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.)

Mode
Warning lamp
DTC
Detected area (Error area)
Error area and root cause
Protection function
Blinking*1

AWD control unit
Transfer assembly in protection mode. It is not malfunction.
(Internal temperature rise of electric controlled coupling)
Blinking*2

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 electric 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
OFF
P1826
Transmission fluid temperature sensor
Malfunction of transmission fluid temperature sensor system
ON
U1000
CAN communication line
  • CAN communication error
  • Malfunction of AWD control unit
U1010
AWD control unit
Malfunction of AWD control unit
*1: Quick blinking: 2 times/second (blinking for approximately 1 minute and then turned OFF)
*2: Slow blinking: 1 time/2 seconds (continuing to blink until ignition switch is turned OFF)