RAM 2500 Truck 4WD V10-8.0L VIN W (1997)
Wheel Speed Sensor: Description and Operation
Rear Wheel Antilock Brakes
Rear Wheel Speed Sensor Location
Exciter Ring Location
Operation Of The Wheel Speed Sensor
GENERAL INFORMATION
The rear Wheel Speed Sensor (WSS) is mounted in the rear differential housing. The WSS consists of a magnet surrounded by windings from a
single strand of wire. The sensor sends a small AC signal to the Controller Antilock Brake (CAB). This signal is generated by magnetic induction.
The magnetic induction is created when a toothed sensor ring (exciter ring or tone wheel) passes the stationary magnetic WSS. The exciter ring is
press fitted onto the differential carrier next to the final drive ring gear. When the ring gear is rotated, the exciter ring passes the tip of the WSS.
