Infiniti QX56 (Z62). Manual - part 476

DLN-104

< SYMPTOM DIAGNOSIS >

[TRANSFER: ATX90A]

INFORMATION DISPLAY IS NOT DISPLAYED

INFORMATION DISPLAY IS NOT DISPLAYED

Description

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Information display is not displayed.
NOTE:
When the combination meter receives 4WD shift switch signal, it displays a message on the information dis-
play and inform the driver of 4WD mode status. About indication contents, refer to 

DLN-18, "4WD SYSTEM :

System Description"

 (4WD mode).

Diagnosis Procedure

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1.

CHECK 4WD SHIFT SWITCH

Perform trouble diagnosis for 4WD shift switch. Refer to 

DLN-67, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK 4WD MODE INDICATOR LAMP

Perform trouble diagnosis for 4WD mode indicator. Refer to 

DLN-98, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK THE INFORMATION DISPLAY

Check that information except 4WD mode is displayed on information display.

Is the inspection result normal?

YES

>> Replace transfer control unit. Refer to 

DLN-107, "Removal and Installation"

.

NO

>> Check information display. Refer to 

MWI-29, "On Board Diagnosis Function"

.

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

DLN-105

< SYMPTOM DIAGNOSIS >

[TRANSFER: ATX90A]

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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

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Use the chart below to find the cause of the symptom. The numbers indicate the order of the inspection. If necessary, repair or replace these
parts.

Reference

DLN

-10

6,

 "

Inspe

c

ti

on

"

—

F

ron

t o

il se

al

: 

DLN-109, "

Exp

lod

ed

 V

ie

w

"

Re

ar o

il 

se

al

: 

DLN-1

1

1

, "

E

x

p

lod

ed

 V

ie

w

"

—

—

—

SUSPECTED PARTS
(Possible cause)

T

R

ANSFER F

L

UID (Level

 low)

T

R

ANSFER F

L

UID (W

rong)

T

R

ANSFER F

L

UID (Level

 too high)

LI

QUI

D

 GASKET

 (Dam

ag

ed

)

OIL

 SEA

L (W

o

rn o

r da

m

age

d)

GEAR

 (W

orn

 o

r 

da

ma

ge

d)

B

EARING (W

orn

 or 

da

ma

ge

d)

T

R

ANSFER CAS

E

 (Damaged)

Symptom

Noise

1

2

3

3

3

Transfer fluid leakage

4

1

2

2

3

DLN-106

< PERIODIC MAINTENANCE >

[TRANSFER: ATX90A]

TRANSFER FLUID

PERIODIC MAINTENANCE

TRANSFER FLUID

Inspection

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FLUID LEAKAGE

Check transfer surrounding area (oil seal, drain plug, and filler plug etc.) for fluid leakage.

FLUID LEVEL

1.

Remove filler plug (1) and gasket. Then check that fluid is filled
up from mounting hole for the filler plug. 

CAUTION:

Never start engine while checking fluid level. 

2.

Set a new gasket onto filler plug (1), and install it on transfer and
then tighten to the specified torque. 

CAUTION:

Never reuse gasket.

Draining

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1.

Run the vehicle to warm up the transfer unit sufficiently.

2.

Stop the engine.

3.

Remove the drain plug (1) and drain transfer fluid. 

4.

Set a new gasket onto drain plug (1), and install it to transfer and
tighten to the specified torque. 

CAUTION:

Never reuse gasket.

Refilling

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1.

Remove filler plug (1). Fill up with new transfer fluid up to mount-
ing hole for the filler plug. 

CAUTION:

Carefully fill the fluid. (Fill up for approximately 3 minutes.)

2.

Leave the vehicle for 3 minutes, and check the fluid level again.

3.

Set a new gasket onto filler plug, and install it on transfer and
tighten to the specified torque.

CAUTION:

Never reuse gasket.

4.

Perform learning of transfer fluid viscosity. Refer to 

DLN-47, "Work Procedure"

.

Specified torque

: 33 N·m (3.4 kg-m, 24 ft-lb)

JPDIE0295ZZ

Specified torque

: 33 N-m (3.4 kg-m, 24 ft-lb)

JPDIE0245ZZ

Fluid grade and Viscosity

: Refer to 

MA-10, "Fluids 

and Lubricants"

. 

Fluid capacity

: Refer to 

DLN-124, "Gen-

eral Specifications"

. 

Specified torque

: 33 N-m (3.4 kg-m, 24 ft-lb)

JPDIE0295ZZ

TRANSFER CONTROL UNIT

DLN-107

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

TRANSFER CONTROL UNIT

Removal and Installation

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REMOVAL

1.

Turn the ignition switch OFF.

2.

Disconnect negative battery terminal.

CAUTION:

Wait for 5 seconds after turning ignition switch OFF.

3.

Remove the glove box assembly. Refer to 

IP-14, "Removal and Installation"

.

4.

Disconnect the transfer control unit connector.

5.

Move instrument lower cover to backward. Refer to 

IP-14, "Removal and Installation"

.

6.

Remove the transfer control unit.

INSTALLATION

Note the following, and install in the reverse order of removal.
• When replacing transfer control unit, perform writing unit parameter and initial calibration. Refer to 

DLN-41,

"Work Procedure"

.