Infiniti EX35. Manual - part 518

DLN-22

< COMPONENT DIAGNOSIS >

[TRANSFER: ETX13B]

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK AWD SOLENOID POWER SUPPLY (2)

1.

Check the 10A fuse (#33).

2.

Check the harness for open or short between AWD control unit harness connector No.9 terminal and fuse
box.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit. Refer to 

PG-6, "Wiring Diagram - BAT-

TERY POWER SUPPLY -"

.

NO

>> Repair or replace damaged parts.

5.

CHECK AWD SOLENOID GROUND

1.

Turn the ignition switch OFF.

2.

Check the continuity between AWD control unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace damaged parts.

AWD control unit

—

Voltage

Connector

Terminal

F108

9

Ground

Battery voltage

AWD control unit

—

Continuity

Connector

Terminal

F108

10

Ground

Existed

11

AWD WARNING LAMP

DLN-23

< COMPONENT DIAGNOSIS >

[TRANSFER: ETX13B]

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AWD WARNING LAMP

Description

INFOID:0000000003773515

• Turns ON when there is a malfunction in AWD system. AWD warning lamp indicates the vehicle is in fail-safe

mode and shifting to rear-wheel drive or 4-wheel drive (front-wheels still have some driving torque).

• Also turns ON when ignition switch is turned ON, for the purpose of lamp check. Turns OFF approximately

for 1 second after the engine starts if system is normal.

AWD WARNING LAMP INDICATION

CAUTION:

• AWD warning lamp also turns ON due to data reception error, CAN communication error etc.

Component Function Check

INFOID:0000000003773516

1.

CHECK AWD WARNING LAMP FUNCTION 

1.

Turn ignition switch ON.

2.

Make sure that AWD warning lamp lights up.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to diagnosis procedure. Refer to 

DLN-23, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003773517

1.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis for power supply and ground circuit. Refer to 

DLN-21, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning part.

2.

PERFORM SELF-DIAGNOSIS

With CONSULT-III

Perform AWD control unit self-diagnosis.

Is any DTC detected?

YES

>> Check the DTC.

NO

>> GO TO 3.

3.

CHECK AWD WARNING LAMP SIGNAL

With CONSULT-III

1.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

2.

Check “4WD WARN LAMP” of AWD control unit CONSULT-III “DATA MONITOR”.

Does the item on “DATA MONITOR” indicate “On”?

YES

>> GO TO 4.

Condition

AWD warning lamp

Lamp check

Turns ON when ignition switch is turned ON. Turns OFF ap-

prox. 1 second after the engine start.

AWD system malfunction

ON

Protection function is activated due to heavy load to electric controlled 
coupling. (AWD system is not malfunctioning and AWD system chang-
es to rear wheel drive.)

Quick blinking: 2 times/second

 (Blinking in approx. 1 minute and then turning OFF)

Large difference in diameter of front/rear tires

Slow blinking: 1 time/2 seconds

(Continuing to blink until turning ignition switch OFF)

Other than above (system normal)

OFF

DLN-24

< COMPONENT DIAGNOSIS >

[TRANSFER: ETX13B]

AWD WARNING LAMP

NO

>> Replace AWD control unit. Refer to 

DLN-44, "Exploded View"

.

4.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

Perform the trouble diagnosis for combination meter power supply circuit. Refer to 

MWI-53, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the malfunctioning part.

AWD CONTROL UNIT

DLN-25

< ECU DIAGNOSIS >

[TRANSFER: ETX13B]

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ECU DIAGNOSIS

AWD CONTROL UNIT

Reference Value

INFOID:0000000003561203

VALUES ON THE DIAGNOSIS TOOL

*: The values are changed by throttle opening and engine speed.

TERMINAL LAYOUT

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%)