Demand Lamps
WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The BCM monitors the ignition state and inputs from the RKE system to determine when to energize the battery saver relay. When the battery saver relay is energized, voltage is provided to the demand lamps. Refer to BATTERY SAVER .
When the BCM is not in battery saver mode, the battery saver relay is energized to provide voltage to the demand lamps.