Mazda CX-5 Service & Repair Manual: Rear Window Defroster/Outer Mirror Heater
Outline
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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
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The rear window defroster filament is inside the rear window glass.
Heated outer mirror
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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)
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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.
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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)
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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.
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When the rear window defroster switch is pressed while the rear window defroster/heated outer mirrors are operating, they stop operating.
Fail-safe
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Function not equipped
Rear Power Window Regulator Removal/Installation
1. Fully lower the rear door glass.
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Rear door trim.
b. Rear door quarter glass.
c. Rear door speaker.
d. Rear p ...
Rear Window Glass Installation
WARNING:
Using a utility knife with bare hands can cause injury. Always wear gloves
when using a utility knife.
CAUTION:
Proper installation of the glass may be difficult if s ...
Other materials:
Exhaust System
Purpose, Outline
A 4-2-1 exhaust system has been adopted which reduces residual gas in the
cylinders using the scavenging effect and contributes to a high compression
ratio.
The loop structure of the exhaust pipes for the 4-2-1 system takes up less
space.
Structural Vie ...
Climate Control Unit [Manual Air Conditioner]
Purpose
The climate control unit performs air conditioning according to the operation
by the users and the driving conditions of the vehicle.
Function
The climate control unit determines optimum air-conditioning based on the
input signals from each sensor and the control mo ...
Liftgate Light
Purpose
The liftgate lights are used to signal the following conditions to vehicles/people
at the rear.
Back-up lights: Signals that the vehicle is backing up.
Taillights: Signals the presence of the vehicle during nighttime.
Function
The back-up ...