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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 779 (Lighting Systems) >> Diagnostic Information & Procedures >> DTC B1480 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

The battery rundown protection function allows the body control module (BCM) to disable the courtesy lamps and the underhood lamp 20 minutes after the ignition switch is turned OFF. The BCM monitors the output of the inadvertent power relay on Inadvertent Power Relay control circuit.

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