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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 888 (Mirror System) >> Diagnostic Information and Procedures >> DTC B1640 >> Diagnostic Fault Information

Diagnostic Fault Information

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.
DTC B1640

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Mirror Heating Element Supply Voltage B1640 02 1 B1640 01 -
Low Reference - 1 1 -
1. Heated Mirror Malfunction
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