With Traction Control

1. Verify the customer concern by operating the system.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If the inspection reveals an obvious concern(s) that can be readily identified, repair as required.
4. If a concern remains after the inspection, connect the New Generation STAR (NGS) Tester to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the NGS menu. If the NGS 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 NGS still does not communicate with the vehicle, refer to the New Generation STAR Tester manual.
6. Carry out the DATA LINK DIAGNOSTIC TEST. If the NGS responds with:
- CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, REFER to Module Communications Network.
- NO RESP/NOT EQUIP for anti-lock brake control module, GO to Pinpoint Test A. A Check Central Junction Box (CJB)
- SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the anti-lock brake control module.

7. If the DTCs retrieved are related to the concern, go to Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index to continue diagnostics. Pinpoint Tests
8. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures