October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Wheel Speed Sensor

The wheel speed sensor detects wheel rotation speed. Wheel speed sensor consists of a permanent magnet, coil and trigger wheel (pulser). As trigger wheel rotates, the magnetic flux around the coil in each wheel speed sensor alternates, generating a voltage frequency proportional to wheel rotation speed. These pulses are sent to ABS control unit to determine wheel speed.