Power Mirrors System Description - Control/Function
Power Mirror Defogger Function (With HVAC Control)
Manual Function
The power mirror defogger is controlled by the rear window defogger/mirror defogger switch.

Defogger Timer Function
The power mirror defogger system has the timer control function that is controlled by the HVAC control unit. The timer control operation by turning the vehicle to the ON mode, and then the rear window defogger/power mirror defogger switch ON. The timer operating time varies according to ambient temperature. If the rear window defogger/power mirror defogger switch is turned on when the timer is active, it toggles between ON and OFF every time the switch is pressed.
Power Mirror Defogger Function (With Climate Control and Without Keyless Access System)
Manual Function
The power mirror defogger is controlled by the rear window defogger/mirror defogger switch.

Defogger Timer Function
The power mirror defogger system has the timer control function that is controlled by the climate control unit. The timer control operation by turning the vehicle to the ON mode, and then the rear window defogger/power mirror defogger switch ON. The timer operating time varies according to ambient temperature. If the rear window defogger/power mirror defogger switch is turned on when the timer is active, it toggles between ON and OFF every time the switch is pressed.
Power Mirror Defogger Function (With Climate Control and Keyless Access System)
Power Mirror Defogger Manual Control
The power mirror defogger is controlled by the climate control unit. When the vehicle is in the ON mode, and the rear window defogger/power mirror defogger switch is pressed, the climate control unit sends the defogger ON signal via the B-CAN to the door multiplex control unit. The door multiplex control unit operated the driver's mirror defogger, and sends the defogger ON signal via the LIN line to the front passenger's power window switch to operate the front passenger's mirror defogger.

Defogger Timer Function
The power mirror defogger system has the timer control function that is controlled by the climate control unit. The timer control operation by turning the vehicle to the ON mode, and then the rear window defogger/power mirror defogger switch ON. The timer operating time varies according to ambient temperature. If the rear window defogger/power mirror defogger switch is turned on when the timer is active, it toggles between ON and OFF every time the switch is pressed.
Power Mirror Defogger Auto Control
When the door multiplex control unit receives a signal that the outside air temperature is 41 °F (5 °C) or below from the outside air temperature sensor, the door multiplex control unit automatically turns on the left and right power mirror defoggers within 10 seconds after the vehicle is in the ON mode. The power mirror defogger output automatically stops in 10 minutes as a result of its timer. If the door multiplex control unit receives the rear window defogger/power mirror defogger switch input signal from the climate control unit during the power mirror defogger output, the door multiplex control unit stops the auto operation function immediately.