Component Description: BCM
WARNING: This page is about a different car, the 2022 Lincoln Nautilus. However, it is still accessible from the selected car via links, so may be relevant.
The BCM controls the run/start relays and sets the vehicle ignition mode based on inputs from the ignition switch, or push button ignition switch. It communicates the ignition mode to other modules over the CAN. If a fault is detected with the ignition switch system, Diagnostic Trouble Codes (DTCs) are set in the BCM.
When the BCM is replaced, the parameter reset and PMI procedures must be carried out and at least 2 keys programmed to it.