The speed indication function is equipped with various types of speedometer depending on the vehicle model.
The instrument cluster receives the position signal tw from the antilock brake system (ABS)/automatic stability control (ASC)/dynamic stability control (DSC) control unit. In this way, the instrument cluster controls the driving speed, total distance recorder and trip recorder displays.
The instrument cluster determines the speed and distance from the distance signal (tw ) and the number of distance pulses stored in the instrument cluster in the form of coding data (K-number ). Furthermore, the instrument cluster makes available to connected control units a speed signal (speedometer A ) which provides speed information on the body bus (K-bus ).