System Operation: BCM
WARNING: This page is about a different car, the 2022 Ford Bronco Sport. However, it is still accessible from the selected car via links, so may be relevant.
The BCM controls various systems by monitoring inputs from switches, sensors and network messages from other modules and components on the HS-CAN1, LIN and the GWM. Based on the inputs, the BCM activates outputs. For example, the BCM monitors the HCM inputs and provides voltage to the exterior lamps.