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Home >> Volvo >> 2009 >> S60 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (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
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TCM speed sensor, calculated speed

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

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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