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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 871 (Lighting Systems) >> Diagnostic Information & Procedures >> DTC B2587: Short To Ground Or An Open In Control Circuit Of Park Lamp Relay Coil >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) controls the park lamp relay by grounding the control circuit of the park lamp relay when the headlamp switch is turned to the PARK or the HEAD position. This energizes the park lamp relay, illuminating the park lamps.

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