AWD system
- If any malfunction occurs in AWD electrical system, and control unit detects the malfunction, AWD warning lamp on combination meter turns ON to indicate system malfunction.
- When AWD warning lamp is ON, vehicle changes to rear-wheel drive or shifts to 4-wheel drive (front-wheels still have some driving torque).
- AWD system activates its protection function (shuts down AWD system temporarily) if AWD system detects high load continuously or the front wheel tire size differs from the rear tire size. (AWD system is automatically restored if AWD system no longer detects any overload or the tire size difference is eliminated.)
FAIL-SAFE REFERENCE TABLE
| Mode |
Warning lamp |
DTC |
Detected area (Error area) |
Error area and root cause |
| Protection function |
Blinking |
- |
AWD control unit |
Transfer assembly in protection mode. It is not malfunction. (Internal temperature rise of electronic controlled coupling) |
| Blinking |
- |
Outer diameters of front and rear wheel tires |
Malfunction in each tire or different tire diameter |
| Fail-safe |
ON |
C1201 |
AWD control unit |
Internal malfunction of AWD control unit |
| C1203 |
ABS actuator and electric unit (control unit) |
ABS malfunction
- Vehicle speed signal error
|
| C1204 |
AWD solenoid |
Internal malfunction of electronic controlled coupling |
| C1205 |
AWD control unit |
Internal malfunction of AWD control unit |
| C1210 |
ECM |
Malfunction of engine control system
- Accelerator pedal position signal error
- Engine speed signal error
|
| P1804 |
AWD control unit |
Internal malfunction of AWD control unit |
| P1809 |
AWD control unit |
Internal malfunction of AWD control unit |
| P1826 |
Transfer fluid temperature sensor |
Internal malfunction of electric controlled coupling |
| U1000 |
CAN communication line |
- CAN communication error
- Malfunction of AWD control unit
|
| U1010 |
AWD control unit |
Malfunction of AWD control unit |