SMC: Stepper Motor Controllers
WARNING: This page does not describe the selected car, but rather 94 other vehicles, including the 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, 2010 BMW Z4, and 2010 BMW X6 M. However, it is still accessible from the selected car via links, so may be relevant.
The stepper motor controllers control the stepper motors in the headlights (for the automatic headlight - range adjustment and for the adaptive headlights). The stepper motor controllers are not capable of self - diagnosis. The stepper motor controllers are diagnosed and encoded via the control unit for adaptive headlights.