Section 16 (Anti-Lock Brake System): Diagnosis: Notes
WARNING: This page is about a different car, the 1992 Buick Park Avenue and 1992 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
The Electronic Brake Control Module/Electronic Brake Traction Control Module (EBCM/EBTCM) has self-diagnostic capability, which can detect system failures. Fault codes stored by EBCM/EBTCM can be displayed using Tech 1 scan tool.
Begin ABS/TCS system diagnosis with PRE-DIAGNOSTIC INSPECTION . If failures are found during pre-diagnostic inspection, perform necessary repairs, and then proceed with ABS/TCS FUNCTIONAL CHECK under SELF-DIAGNOSTIC TESTS. The ABS/TCS FUNCTIONAL CHECK will either indicate ABS/TCS system is functioning properly or direct the technician to appropriate diagnostic procedures such as diagnostic tests, symptom diagnosis or BRAKE warning light diagnosis.