FRM: Footwell module
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 footwell module (FRM) is the master control unit for the functions of the exterior and interior lighting. It decides which lighting functions have to be activated or deactivated.
The footwell module (FRM) evaluates the signals of the light sensor for example. The junction box electronics (JBE) output the sensor signals as a CAN message to the footwell module (FRM).
Vehicles with front electronic module (FEM): The footwell module's (FRM) function is integrated in the front electronic module (FEM).