| Case 1 |
Main action |
- Monitor the valve relay voltage (fuse open)
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- Open or short in power supply circuit (IGN+)
- Defected ESP (ESC)
- Blown fuse
- Faulty Battery
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| Threshold value |
- A failure is detected if valve relay voltage does not go up to 80% of supply voltage within 80 milliseconds after valve relay 'ON'.
- If the valve relay drive element detects the following fault after the valve relay is "ON".
- Voltage difference between Drain and Source of valve relay FET is greater than (1.0±0.4) V.
- When leakage current of 3.0 ± 1 mA is detected at the initial operation of valve relay
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| Diagnosis time |
|
| MIL |
- ESP (ESC)/EBD/ABS warning lamps are activated. EPB warning lamp is not activated.
|
| Case 2 |
Main action |
- Monitor the valve relay stuck
|
| Threshold value |
- A failure is detected when valve relay voltage does not drop below 80% of the supply voltage within 80 milliseconds after valve relay 'ON' to 'OFF'.
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| Diagnosis time |
|
| MIL |
- ESP (ESC)/ABS warning lamps are activated. EBD/EPB warning lamps are not activated.
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| Reset condition |
- Turn ignition switch OFF and ON.
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