AWD SYSTEM: Fail-safe

When a system malfunction occurs, the AWD warning lamp turns ON and the AWD control becomes 2WD state.

Detected DTC	Possible cause	AWD warning lamp status	Vehicle condition
P1804	Internal malfunction of AWD control module	OFF	Normal control continues.
P1808	ABS actuator and electric unit (control unit) Malfunction of ABS actuator and electric unit (control unit) circuit error Wheel speed sensor error AWD control module CAN communication line	ON	Front and rear distribution control stops.
P1809	Internal malfunction of AWD control module
P1811	Malfunction of AWD control module power supply circuit (open or short) Malfunction of AWD control module Battery
P1813	AWD mode switch Internal malfunction of AWD mode switch Malfunction of AWD mode switch circuit AWD control module
P181B	Self-shut of AWD control module is incomplete.	OFF	Normal control continues.
P181D	ECM AWD control module CAN communication line	ON	Front and rear distribution control stops. NOTE: The state becomes AWD only when a turning difference occurs between front and rear wheels.
P181E	Steering angle sensor Steering angle sensor error Malfunction of steering angle sensor circuit Malfunction of AWD control module CAN communication line	OFF	Right and left rear wheels difference control stops.
P181F	Writing unit characteristics is incomplete.	ON	Front and rear distribution control stops.
P1820	ECM AWD control module CAN communication line	OFF	Normal control continues.
P1829	ECM AWD control module CAN communication line	ON	Front and rear distribution control stops.
P182D	Internal malfunction of electric controlled coupling (left) Malfunction of AWD solenoid (left) power supply circuit (open or short) Malfunction of AWD control module
P182E	Internal malfunction of electric controlled coupling (right) Malfunction of AWD solenoid (right) power supply circuit (open or short) Malfunction of AWD control module
P1830	ABS actuator and electric unit (control unit) AWD control module CAN communication line	OFF	Normal control continues.
P1831	ABS actuator and electric unit (control unit) AWD control module CAN communication line
P1832	ABS actuator and electric unit (control unit) AWD control module CAN communication line
P183B	Malfunction of AWD solenoid power supply circuit Malfunction of AWD control module Malfunction of AWD control module power supply circuit (open or short) Battery	ON	Front and rear distribution control stops.
P183C	ABS actuator and electric unit (control unit) Yaw rate/side/decel G sensor (Decel G sensor signal) AWD control module CAN communication line	OFF	Right and left rear wheels difference control stops.
P183D	ABS actuator and electric unit (control unit) Yaw rate/side/decel G sensor (Side G senesor signal) AWD control module CAN communication line
P183E	ABS actuator and electric unit (control unit) Yaw rate/side/decel G sensor (Yaw rate signal) AWD control module CAN communication line
P183F	Sensor related to CVT TCM AWD control module CAN communication line
P1840	Sensor related to CVT TCM AWD control module CAN communication line
P1864	Sensor related to CVT TCM AWD control module CAN communication line
P1865	Sensor related to CVT TCM AWD control module CAN communication line
U1000	CAN communication error	ON	Front and rear distribution control stops.
U1010	Internal malfunction of AWD control module	ON	Front and rear distribution control stops.