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Home >> Chevrolet >> 2002 >> TrailBlazer 4WD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Mirrors >> Stationary Window System >> Diagnostic Information and Procedures >> Scan Tool Data Definitions >> HVAC Control Module
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HVAC Control Module

Rear Defrost Switch

The scan tool displays On/Off. When the rear window defogger switch is depressed, the scan tool displays will momentarily display On.

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