| Main action |
- Monitor the wheel speed sensor signal
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- Improper installation of wheel speed sensor (poor air gap)
- Failure to engage with the wheel speed sensor knuckle mounting bolt
- Deformation/contamination of tone wheel and poor performance
- Excessive mechanical force intrusion
- Abnormal Rotor and wheel bearing
- Faulty Wheel speed sensor
- Open or short circuit of Wheel speed sensor circuit
- Faulty ESP (ESC)
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| Threshold value |
Case 1 |
- When wheel speed is less than 2.75 km/h (1.7 MPH) in more than one wheel while the vehicle speed is greater than 40 km/h (24.9 MPH) for more than 300 milliseconds
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| Case 2 |
- When sudden change in wheel speed is monitored on more than one wheel and abnormal signal* is detected
- When a brake pedal is stepped on, and wheel speed is rapidly changed for more than 20 seconds
- When a brake pedal is not stepped on, and wheel speed is rapidly changed for more than 5 seconds
- In case that more than three wheel speed change are rapidly for more than 1 second
* If a wheel sensor failure is detected during non-control, control is immediately stopped
* Abnormal signal: 100g (Approx. 99.2 m/s2)
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| MIL |
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| Reset condition |
- After ignition switch turned OFF and back ON, when all wheel speed is normal after driving more than 12 km/h (7.45 MPH).
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