Theory Of Operation
WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The Body Control Module (BCM) is the Local Interconnect Network (LIN) master for the Voltage Stability Module, Steering Column Control Module (SCCM) and Wireless Charging Pad Module. The BCM monitors the LIN circuit for any concerns.