Nissan Pathfinder (2007 year). Manual - part 406

TROUBLE DIAGNOSIS FOR SYMPTOMS

TF-129

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2007 Pathfinder

5. 

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

TF-37, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

 .

OK or NG

OK

>> Inspection End.

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

4WD Warning Lamp Flashes Slowly

EDS00378

SYMPTOM:

While driving, 4WD warning lamp flashes slowly. (Continues to flash until turning ignition switch OFF.)

NOTE:
Slow flashing: 1 time/2 seconds

DIAGNOSTIC PROCEDURE

1. 

CHECK TIRE

Check the following.

●

Tire pressure

●

Wear condition

●

Longitudinal tire size (There is no difference between longitudinal tires.)

OK or NG

OK

>> GO TO 2. 

NG

>> Repair or replace damaged parts.

2. 

CHECK TRANSFER FLUID TEMPERATURE

Perform trouble diagnosis for transfer fluid temperature system. Refer to 

TF-103, "Transfer Fluid Temperature"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

CHECK CLUTCH PRESSURE SWITCH

Perform trouble diagnosis for clutch pressure switch system. Refer to 

TF-106, "Clutch Pressure Switch"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> Inspection End.

NG

>> GO TO 5.

5. 

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

TF-37, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

 .

OK or NG

OK

>> Inspection End.

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

TF-130

[ATX14B]

TROUBLE DIAGNOSIS FOR SYMPTOMS

2007 Pathfinder

Heavy Tight-corner Braking Symptom Occurs

EDS00379

SYMPTOM:

Heavy tight-corner braking symptom occurs when vehicle is driven in AUTO mode and steering wheel
is turned fully to either side.

DIAGNOSTIC PROCEDURE

NOTE:

●

Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode.  This is not
a malfunction.

●

Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions: 4WD shift
switch is "4H" or "4LO", steering wheel is turned fully to either side.

1. 

CHECK SYSTEM FOR CAN COMMUNICATION LINE

Perform self-diagnosis.  Refer to 

TF-47, "SELF-DIAG RESULT MODE"

 .

Is "CAN COMM CIRCUIT [U1000]" displayed?

YES

>> Perform trouble diagnosis for CAN communication line.  Refer to 

TF-114, "CAN Communication

Line"

 .

NO

>> GO TO 2.

2. 

CHECK SYSTEM FOR 4WD SHIFT SWITCH

Perform trouble diagnosis for 4WD shift switch system. Refer to 

TF-64, "4WD Shift Switch"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

CHECK ACCELERATOR PEDAL POSITION SIGNAL CIRCUIT

Perform self diagnosis for ECM.  Refer to 

EC-48, "Emission-related Diagnostic Information"

 .

Is any malfunction deteced by self-diagnosis?

YES

>> Check the malfunctioning system.

NO

>> GO TO 4.

4. 

CHECK SYSTEM FOR CLUTCH PRESSURE SOLENOID

Perform trouble diagnosis for clutch pressure solenoid system. Refer to 

TF-87, "Clutch Pressure Solenoid"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

5. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> Inspection End.

NG

>> GO TO 6.

6. 

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to 

TF-37, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

 .

OK or NG

OK

>> GO TO 7.

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS

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2007 Pathfinder

7. 

CHECK TRANSFER INNER PARTS

1.

Disassemble transfer assembly. Refer to 

TF-146, "Disassembly and Assembly"

 .

2.

Check transfer inner parts.

OK or NG

OK

>> Inspection End.

NG

>> Repair or replace damaged parts.

4WD System Does Not Operate

EDS0037A

SYMPTOM:

The vehicle cannot be put into 4WD mode. (Hydraulic system failure)

DIAGNOSTIC PROCEDURE

1. 

CHECK SYSTEM FOR 4WD SHIFT SWITCH

Perform trouble diagnosis for 4WD shift switch system. Refer to 

TF-64, "4WD Shift Switch"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace damaged parts.

2. 

CHECK SYSTEM FOR CLUTCH PRESSURE SWITCH

Perform trouble diagnosis for clutch pressure switch system. Refer to 

TF-106, "Clutch Pressure Switch"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3. 

SYMPTOM CHECK

Check again.

OK or NG

OK

>> Inspection End.

NG

>> GO TO 4.

4. 

CHECK TRANSFER CONTROL UNIT

 Check transfer control unit input/output signal. Refer to 

TF-37, "Transfer Control Unit Input/Output Signal Ref-

erence Values"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

5. 

CHECK TRANSFER INNER PARTS

1.

Disassemble transfer assembly. Refer to 

TF-146, "Disassembly and Assembly"

 .

2.

Check transfer inner parts.

OK or NG

OK

>> Inspection End.

NG

>> Repair or replace damaged parts.

TF-132

[ATX14B]

TRANSFER CONTROL UNIT

2007 Pathfinder

TRANSFER CONTROL UNIT

PFP:33084

Removal and Installation

EDS0037B

REMOVAL

1.

Set transfer state as 2WD when 4WD shift switch is at 2WD, or as AUTO when 4WD shift switch is at
AUTO.

CAUTION:

When removing transfer control unit, transfer state must be at 2WD or AUTO.

2.

Turn the ignition switch OFF and disconnect negative battery terminal.

3.

Remove the lower instrument panel LH. Refer to 

IP-14, "LOWER INSTRUMENT PANEL LH"

 .

4.

Disconnect the two transfer control unit connectors.

5.

Remove the transfer control unit bolts.

6.

Remove the transfer control unit.

INSTALLATION

Installation is in the reverse order of removal.

●

When installing the transfer control unit, tighten bolts to the specified torque.

CAUTION:

Do not connect harness connector to transfer control unit when 4WD shift switch is at 4LO.

●

After the installation, check perform self-diagnosis. Refer to 

TF-52, "Self-diagnostic Procedure"

 . If NG,

adjust position between transfer assembly and transfer control unit. Refer to 

TF-6, "Precautions for Trans-

fer Assembly and Transfer Control Unit Replacement"

 .

LDIA0168E

Transfer control unit bolts

: 3.4 N·m (0.35 kg-m, 30 in-lb)

FRONT OIL SEAL

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2007 Pathfinder

FRONT OIL SEAL

PFP:38189

Removal and Installation

EDS0037C

REMOVAL

1.

Partially drain the transfer fluid. Refer to 

TF-13, "TRANSFER FLUID"

 .

2.

Remove the front propeller shaft. Refer to 

PR-5, "Removal and Installation"

 .

3.

Remove the companion flange self-lock nut using Tool.

4.

Put a matching mark on top of the front drive shaft in line with
the mark on the companion flange.

CAUTION:

Use paint to make the matching mark on the front drive
shaft. Do not damage the front drive shaft.

5.

Remove the companion flange using suitable tool.

6.

Remove the front oil seal from the front case using Tool.

CAUTION:

Do not damage front case.

Tool number

: KV40104000 (

—

)

SDIA2657E

SDIA2658E

WDIA0193E

Tool number

: ST33290001 (J-34286)

LDIA0144E

TF-134

[ATX14B]

FRONT OIL SEAL

2007 Pathfinder

INSTALLATION

1.

Install the new front oil seal until it is flush with the end face of
the front case using Tool.

CAUTION:

●

Do not reuse oil seal.

●

Apply petroleum jelly to oil seal.

2.

Align the matching mark of the front drive shaft with the match-
ing mark of the companion flange, then install the companion
flange.

3.

Install the new self-lock nut. Tighten to the specified torque
using Tool. Refer to 

TF-146, "COMPONENTS"

 .

CAUTION:

Do not reuse self-lock nut.

4.

Install the front propeller shaft. Refer to 

PR-5, "Removal and

Installation"

 .

5.

Refill the transfer with fluid and check for fluid leakage and fluid
level. Refer to 

TF-13, "TRANSFER FLUID"

 .

Tool number

: KV38100500 (

—

)

SDIA2662E

SDIA2658E

Tool number

: KV40104000 (

—

)

LDIA0147E

REAR OIL SEAL

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2007 Pathfinder

REAR OIL SEAL

PFP:33140

Removal and Installation

EDS0037D

REMOVAL

1.

Partially drain the transfer fluid. Refer to 

TF-13, "TRANSFER FLUID"

 .

2.

Remove the rear propeller shaft. Refer to 

PR-10, "Removal and Installation"

 .

3.

Remove the dust cover from the rear case.

CAUTION:

Do not damage the rear case.

4.

Remove the rear oil seal from the rear case using Tool.

CAUTION:

Do not damage the rear case.

INSTALLATION

1.

Install the new rear oil seal until it is flush with the end face of the
rear case using Tool.

CAUTION:

●

Do not reuse oil seal.

●

Apply petroleum jelly to oil seal.

2.

Apply petroleum jelly to the circumference of the new dust cover.
Position the new dust cover using the identification mark as
shown.

CAUTION:

●

Do not reuse dust cover.

●

Position the identification mark at the position shown.

WDIA0127E

Tool number

: ST33290001 (J-34286)

LDIA0139E

Tool number

: ST30720000 (J-25405)

LDIA0140E

SDIA3436E

TF-136

[ATX14B]

REAR OIL SEAL

2007 Pathfinder

3.

Install the new dust cover to the rear case using Tool.

CAUTION:

●

Do not reuse dust cover.

●

Apply petroleum jelly to dust cover.

4.

Install the rear propeller shaft. Refer to 

PR-10, "Removal and

Installation"

 .

5.

Refill the transfer with fluid and check for fluid leakage and fluid
level. Refer to 

TF-13, "TRANSFER FLUID"

 .

Tool number

: KV40105310 (

—

)

PDIA0116E