Reversing lights
WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.
The reversing light is switched on after "terminal 15 ON" when reverse gear is engaged. The footwell module (FRM) receives the signal for this process through K CAN2. The electronic transmission control (EGS) makes this signal available on the K-CAN2 in vehicles fitted with an automatic transmission.
The signal is provided by the reversing light switch in vehicles with a manual gearbox. The reversing light switch is connected to the footwell module (FRM) by a line. When reverse gear is engaged, the footwell module (FRM) switches the reversing lights on.