Rear Window Defogger Switch - Dodge Dakota Sport 2001 Service Manual

8G - 4 HEATED GLASS
REAR WINDOW DEFOGGER GRID (Continued)
(10) Check the operation of the rear window defog-
ger glass heating grid.
REAR WINDOW DEFOGGER
SWITCH
DESCRIPTION
The rear window defogger switch is integral to the
heater—A/C control assembly, which includes the
rear wiper and washer switches.
The rear window switch also contains the rear win-
dow defogger logic and timer circuitry, an amber
defogger indicator lamp, the rear window defogger
relay, and two switch illumination lamps. The indica-
tor 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 win-
dow defogger logic and timer circuitry, each time it is
depressed.
OPERATION
The rear window defogger timer and logic circuitry
responds by energizing or de-energizing the rear win-
dow defogger relay and the amber defogger indicator
lamp, which lights to indicate when the defogger sys-
tem is turned On. Energizing the rear window defog-
ger relay provides electrical current to the rear
window defogger grid.
The rear window switch cannot be repaired. If any
function of the switch except lighting is faulty or
damaged, the entire heater—A/C control assembly
must be replaced.
AN