Town & Country SWB FWD V6-3.3L VIN G Flex Fuel (2000)
Rear Window Defogger Relay: Description and Operation
HEATED GLASS DESCRIPTION
The electrically heated Rear Window Defogger, Heated Power Side View Mirrors, and Heated Windshield Wiper De-icer is available on all models.
OPERATION
The Rear Window Defogger system consists of two vertical bus bars linked by a series of grid lines on the inside surface of the rear window. The
electrical circuit consists of the rear defogger switch in the HVAC and a relay with timer switch to turn OFF the system after ten minutes. The main
feed circuit is protected by fuse one (40 amp) in the Power Distribution Center (PDC). See: Power and Ground Distribution The rear defogger switch
and relay also activates the heated power side view mirrors and heated windshield wiper de-icer. The HVAC rear defogger switch is protected by fuse
ten (10 amp) in the Junction Block. The heated mirror circuit is protected by fuse 7 (10 amp) in the junction block. The heated windshield wiper
de-icer circuit is protected by fuse 9 (10 amp) in the Junction Block. See: Maintenance/Fuses and Circuit Breakers/Fuse Block
The Heated Windshield Wiper De-icer is also activated when the DEFROST mode is selected on the HVAC. In the DEFROST mode the rear
defogger relay/timer is bypassed, the heated windshield wiper de-icer will stay ON until the another mode is selected. For circuit information and
component location refer to Group 8W, Wiring Diagrams. See: Diagrams/Electrical Diagrams
CAUTION: Since grid lines can be damaged or scraped off with sharp instruments, care should be taken in cleaning the glass or removing foreign
materials, decals or stickers. Normal glass cleaning solvents or hot water used with rags or toweling is recommended.
