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Self-Diagnostic System: Notes

CAUTION: If vehicle is equipped with THEFTLOCK(R) (radio anti-theft feature), obtain secret code from customer. Disable THEFTLOCK(R) prior to disconnecting power to vehicle or removing RADIO fuse. See RADIO ANTI-THEFT FEATURE (THEFTLOCK(R)) DISABLING  under PROGRAMMING. Enable THEFTLOCK(R) after restoring power to vehicle or reinstalling RADIO fuse. See RADIO ANTI-THEFT FEATURE (THEFTLOCK(R)) ENABLING  under PROGRAMMING.

Body Control Module (BCM) is equipped with a self-diagnostic system which detects system failures or abnormalities. When a malfunction occurs, BCM will store a numerical Diagnostic Trouble Code (DTC). DTCs are recorded as current or history/intermittent failures. See CURRENT DIAGNOSTIC TROUBLE CODES  and HISTORY/INTERMITTENT DIAGNOSTIC TROUBLE CODES  .