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Anti-Lock Brakes with Traction Control and Stability Assist

Note: The stability assist module must be reconfigured upon replacement.

1. Verify the customer's concern by operating the vehicle to duplicate the condition.
2. Verify the stoplamps operate correctly by depressing and releasing the brake pedal with the ignition switch in the OFF position. If the stoplamps do not operate correctly, refer to Lighting and Horns. If the stoplamps operate correctly, proceed to the next step.
3. Verify the PRNDL operates correctly on the instrument cluster. If the PRNDL does not operate correctly, refer to Instrument Panel, Gauges and Warning Indicators. If the PRNDL operates correctly, proceed to the next step.

Visual Inspection Chart:





4. Inspect to determine if one of the following mechanical or electrical concerns apply:
5. If the concern remains after the inspection, connect the NGS Tester to the data link connector (DLC) located beneath the instrument panel, and select the vehicle to be tested from the NGS Tester menu. If the NGS 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.
6. If the NGS Tester still does not communicate with the vehicle, refer to the New Generation STAR Tester manual.
7. Carry out the DATA LINK DIAGNOSTIC TEST.
If NGS Tester responds with:
- CKT914, CKT91 5 or CKT70 = ALL ECUS NO RESP NOT EQUIP, refer to Module Communications Network.
- NO RESP NOT EQUIP for stability assist module, go to Pinpoint Test A.A: No Communication With the Stability Assist
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the self-test diagnostics for the stability assist module.
8. If the DTCs retrieved are related to the concern, go to Stability Assist Module Diagnostic Trouble Code (DTC) Index to continue diagnostics.Stability Assist Diagnostic Trouble Codes (DTCs) Index
9. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.Symptom Related Diagnostic Procedures