Diagnostic Procedure
- If a diagnostic system check has not been performed for system of concern, see DIAGNOSTIC SYSTEM CHECK table under SELF-DIAGNOSTIC SYSTEM. If a self diagnostic check has been performed, go to next step.
- If DTC B1000 has been received, and is stored as a current and history DTC, replace BCM. See BODY CONTROL MODULE under REMOVAL & INSTALLATION. If DTC B1000 is stored as a history DTC only, clear DTC with scan tool and retest system for normal operation.