Impreza Outback Sport AWD F4-2.5L SOHC (2002)
Vehicle Speed Sensor: Description and Operation
4-spd Electronically Controlled Fully Automatic Transmission
Vehicle Speed Sensor Mounting
VEHICLE SPEED SENSOR
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The vehicle speed sensor is mounted on the transmission.
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The vehicle speed sensor generates a 16-pulse signal for every rotation of the front differential and send it to the transmission control module
(TCM). The signal sent to the TCM is converted there into a 4-pulse signal, and then sent to the ECM and the combination meter.
Front Vehicle Speed Sensor
G: FRONT VEHICLE SPEED SENSOR
This vehicle speed sensor (output shaft speed sensor) is externally mounted on the transmission case. It detects the front wheel speed and sends sine
wave signals (16 pulses per rotation) to the TCM.
The TCM converts the signals into pulse signals and outputs them to both the engine control module (ECM) and the combination meter.
