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Home >> Volvo >> 2009 >> C30 R-Design, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Transmission Control Module (TCM) - Vehicle Communication Information) >> Vehicle Communication Information, Transmission Control Module (TCM) >> Description Of Parameters >> Parameters, Value >> Vehicle Speed Transmission Control Module (TCM)

Vehicle Speed Transmission Control Module (TCM)

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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.

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