Rear Window Defogger System Components
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The rear window defogger system consist of the following components:
- HVAC control module
- RR DEFOG relay
- Rear window that has a number of grid lines
- Two bus bars that are attached to the inside surface of the rear window
The supply voltage terminal and ground terminal are soldier to the bus bars.