Operation CHARM: Car repair manuals for everyone.

Wheel Speed Sensor: Testing and Inspection

Wheel Sensor Inspection

1. Check the magnetic encoder (A) after cleaning. If necessary, replace the wheel bearing.
^ Front wheel bearing replacement.
^ Rear wheel bearing replacement.





2. Measure the air gap between the wheel sensor (B) and the magnetic encoder all the way around while rotating the encoder.

Standard:
Front: 0.5-1.5 mm (0.02-0.06 in.)
Rear: 0.5-1.5 mm (0.02-0.06 in.)