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Home >> Volvo >> 2001 >> S80 Base >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Control Modules - Design And Function - 3 Of 3 >> Transmission Control Module (TCM) (4T65EV; 1999-2005) >> TCM diagnostic functions >> Description of parameters >> Parameters, value >> TCM speed sensor, calculated speed

TCM speed sensor, calculated speed

The control module 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, magnet resistive with a current activated interface????. The speed is directly proportional to the frequency.

Measurement range: 0 km/h - top speed

Peak = 14 mA

Trough = 7 mA

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