Impreza L Sport Wagon F4-2.2L SOHC (1999)
Wheel Speed Sensor: Description and Operation
ABS Sensor Description
The ABS sensor detects wheel speed and consists of a permanent magnet, coil, tone wheel, etc. The magnetic flux produced by the permanent magnet
varies with the tone wheel (which rotates together with the wheel) and the sensor emits an alternating voltage corresponding with the wheel speed by
electromagnetic induction.
