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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Mirrors >> Stationary Window System >> Diagnostic Information and Procedures >> Scan Tool Output Controls
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Scan Tool Output Controls

Body Control Module (BCM) Scan Tool Output Controls

Scan Tool Output Control Additional Menu Selection(s) Description
Rear Defogger - The BCM actuates the rear window defogger relay when you select ON. The rear window defogger grid should become warm.