Switch-on conditions

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) receives a large number of input signals that switch on the interior lighting. The input signals are read in directly by the footwell module or received via the K CAN.

The following signals switch the interior lighting ON:

Interior lighting button pressed
Door opened
Unlocking using drivers door cylinder lock
Unlocking using remote control
Terminal 30B OFF if terminal 58g was ON for a maximum of 2 minutes beforehand
Crash message
Lock button on remote control pressed when central locking system has been in central double-locking for at least 10 seconds

The interior lighting is switched off under the following preconditions:

Central locking system set to thiefproof mode, all doors and the tailgate closed
Interior lighting button pressed for longer than 3 seconds
Terminal 58 ON and terminal 30B OFF
Terminal 30B ON with closed doors
The vehicle is unlocked with the remote control and no door is opened with the space of 20 seconds
Terminal 30B OFF and the door opened for longer than 1 minute
Via diagnosis "Power Down"
After 8 minutes terminal 30B OFF

When terminal R is switched OFF, the footwell module (FRM) will switch the interior lighting off after 8 minutes. To do so, the footwell module sends the message for consumer shutdown via the K CAN. The roof control panel (FZD) receives this message and switches off the interior lighting in the roof area. Interior lights that are switched on directly by the footwell module are also switched off.

The footwell module provides terminal 58 g via the K CAN or via conventional wiring. Terminal 58 g is pulse-width modulated and has 2 brightness stages.

Brightness stage for locating lights. The brightness for the locating lights can be set individually with the rocker switch on the steering-column stalk.
Brightness stage for function indicator lamps. The brightness stage for the function indicator lamps is not dimmed and is switched on with full brightness.

As soon as the hazard warning switch has been pressed, the lighting of the hazard warning switch is switched to full brightness by the footwell module. If terminal 58 g is activated, the hazard-warning lights switch will no longer be illuminated with full intensity. The brightness depends on the setting for the locator lighting.

We can assume no liability for printing errors or inaccuracies in this information and reserve the right to introduce technical modifications at any time.