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Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2585 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) turns on the PARK LAMP relay when the ambient light sensor senses a dark condition or the park lamps are requested ON. Battery positive voltage is supplied to the PARK LAMP relay at all times. The BCM grounds the PARK LAMP relay control circuit in order to activate the relay.

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