System Description: Sensor

The front sensor units consist of a gear-shaped sensor rotor and a sensor element. the element contains a magnet and IC. The front wheel sensors are installed on the front of the wheel knuckles. As the wheel rotates, the sensor generates a square-wave signal. The frequency increase as the wheel speed increases.

Fig 1: Front Wheel Speed Sensor System Description

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Rear Wheel Speed Sensor System Description

Courtesy of NISSAN MOTOR CO., U.S.A.