REAR WINDOW DEFOGGER/HEATED OUTER MIRROR


id091200015500


Outline

•  The rear window defogger removes fogging from the rear window glass surface.
•  The heated outer mirrors remove fogging from the surface of outer mirror glass.

Functions

•  Fogging on the rear window glass/outer mirror is removed by heating the rear window glass using the rear window defogger/heated outer mirror filaments to vaporize moisture on the window.

Personalization feature

•  The operation time setting (initial setting 15 min) for the rear window defogger/heated outer mirror can be changed. For details on the personalization features, refer to the [GLASS/WINDOW/MIRROR PERSONALIZATION]. (See GLASS/WINDOWS/MIRRORS PERSONALIZATION.)


Structure/Construction


Structural view

ac8wzn00001467


System wiring diagram

ac8wzn00001468

•  The rear window defogger filaments are located on the cabin side of the rear window glass.
ac5wzn00004262
•  The heated outer mirror filaments are built into the outer mirror glass.
ac8wzn00000411

Operation

Rear window defogger operation time is set to "15 minutes"
1.  When the rear window defogger switch is turned on with the ignition switched ON (engine off or on), the climate control unit sends a rear window defogger operation request signal (1) to the instrument cluster via CAN communication.
2.  The instrument cluster sends the rear window defogger operation signal (2) to the FBCM.
3.  When the FBCM receives the rear window defogger operation signal, it turns the rear window defogger relay on (3).
4.  When the rear window defogger relay turns on, the windshield wiper de-icer relay turns on (4).
5.  The rear window defogger timer inside the FBCM operates at the same time the rear window defogger relay and windshield wiper de-icer relay turn on. In addition, voltage is supplied (5) to the rear window defogger/heated outer mirror filaments and the filaments are heated to warm the rear window glass/outer mirror glass.
Note
•  When approx. 15 min have elapsed after the rear window defogger timer started operation, the FBCM turns the rear window defogger relay off and stops the rear window defogger/heated outer mirror operation.
ac8wzn00001469
Rear window defogger operation time is set to "Continuous"
1.  When the rear window defogger switch is turned on with the ignition switched ON (engine off or on), the climate control unit sends a rear window defogger operation request signal (1) to the instrument cluster via CAN communication.
2.  The instrument cluster sends the rear window defogger operation signal (2) to the FBCM.
3.  When the FBCM receives the rear window defogger operation signal, it turns the rear window defogger relay on (3).
4.  When the rear window defogger relay turns on, the windshield wiper de-icer relay turns on (4).
5.  The rear window defogger timer inside the FBCM operates at the same time the rear window defogger relay and windshield wiper de-icer relay turn on. In addition, voltage is supplied (5) to the rear window defogger/heated outer mirror filaments and the filaments are heated to warm the rear window glass/outer mirror glass.
6.  When the front body control module (FBCM) receives an ambient temperature signal of 0 °C {32 °F} or less from the PCM after approx. 15 min have elapsed since it received the rear window defogger operation request signal, it continues turning the rear window defogger relay on (6).
7.  When the front body control module (FBCM) receives an ambient temperature signal of 1 °C {34 °F} or more after approx. 15 min have elapsed since it received the rear window defogger operation request signal, it turns the rear window defogger relay off to stop the rear window defogger/heated outer mirror operation (7).
ac8wzn00001470

Fail-safe

•  Not applicable