Dodge Durango

 Service Manual

Electrically Heated Systems » Description and operation
Defogger switch

The rear window defogger switch is integral to the rear window switch pod, which includes the rear wiper and washer switches. The rear window switch pod is installed in the instrument panel lower bezel, which is located near the center of the lower instrument panel, below the heater and air conditioner controls.

The rear window switch pod also contains the rear window defogger logic and timer circuitry, an amber defogger indicator lamp, the rear window defogger relay, and two switch illumination lamps. The indicator and illumination lamps in the switch pod use incandescent bulbs, which can be serviced.

The momentary-type rear window defogger switch provides a hard wired ground signal to the rear window defogger logic and timer circuitry, each time it is depressed. The rear window defogger timer and logic circuitry responds by energizing or de-energizing the rear window defogger relay and the amber defogger indicator lamp, which lights to indicate when the defogger system is turned On. Energizing the rear window defogger relay provides electrical current to the rear window defogger grid.

The rear window switch pod cannot be repaired. If any function of the switch pod except lighting is faulty or damaged, the entire switch pod must be replaced.

Rear glass heating grid

Outside mirror heating grid

Defogger switch