Speedometer (MIU 1)
The car is equipped with an electronic speedometer. The ABS control module
continuously sends vehicle speed information to terminal 7. This information is represented by
a square wave which varies between 8 V and 0 V 29 times per wheel revolution. When the
wheels are stationary, the voltage may be
either
8 V or 0 V.
This information controls the speedometer, odometer and trip odometer.