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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 912 (Theft Deterrent System) >> Diagnostic Information and Procedures >> Content Theft Deterrent (CTD) Does Not Disarm with Key Lock >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, verify the scan tool Door Key Cyl. Unlock Switch parameter cycles between Idle and Unlock while turning the driver door lock cylinder with the vehicle key.

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