Anti-Lock Brake System (ABS) Module

The anti-lock brake system (ABS) module is located under the battery tray in the lower left of the engine compartment. The ABS module provides diagnostic services via the module communications network on the Light Blue/White wire. A failure of the ABS module or on the Light Blue/White wire may cause the New Generation Star Tester to indicate a communication error. In the event the New Generation Star Tester fails to communicate with the ABS, diagnose by symptom. See SYMPTOM INDEX  table under SYSTEM TESTS.