Low Beam Feedback
WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
This body control module input displays the state of the low beam headlamps. When the BCM senses that the normal low beam headlamps are illuminated, the operating voltage of the low beam headlamps is displayed. When the BCM senses that the DRLs are active, the reduced operating voltage of the DRLs is displayed.