AWD CONTROL UNIT

TRANSFER

Reference Value
Wiring Diagram - AWD SYSTEM -
Fail-Safe
DTC Inspection Priority Chart
DTC Index

Reference Value

VALUES ON THE DIAGNOSIS TOOL

*: The values are changed by throttle opening and engine speed.
Monitor item	Condition	Value/Status
STOP LAMP SW	Brake pedal: Depressed	On
	Brake pedal: Released	Off
ENG SPEED SIG	Engine stopped (Engine speed: Less than 400 rpm)	Stop
	Engine running (Engine speed: 400 rpm or more)	Run
ETS ACTUATOR	Engine stopped (Ignition switch: ON)	Off
	Engine running	On
4WD WARN LAMP	AWD warning lamp: ON	On
	AWD warning lamp: OFF	Off
4WD MODE SW	Always	##
4WD MODE MON	Engine running	AUTO
DIS-TIRE MONI	Vehicle running with normal size tire installed	0 – 4 mm
	Vehicle running with improper size tire installed (Front/rear tire size difference, wear condition)	4 – 8 mm, 8 – mm
P BRAKE SW	Parking brake operated	On
	Parking brake not operated	Off
BATTERY VOLT	Always	Battery voltage
THRTL POS SEN	When depressing accelerator pedal (Value rises gradually in response to throttle position.)	0 – 100%
ETS SOLENOID	Engine running At idle speed	Approx. 0.000 A
	Engine running 3,000 rpm or more constant	Approx. 0.000 – 0.500 A*
FR RH SENSOR	Vehicle stopped	0.00 km/h (0.00 mph)
	Vehicle running ■ CAUTION ■ Check air pressure of tire under standard condition.	Approx. equal to the indication on speedometer (Inside of ±10%)
FR LH SENSOR	Vehicle stopped	0.00 km/h (0.00 mph)
	Vehicle running ■ CAUTION ■ Check air pressure of tire under standard condition.	Approx. equal to the indication on speedometer (Inside of ±10%)
RR RH SENSOR	Vehicle stopped	0.00 km/h (0.00 mph)
	Vehicle running ■ CAUTION ■ Check air pressure of tire under standard condition.	Approx. equal to the indication on speedometer (Inside of ±10%)
RR LH SENSOR	Vehicle stopped	0.00 km/h (0.00 mph)
	Vehicle running ■ CAUTION ■ Check air pressure of tire under standard condition.	Approx. equal to the indication on speedometer (Inside of ±10%)

TERMINAL LAYOUT

PHYSICAL VALUES

*: The values are changed by throttle opening and engine speed.
**■ CAUTION ■**
**When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.**
Terminal No. (Wire color)		Description		Condition	Value (Approx.)
+	-	Signal name	Input/Output
1 (R)	Ground	AWD solenoid power supply	Output	Engine speed: At idle	0 V
				Engine speed: 3,000 rpm or more constant	2.5 V*
2 (G)	Ground	AWD solenoid ground	—	Engine speed: At idle	0 V
				Engine speed: 3,000 rpm or more constant	0 V
7 (W)	Ground	Ignition switch	Input	Ignition switch: ON	Battery voltage
				Ignition switch: OFF	0 V
8 (L)	—	CAN-H	Input/Output	—	—
9 (Y)	Ground	Power supply (AWD solenoid)	Input	Always	Battery voltage
10 (B)	Ground	Ground	—	Always	0 V
11 (B)	Ground	Ground	—	Always	0 V
16 (P)	—	CAN-L	Input/Output	—	—

Wiring Diagram - AWD SYSTEM -

Fail-Safe

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.)

*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)
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
	ON	U1000	CAN communication line	CAN communication error Malfunction of AWD control unit
		U1010	AWD control unit	Malfunction of AWD control unit

DTC Inspection Priority Chart

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.

Priority	Detected items (DTC)
1	U1000 CAN COMM CIRCUIT U1010 CONTROL UNIT (CAN)
2	C1201 CONTROLLER FAILURE C1205 4WD ACTUATOR RLY
3	C1203 ABS SYSTEM C1210 ENGINE SIGNAL 1 P1826 OIL TEMP SEN
4	C1204 4WD SOLENOID

DTC Index

DTC	Display Items	Reference
C1201	CONTROLLER FAILURE	DTC Logic (GT-R certified NISSAN dealer)
C1203	ABS SYSTEM	DTC Logic (GT-R certified NISSAN dealer)
C1204	4WD SOLENOID	DTC Logic (GT-R certified NISSAN dealer)
C1205	4WD ACTUATOR RLY	DTC Logic (GT-R certified NISSAN dealer)
C1210	ENGINE SIGNAL 1	DTC Logic (GT-R certified NISSAN dealer)
P1826	OIL TEMP SEN	DTC Logic (GT-R certified NISSAN dealer)
U1000	CAN COMM CIRCUIT	DTC Logic (GT-R certified NISSAN dealer)
U1010	CONTROL UNIT (CAN)	DTC Logic (GT-R certified NISSAN dealer)