CL TYPE S V6-3.2L SOHC (2001)
Wheel Speed Sensor: Description and Operation
ABS/TCS
Wheel Sensor
The wheel sensors are the magnetic contact less type. As the gear pulser teeth rotate past the wheel sensor's magnetic coil, AC current is generated.
The AC frequency changes in accordance with the wheel speed. The ABS/TCS control unit detects the wheel sensor signal frequency and thereby
detects the wheel speed.
Wheel Speed and Modulator Control (ABS)
When the wheel speed drops sharply below the vehicle speed, the outlet valve opens momentarily to reduce the caliper fluid pressure. The pump
motor starts at this time. As the wheel speed is restored, the inlet valve opens momentarily to increase the caliper fluid pressure.
Wheel Speed and Modulator control (TCS)
