Front Lighting Control Module (FLM)
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 FLM monitors the headlamp switch (integrated into the FLM . When the FLM detects the headlamp switch is in the HEADLAMP ON position (or a fault with the headlamp switch), it sends a message over the communication network to the BCM , indicating the headlamp switch position or a fault with the headlamp switch input.