Outline
Fogging is cleared from the rear window and outer mirror glass by heating of the filament.
Structural view
System wiring diagram
Vehicles with full-auto air conditioner system
Vehicles with manual air conditioner system
Construction
Rear window defroster
The rear window defroster filament is inside the rear window glass.
Heated outer mirror
The heated outer mirror filament is integrated in the outer mirror glass.
Operation
Vehicles with full-auto air conditioner system
1. When the rear window defroster switch on the climate control unit is turned on (1), an ON/OFF control request signal is sent to the front body control module (FBCM) through the instrument cluster as a CAN signal.(2)
2. When the front body control module (FBCM) receives the ON/OFF control request signal, it supplies the battery voltage to the rear window defroster relay.(3)
3. When the battery voltage is supplied to the rear window defroster relay, a switch inside the rear window defroster relay is turned on.(4)
4. When the switch inside the rear window defroster relay is turned on, the battery voltage is supplied to the rear window defroster/heated outer mirrors to operate them.(5)
When approx. 15 min.
has elapsed after the rear window defroster switch was turned on, the timer control of the front body control module (FBCM) turns off the rear window defroster relay automatically to turn off the rear window defroster/heated outer mirror.
When the rear window defroster switch is pressed while the rear window defroster/heated outer mirrors are operating, they stop operating.
Vehicles with manual air conditioner system
1. When the rear window defroster switch on the climate control unit is turned on (1), a signal is sent from the climate control unit to the front body control module (FBCM) and the battery voltage is supplied to the rear window defroster relay.(2)
2. When the battery voltage is supplied to the rear window defroster relay, a switch inside the rear window defroster relay is turned on.(3)
3. When the switch inside the rear window defroster relay is turned on, the battery voltage is supplied to the rear window defroster/heated outer mirrors to operate them.(4)
When approx. 15 min.
has elapsed after the rear window defroster switch was turned on, the timer control of the front body control module (FBCM) turns off the rear window defroster relay automatically to turn off the rear window defroster/heated outer mirror.
When the rear window defroster switch is pressed while the rear window defroster/heated outer mirrors are operating, they stop operating.
Fail-safe
Function not equipped
Hazardous Driving
WARNING
Be extremely careful if it is necessary to downshift on slippery surfaces: Downshifting
into lower gear while driving on slippery surfaces is dangerous. The sudden change
in tire speed could cause the tires to skid.
This could lead to loss of vehicle control and an accident.
When driv ...
Scheduled Maintenance (U.S.A., Canada, and Puerto Rico)
Follow Schedule 1 if the vehicle is operated mainly where none of the following
conditions apply.
• Repeated short-distance driving
• Driving in dusty conditions
• Driving with extended use of brakes
• Driving in areas where salt or other corrosive
materials are used
• Driving on ...
Sirius Satellite Radio Unit Removal/Installation
CAUTION:
The audio unit communicates with the SIRIUS satellite radio unit and records
the presence/non-presence of the SIRIUS satellite radio unit when the ignition
is switched to ACC or ON (engine off or on) after connecting the negative battery
cable.
If the commander ...