ABS Sensor
Your ABS sensor has failed and needs replacing — this sensor watches each wheel's speed so the anti-lock system can prevent skidding during hard braking. When it fails you'll usually see the ABS warning light, and the anti-lock feature may stop working. A new sensor restores your ABS so your brakes stay safe and stable in emergencies.
Find a TechnicianCommon causes
- Dirt, brake dust, or metal debris coating the sensor and blocking the signal
- A damaged sensor wire or connector from corrosion or road exposure
- Normal wear and electrical failure of the sensor over time
- A damaged tone ring (reluctor ring) that the sensor reads
- Impact or vibration that knocks the sensor out of alignment
Frequently asked questions
What does it mean when the ABS light comes on?
The ABS light usually means a wheel speed sensor or the ABS system has a fault. Your regular brakes still work, but the anti-lock feature may be disabled until it's repaired.
Can I still drive with a bad ABS sensor?
You can drive, but your anti-lock braking may not engage in a hard stop, increasing the risk of skidding. It's best to have it diagnosed and fixed soon for full safety.
How is a faulty ABS sensor diagnosed?
A mechanic uses a scan tool to read the fault codes and identify which wheel sensor is failing. They'll then inspect the sensor, wiring, and tone ring before replacing the faulty part.
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