| Main Action |
- Monitor the wheel speed sensor signal
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- Improper installation of wheel speed sensor
- Large Air-Gap
- Installation of different type Wheel speed sensor
- Faulty Wheel speed sensor (RL)
- Tone wheel with wrong number of teeth
- Abnormal tire size
- Faulty ESP (ESC)
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| Case 1 |
Threshold value |
- When wheel speed sensing is under 1.6 km/h (1.0 MPH) during the vehicle speed is above 12 km/h (7.4 MPH).
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| Diagnosis time |
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| Case 2 |
Threshold value |
- A failure is detected when there is a difference of wheel speeds due to air gap or tone wheel failure (missing teeth).
- FL/RL, FR/RR: 6 km/h~12 km/h (3.7~7.4 MPH)
FL/FR: 10 km/h~16 km/h (6.2~9.9 MPH)
Fault detection time: maximum 20 seconds
- FL/RL, FR/RR: >12 km/h (7.4 MPH)
FL/FR: > 16 km/h (9.9 MPH)
Fault detection time: maximum 10 seconds
Fault detection time is maximum 80 seconds when spin occurs on front wheel.
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| Diagnosis time |
- 20 seconds/10 seconds/80 seconds
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| Case 3 |
Threshold value |
- A failure is detected when sensor failure of smart sensor or installation of wrong type sensor.
- When Invalid pulse that does not correspond to the specifications of the smart wheel sensor is input for more than 250 milliseconds.
- When the standstill pulse is not received for more than 2.5 seconds from the wheel sensor mounted on the vehicle in the vehicle stop state.
- * Applies only to wheels that use PWM type wheel sensor.
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| Diagnosis time |
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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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