Impreza 2.5 RS Coupe F4-2.5L SOHC (2000)
Transmission Speed Sensor: Description and Operation
The speed sensor 2 is a Hall IC pick-up type revolution sensor. (MT model) This sensor is installed on the transmission case and detects the transmission
output gear rotation speed. 4 pulses are sent to speedometer per rotation of speed sensor driven shaft. Vehicle speed sensor 2 is installed on the
transmission, and sends signal to the cruise control module (MT model).
1.CONSTRUCTION
The speed sensor 2 consists of a Hall IC, magnet ring, driven shaft, spring, etc.
2.OPERATION
As the driven key rotates, the magnet turns to change the magnetic field of the Hall IC.
The Hall IC generates a signal corresponding to a change in the magnetic field.
