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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1557 (Door Lock System & Door Handles) >> Diagnostic Information and Procedures >> DTC B2976 >> Reference Information

Reference Information

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Schematic Reference 

Door Lock/Indicator Schematics 

Connector End View Reference 

Component Connector End Views

Description and Operation 

Door Ajar Indicator Description and Operation (w/AN3)  or Door Ajar Indicator Description and Operation (w/o AN3) 

Electrical Information Reference 

Scan Tool Reference 

Control Module References for scan tool information