● Fix soon
Usually drivable for a short time, but check it soon. It can get worse.
Usually drivable for a short time, but check it soon. It can get worse.
The ABS computer sees a missing or wrong signal from the left front wheel. The driver may see the ABS and traction lights on.
Guided check
- Does live data show one wheel speed wrong or at zero on a road test?If yes: Inspect that sensor and its wiring first. Road test carefully, as ABS may not work.
- Is the wiring or connector damaged near the wheel?If yes: Repair the wiring and clear the code.
- Is the tone ring damaged or the wheel bearing loose?If yes: Replace the damaged part, then check the signal again.
These checks are general and are still being reviewed by working mechanics.
Causes vary by car. Test before you order a part.
Likely causes, most common first
- Dirty or faulty wheel speed sensor
- Damaged wiring near the wheel
- Damaged tone ring or wheel bearing
- Corroded connector
Parts usually involved
- Wheel speed sensor Find at suppliers
- Tone ring Find at suppliers
- Wheel bearing Find at suppliers
- Sensor connector Find at suppliers
Test before you replace
Compare all four wheel speeds live on a road test, then inspect the sensor, wiring and tone ring on that wheel.
Chassis codes can mean different things on different makes. Confirm this one in the maker's data for your car.
General guidance for generic OBD2 codes. Always follow the maker's procedure for the car in front of you.