Section 14 (Anti-Lock Brake System): Diagnosis: Notes
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1992 Pontiac Bonneville, 1992 Oldsmobile Ninety-Eight, 1992 Oldsmobile Eighty-Eight, 1992 Cadillac Fleetwood, and 1992 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
The Electronic Brake Control Module (EBCM) has self-diagnostic capability, which can detect system failures. Fault codes stored by EBCM can be displayed using Tech 1 Scan Tester.
Begin ABS/TCS system diagnosis with PRE-DIAGNOSTIC INSPECTION procedure. If failures are found during pre-diagnostic inspection, perform necessary repairs and then proceed with ABS/TCS FUNCTIONAL CHECK chart. If no failures are found during pre-diagnostic inspection, go to ABS/TCS FUNCTIONAL CHECK chart under SELF-DIAGNOSTIC CHARTS. The ABS/TCS FUNCTIONAL CHECK chart will either indicate ABS/TCS system is functioning properly or direct the technician to various diagnostic procedures such as diagnostic charts, symptom diagnosis or BRAKE warning light diagnosis.