Diagnosis & Testing: Notes

The Electronic Brake Control Module (EBCM) contains a self-diagnostic capability to detect system failures. When a fault code is set, the EBCM may disable ABS and/or ASR portion of system and illuminate SERVICE ABS and/or SERVICE ASR lights for duration of ignition cycle. Fault codes stored by EBCM can be displayed using Central Control Module (CCM) on-board diagnostics or Tech 1 "Scan" tester with appropriate cartridge.

Start ABS/ASR system diagnosis with PRE-DIAGNOSTIC INSPECTION. See PRE-DIAGNOSTIC INSPECTION . If failures are found during pre-diagnostic inspection, perform necessary repairs and perform ABS/ASR FUNCTIONAL CHECK chart. If no failures were found during pre-diagnostic inspection, perform ABS/ASR FUNCTIONAL CHECK chart under DIAGNOSTIC CHARTS. From ABS/ASR FUNCTIONAL CHECK chart, you will be directed to enter diagnostics and retrieve codes, perform symptom diagnosis, perform brake system warning light diagnosis, or ABS/ASR functional check chart will indicate ABS/ASR system is functioning properly.