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Home >> GMC >> 2003 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> Body & Frame >> Windows >> Stationary Window System >> Diagnostic Information and Procedures >> Scan Tool Data Definitions >> HVAC Control Module

HVAC Control Module

Rear Defog Switch:  The scan tool displays On or Off. When the rear defogger switch is pressed, the scan tool will display On. When the switch is released, the scan tool displays Off.

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