Inspection and Verification
NOTE:
If a new ABS module is installed it must be reconfigured. For additional information, refer to MODULE CONFIGURATION
.
- Verify the customer concern.
- Verify the stoplamps operate correctly by applying and releasing the brake pedal with the ignition switch in the OFF position. If the stoplamps do not operate correctly, refer to EXTERIOR LIGHTING . If the stoplamps operate correctly, proceed to the next step.
- Verify that the PRNDL operates correctly on the instrument cluster. If the PRNDL does not operate correctly, refer to INSTRUMENT CLUSTER . If the PRNDL operates correctly, proceed to the next step.
- Visually inspect for obvious signs mechanical or electrical damage:
- If the concern remains after the inspection, connect the diagnostic tester to the data link connector (DLC) located beneath the instrument panel, and select the vehicle to be tested from the diagnostic tester menu. If the diagnostic tester does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connection of the data link connector to the vehicle.
- check that the ignition switch is in the RUN position.
- If the diagnostic tester still does not communicate with the vehicle, refer to the diagnostic tester manual.
- Carry out the diagnostic tool data link test. If diagnostic tester responds with:
- SCP or ISO circuit fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
- No response/not equipped for ABS module, Go To PINPOINT TEST A .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the ABS module.
- If the DTCs retrieved are related to the concern, go to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX to continue diagnostics.
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART to continue diagnostics.