Module, Final Drive Control (FDCM): Operation: Notes
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
During normal operation of the FDCM control module uses bussed inputs for vehicle speed and transfer case position to manage stabilizer bar disconnect actuator and front and rear axle lockers. These features will provide feedback to the driver and communicates over the CAN C network.