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Circuit/System Description

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Battery positive voltage is supplied to the PRK LAMP relay at all times. The body control module (BCM) grounds the park lamp relay control circuit in order to activate the relay. With the park lamp relay activated, voltage is supplied to the park lamp control circuit illuminating the park lamps, license lamps, and marker lamps.

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