Central locking system (Ver.2): Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The entire access control function is integrated in the front electronic module (FEM). The front electronic module is the master control unit for the central locking system. All activities of the central locking system are monitored by the front electronic module.
The front electronic module controls the central locking system for the doors and the fuel filler flap. The rear electronic module (REM) controls the central locking system for the tailgate.