Infiniti FX35, FX50 (S51). Manual - part 549

AWD WARNING LAMP

DLN-31

< DTC/CIRCUIT DIAGNOSIS >

[TRANSFER: ETX13C]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

NO

>> Replace AWD control unit. Refer to 

DLN-58, "Exploded View"

.

4.

CHECK COMBINATION METER POWER SUPPLY CIRCUIT

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

MWI-58, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the error-detected parts.

DLN-32

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: ETX13C]

AWD CONTROL UNIT

ECU DIAGNOSIS INFORMATION

AWD CONTROL UNIT

Reference Value

INFOID:0000000005249075

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%)

AWD CONTROL UNIT

DLN-33

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: ETX13C]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

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.

JSDIA0057ZZ

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

+

-

Signal name

Input/

Output

1

(BR)

Ground

AWD solenoid power sup-
ply

Output

Engine speed: At idle

0 V

Engine speed: 3,000 rpm or more constant

2.5 V*

2

(Y)

Ground

AWD solenoid ground

—

Engine speed: At idle

0 V

Engine speed: 3,000 rpm or more constant

0 V

3

(W)

Ground

Transfer fluid temperature 
sensor ground

—

Always

0  V

7

(GR)

Ground

Ignition switch

Input

Ignition switch: ON

Battery voltage

Ignition switch: OFF

0 V

8

(L)

—

CAN-H

Input/

Output

—

—

9

(O)

Ground

Power supply (AWD sole-
noid)

Input

Always

Battery voltage

10

(B)

Ground

Ground

—

Always

0 V

11

(B)

Ground

Ground

—

Always

0 V

13

(LG)

Ground

Transfer fluid temperature 
sensor power supply

Output

Transfer temperature: 20C

°

 (68

°

F)

1.56 V

Transfer temperature: 80C

°

 (176

°

F)

0.44 V

15

(Y)

Ground

Power supply (AWD con-
trol unit)

Input

Always

Battery voltage

16

(P)

—

CAN-L

Input/

Output

—

—

DLN-34

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: ETX13C]

AWD CONTROL UNIT

Wiring Diagram - AWD SYSTEM -

INFOID:0000000005249076

JCDWA0568GB