Neon L4-2.0L DOHC (1996)
Wheel Speed Sensor: Description and Operation
OPERATION
One wheel speed sensor (WSS) is located at each wheel and sends an AC signal to the Controller, Antilock Brake (CAB). The voltage is generated
by magnetic induction when a tooth sensor ring passes by a stationary magnetic sensor. The CAB then converts the AC signal into digital signals
for each wheel. The four wheel speed sensors are serviced individually.
CIRCUIT OPERATION
There are four wheel speed sensors, one at each wheel. The sensors use a tone wheel to determine wheel speed. Input to the Controller Anti Lock
Brake (CAB) is done on the following circuits. All of these circuits are a twisted pair.
B8 and B9 for the left front wheel (cavity 8 and cavity 9).
B6 and B7 for the right front wheel (cavity 6 and cavity 7).
B3 and B4 for the left rear wheel (cavity 3 and cavity 4).
B1 and B2 for the right rear wheel (cavity 1 and cavity 2).
