4WAS system (front)
- 4WAS system enters in the fail-safe mode (4WAS system is stopped), and 4WAS warning lamp turns ON if an error is detected in 4WAS system (4WAS front control unit and 4WAS main control unit) component part.
- 4WAS system enters in the protection function mode (4WAS system is temporarily stopped) if 4WAS system continues the heavy load condition and the overheat condition. 4WAS system reactivates automatically if the heavy load condition and the overheat condition are resolved. 4WAS warning lamp continues turning OFF in the protection function mode.
DTC CHART
| Mode | Warning lamp | DTC | Detected area (Error area) | Error area and root cause | ||
|---|---|---|---|---|---|---|
| Protection function | Turn-OFF | - | 4WAS front control unit | 4WAS front control unit overheat condition | ||
| Turn-OFF | - | 4WAS front actuator | 4WAS front actuator overheat condition | |||
| Turn-OFF | - | 4WAS front control unit | 4WAS front control unit heavy load condition | |||
| Fail-safe | Turn-ON | C1621 C1622 |
4WAS front actuator | 4WAS front control unit or 4WAS front motor error is detected. | ||
| Turn-ON | C1627 | 4WAS front actuator | 4WAS front actuator error | |||
| Turn-ON | C1628 | Front wheel steering angle sensor | Front wheel steering angle sensor error | |||
| Turn-ON | C1631 C1632 |
4WAS front control unit | 4WAS front control unit or 4WAS front control unit power supply error is detected. | |||
| Turn-OFF | C1633 | 4WAS front control unit | 4WAS front control unit error | |||
| Turn-ON | C1651 | 4WAS front control unit | 4WAS front control unit or the ignition power supply error is detected. | |||
| Turn-ON | C1652 | 4WAS front control unit | 4WAS front control unit or 4WAS front motor power supply error is detected. | |||
| Turn-ON | C1654 | 4WAS front control unit | The main relay power supply inside 4WAS front control unit error is detected. | |||
| Turn-ON | C1655 | 4WAS front control unit | 4WAS front control unit or 4WAS front motor power supply error is detected. | |||
| Turn-ON | C1661 | 4WAS front lock solenoid valve (lock structure) | 4WAS front control unit or 4WAS front lock solenoid valve error is detected. | |||
| Turn-ON | C1667 | 4WAS front actuator | The inside 4WAS front actuator error is detected. | |||
| Turn-ON | C1668 | 4WAS front actuator | The inside 4WAS front actuator error is detected. | |||
| Turn-ON | C1669 | 4WAS front actuator | The power steering oil pressure or the inside 4WAS front actuator error is detected. | |||
| Turn-ON | C1671 | 4WAS front actuator | 4WAS front actuator adjustment is not performed. | |||
| Turn-ON | C1672 | 4WAS main actuator | 4WAS front actuator adjustment is incomplete. | |||
| Turn-ON | C1684 C1685 U1000 U1002 U1010 |
4WAS communication line(1)/4WAS main control unit/4WAS front control unit | 4WAS communication line(1)/4WAS main control unit/4WAS front control unit error | |||
| Turn-ON | C1686 | 4WAS main control unit | 4WAS main control unit fail-safe mode | |||
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