Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Wheel Speed Sensor (WSS)
WSS are variable reluctance type. WSS is attached to steering knuckle on front wheels and in the rear differential, and consists of a sensor and a toothed sensor ring. See Figure . An AC voltage is generated when the toothed sensor ring passes by the sensor. The magnitude and frequency are proportional to the speed of the wheel, and both will increase with increasing speed. Air gap is not adjustable and sensor is not repairable. Front outside drive axle or rear hub and bearing assembly must be replaced if sensor ring is damaged.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.