System Operation

Rear View Mirrors - Exterior, Heated

System Operation

System Diagram





Network Message Chart

FCIM (Front Controls Interface Module) Module Network Input Messages





HVAC (Heating, Ventilation, and Air Conditioning) Module Network Input Messages







Rear View Mirrors - Exterior, Heated

The rear window defrost switch controls operation of the heated exterior mirror glass. The heated exterior mirror glass only operates when the rear window defrost system is active. The heated exterior rear view mirror glass deactivates when the rear window defrost deactivates. The heated mirror glass receives voltage from the rear window defrost relay located inside the BJB (Battery Junction Box). The LH (Left Hand) and RH (Right Hand) heated mirror glass does not share the same ground.