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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 558 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2648: Ambient Light Sensor Circuit High >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) uses the ambient light sensor signal to control the daytime running lamps system. The ambient light sensor is connected directly to the BCM.

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