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Home >> Chevrolet >> 2009 >> Traverse LTZ, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Lighting System) >> Diagnostic Information and Procedures >> DTC B2580 >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2010 Saturn Outlook, 2010 GMC Acadia, 2010 Chevrolet Traverse, and 2010 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

When the body control module (BCM) receives a ground signal from the multifunction high beam or flash to pass (FTP) switch commanding to illuminate the high beam headlamps, the BCM will energize the high beam relay by grounding the high beam relay control circuit.