Operation CHARM: Car repair manuals for everyone.
Home >> Kia >> 2004 >> Rio L4-1.6L >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Wheel Speed Sensor >> Description and Operation
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Wheel Speed Sensor: Description and Operation



SPEED SENSOR
STRUCTURE








The speed sensor detects wheel rotation and consists of a permanent magnet and pickup coil. Sensors for the front wheels are attached to drive shaft and rear hub spindle for the rear wheel.

OPERATION





Since teeth of sensor rotor change magnetic field of sensor, it generates alternative voltage. This voltage is proportional to rotating speed and its period can be changed. It can sense speed of wheel by detecting period.

pro multis · About Operation CHARM