Vehicle Speed Transmission Control Module (TCM)

The value displays the vehicle speed. The transmission control module (TCM) receives a signal from the transmission speed sensor which is affected by a toothed pulse wheel and calculates the vehicle speed based on the signal. The speed sensor is an "active" sensor. The signal oscillates between a peak and a trough value. The transmission control module (TCM) calculates the speed which is directly proportional to the frequency.

Measurement range: 0 - 655 km/h.