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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1087 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2645 >> Conditions for Setting the DTC >> B2645 03

B2645 03

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The DTC will set when the BCM detects a short to ground in the ambient light sensor signal circuit.

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