Accord V6-3.0L (2003)
Wheel Speed Sensor: Description and Operation
Wheel Sensor
The wheel sensors are the magnetic contactless type. The wheel sensors detect changing of magnetic polarity on the magnetic encoder. The ABS/TCS
control unit calculates the wheel speed based on signals received from the wheel sensor.
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.
When the front wheel speed rises sharply above the vehicle speed, the TCS NC valve opens, the TCS NO valve closes, and the pump motor starts to
intensify the front caliper fluid pressure. When the wheel speed drops, the front inlet valve closes momentarily to retain the front caliper fluid pressure.
When the wheel speed drops further, the front outlet valve opens momentarily to reduce the front caliper fluid pressure.
