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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1558 (Fixed And MOVEABLE Windows System) >> Diagnostic Information and Procedures >> Rear Window Defogger Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Rear Defog Relay Switch B+ 2 2 - -
Rear Defog Relay Control B0283 06 B0283 06 2 -
Rear Window Defogger Grid Control 2 2 1 -
Rear Defog Relay Ground - B0283 06 2 -
Rear Window Defogger Grid Ground - 2 2 -
1. Rear Defogger Always On
2. Rear Defogger Inoperative