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Home >> Cadillac >> 2002 >> Eldorado ECS >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Stationary Window System >> Diagnostic Information and Procedures >> Scan Tool Data Deifications >> HVAC Control Module
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HVAC Control Module

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

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