Heated Mirrors

The mirrors heat during the defrost/defog cycles for the rear window. The heated mirrors are connected to the DDM and the PDM. When the standard Body Control Module (BCM) receives the class 2 message from the Instrument Panel Cluster (IPC) that the rear window defrost has been turned ON, it sends the message on to the DDM. When the DDM receives the class 2 message from the BCM commanding the heated mirrors ON, it supplies the voltage and ground to the heater element in the driver outside mirror and sends a power door serial data message to the PDM to command the passenger side mirror heater ON. The PDM supplies the voltage and ground to the heater element in the passenger outside mirror.