As of ignition lock position 2 (terminal 15) and after successful control unit self-test, the ASC/DSC scope of functions can be deactivated with the passive button. The DSC multifunction lamp lights in the instrument cluster when the ASC/DSC functions are switched off. The ABS control function, however, is still operable.
The ASC/DSC function is reactivated by pressing the button again as long as the difference between the maximum rear wheel speed and minimum front wheel speed is less than 20 km/h.