Previa Van RWD L4-148.8 2438cc 2.4L DOHC SC (2TZ-FZE) (1996)
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Vehicle Speed Sensor: Description and Operation
Vehicle Speed Sensor Circuit Description
Vehicle Speed Sensor NO.1
Signal Flow
Component Location
The vehicle speed sensor outputs a 4-pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven
gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then
transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of these pulse signals.
Vehicle Speed Sensor NO.2