Wheel Speed Sensor: Testing and Inspection

Inspection
1. Inspect the front and rear pursers for chipped or damaged teeth.








2. Measure the air gap between the wheel sensor and the purser all the way around while rotating the purser. Remove the rear brake disc to measure the gap on the rear wheel sensor. If the gap exceeds 1.0 mm (0.04 inch), check for a bent suspension arm.
Standard:
Front: 0.4 - 1.0 mm (0.02 - 0.04 inch)
Rear: 0.2 - 1.0 mm (0.01 - 0.04 inch)