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 SBI 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.