Circuit/System Description
WARNING: This page is about a different car, the 2013 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) supplies battery voltage to front door flood lamps via the flood lamp control circuit. When a door is opened the BCM applies battery voltage to the flood lamp control circuit illuminating the driver and passenger door pocket flood lamps. The flood lamps will remain illuminated until all doors are closed and the ignition is OFF.