| Main Action |
|
- Poor contact in power supply circuit
- Defected ESP (ESC) fuse
- Defected ESP (ESC)
- Excessive parking brake shoe gap
- Faulty Battery
- Blown fuse
|
| Case 1 |
Threshold value |
- When the pump motor supply voltage is below 7.0V for more than 500 milliseconds.
- When the pump motor supply voltage is over 3V for more than 2.5 seconds.
- After the motor FET operation, if the motor operation voltage is below 3V for more than 160 milliseconds.
- After the motor FET operation, if the motor operation voltage is below (IG voltage - 4V) for more than 500 milliseconds.
|
| Diagnosis time |
- 160 ms/500 ms/2.5 seconds
|
| MIL |
- ESP (ESC)/ABS warning lamps are activated. EBD/EPB warning lamps are not activated.
|
| Reset condition |
- When the normal state is confirmed after ignition switch turned OFF and back ON.
|
| Case 2 |
Threshold value |
- Turn on the motor FET for a short time (0.1 ~ 1 ms) so that the motor does not rotate and check if the motor drive voltage is more than 0.4V
- Up to 10 times restart when voltage is not applied
- Fault detection after 10 times restarts
- After the ignition switch is turned on, it is performed once at initialization.
|
| Diagnosis time |
|
| MIL |
- ESP (ESC)/ABS warning lamps are activated. EBD/EPB warning lamps are not activated.
|
| Reset condition |
- When the normal operation of motor is confirmed after ignition switch turned OFF and back ON.
|