Lift vehicle with suitable lift and refer to shop manual to remove wheel.

Check for contamination, deterioration and installation condition of wheel speed sensor.

Check for condition of Tone Wheel.

Measure air-gap between wheel speed sensor and tone wheel.

Is measured value and condition within specification?

	▶ Go to "Wiring Inspection" procedure.
	▶ Check for air-gap, corrosion, contamination, deterioration and/or damage of component and repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.