4WAS system (Main)
- 4WAS system enters in the fail-safe mode (4WAS system stopped) and 4WAS warning lamp turns ON if an error is detected in 4WAS system (4WAS main control unit) component part.
- 4WAS system enters in the protection function mode (4WAS system temporarily stopped) if 4WAS system continues the heavy load condition or the sensor self-check condition. (4WAS system reactivates automatically if the heavy load condition and the self-check condition are resolved.) 4WAS warning lamp stays OFF in the protection function mode.
DTC CHART
| Mode | Warning lamp | DTC | Detected area (Error area) | Error area and root cause | ||
|---|---|---|---|---|---|---|
| Fail-safe | Turn-ON | C1900 C1901 C1905 C1906 C1907 C1908 C1922 C1925 C1927 C1928 C1933 |
4WAS main control unit | 4WAS main control unit error | ||
| Turn-ON | C1902 C1903 C1904 C1910 C1913 |
4WAS rear motor | 4WAS rear motor error | |||
| Turn-ON | C1909 | 4WAS main control unit | 4WAS main control unit | |||
| Turn-ON | C1911 C1912 |
4WAS rear motor | 4WAS rear motor power supply error | |||
| Turn-ON | C1914 | Rear wheel steering sensor | Rear wheel steering sensor power supply error | |||
| Turn-ON | C1915 C1916 |
Rear wheel steering sensor | Rear wheel steering sensor output voltage error | |||
| Turn-OFF | C1917 | Rear wheel steering sensor | Rear wheel steering sensor (main and sub) output signal value error signal | |||
| Turn-ON | C1918 | Rear wheel steering sensor | Rear wheel steering sensor (main and sub) output signal error | |||
| Turn-ON | C1919 | ABS actuator and electric unit (control unit) | Vehicle speed signal error | |||
| Turn-ON | C1920 C1923 C1924 |
Steering angle sensor | Steering angle sensor input signal error | |||
| Turn-ON | C1921 | ECM | Engine speed signal error | |||
| Turn-ON | C1926 | Steering angle sensor | Steering angle sensor error | |||
| Turn-ON | C1930 | 4WAS front control unit | 4WAS front control unit fail-safe mode | |||
| Turn-ON | C1931 | 4WAS communication line(1)/4WAS front control unit/4WAS main control unit | 4WAS communication line(1)/4WAS front control unit/4WAS main control unit error | |||
| Turn-ON | C1932 | Steering angle sensor | Steering angle sensor input signal error | |||
| Turn-ON | U1000 | CAN communication line(1) | CAN communication error | |||
| Turn-ON | U1010 | CAN communication line(1)/4WAS main control unit/ECM/ABS actuator and electric unit (control unit) | CAN communication line/4WAS main control unit/ECM/ABS actuator and electric unit (control unit) error | |||
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