Town & Country Van 2WD V6-230 3.8L VIN L SMFI (1997)
Heated Glass Element Switch: Description and Operation
CIRCUIT OPERATION
HVAC Control Panel/Rear Window Defogger Switch
The rear window defogger switch is integrated into the HVAC. An LED indicator will illuminate when the switch is activated. The switch
energizes the timing circuit and activates the rear window defogger relay. The relay controls the current to flow to the grids of the rear window
defogger, heated power side view mirrors and the heated windshield wiper de-icer. The defogger relay will be on for approximately 10 minutes or
until the control switch or ignition is turned off.
