| Main Action |
- Monitor the voltage and current
|
- Damaged or poor connector connection
- Faulty ESP (ESC)
|
| Case 1 (Valve Relay Fault, Solenoid valve coil open/short) |
Threshold value |
- When the valve relay is On and the solenoid valve is Off, if the following conditions maintained for more than 60 milliseconds.
- Solenoid valve voltage is less than (2.0±0.2) V.
- * If the above condition occurs simultaneously in more than 5 valves, it is treated as valve relay failure (C211201).
- When the valve relay is On and the solenoid valve is On, if the following conditions maintained for more than 60 milliseconds.
- Solenoid valve current is greater than (8.5±2.5) A.
- Internal temperature of valve driver is greater than (195 ± 20) °C.
|
| Diagnosis time |
|
| MIL |
- ESP (ESC)/EBD/ABS warning lamps are activated. EPB warning lamp is not activated.
|
| Case 2 (Valve active test) |
Threshold value |
- The ABS/ESC valve is driven sequentially to check for electrical malfunction, valve coil failure and short-circuit between valve lines. If it is judged that it is faulty, it shall be treated as a fault if it is operated at the maximum of 5 times and the fault is inputted more than 3 times.
- When solenoid valve is not actuating: valve voltage VSOL < (2.0±0.2) V
- When solenoid valve is actuating: valve current ISOL > (8.5±2.5) A
|
| Diagnosis time |
|
| MIL |
- ESP (ESC)/EBD/ABS warning lamps are activated. EPB warning lamp is not activated.
|
| Reset condition |
- Turn ignition switch OFF and ON.
|