT EQUIP refer to Module Communications Network.
^ NO RESP/NOT EQUIP for anti-lock brake control module Go To Pinpoint Test E.
^ SYSTEM PASSED retrieve and record the continuous diagnostic trouble codes (DTCs) erase the continuous DTCs and perform self-test diagnostics for the anti-lock brake control module.

7. If the DTCs retrieved are related to the concern~ go to ABS Control Module Diagnostic Trouble Code (DTC) Index to continue diagnostics.

8. If no DTCs related to the concern are retrieved proceed to the Symptom Chart to continue diagnostics.