Voyager L4-2.4L VIN B (2001)
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 Deicer 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.
