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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 487 (Mirror System) >> Diagnostic Information and Procedures >> DTC B1640: Mirror Heater Circuit >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

B1640 01 

A short to voltage is detected on the mirror heating element supply voltage circuit.

B1640 02 

A short to ground is detected on the mirror heating element supply voltage circuit when attempting to activate the heated mirror.

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