Redundant signal
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.
Only for vehicles with junction box electronics (JBE).
The signals from the steering column stalk turn indicator/high-beam switch for direction indicator lights as well as headlight flasher are transferred across the FlexRay. To enhance system availability, a direct wire connects the steering column switch cluster to the footwell module (FRM). The signals - e.g. for the headlight flasher or turn indicators - are transferred redundantly across this cable.