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Nissan Pathfinder (2009 year). Manual - part 222

DLN-258

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

4WD WARNING LAMP FLASHES SLOWLY

4WD WARNING LAMP FLASHES SLOWLY

Description

INFOID:0000000003937378

The 4WD warning lamp flashes slowly while driving (1 time / 2 seconds). The lamp continues to flash until the
ignition switch is turned OFF.

Diagnosis Procedure

INFOID:0000000003937379

CHECK TIRES

Check the following. Refer to

WT-52, "Tire"

• Tire size
• Tire wear
• Tire pressure
Are the inspection results normal?

YES

>> GO TO 2.

>> Repair or replace damaged parts.

SYMPTOM CHECK

Check again.

Does the symptom still occur?

YES

>> GO TO 3.

>> Inspection End.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to

DLN-233, "Reference Value"

Are the inspection results normal?

YES

>> Inspection End.

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

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

2009 Pathfinder

ATP SWITCH

DLN-259

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

DLN

ATP SWITCH

Description

INFOID:0000000003937380

The ATP indicator does not come on when the transfer is in neutral and the A/T lever is in neutral or, the ATP
indicator stays on when the transfer case is not in neutral.

Diagnosis Procedure

INFOID:0000000003937381

DIAGNOSTIC PROCEDURE

CHECK ATP SWITCH SIGNAL

With CONSULT-III

Start engine.

Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.

Read out the value of “ATP SWITCH”.

Without CONSULT-III

Start engine.

Check voltage between transfer control unit harness connector
terminal and ground.

Are the inspection results normal?

YES

>> GO TO 5.

>> GO TO 2.

CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ATP SWITCH

Turn ignition switch “OFF”. (Stay for at least 5 seconds.)

Disconnect transfer control unit harness connector and the ATP switch harness connector.

Check continuity between transfer control unit harness connec-
tor M165 terminal 23 and ATP switch harness connector F71
terminal 8.

Also check harness for short to ground and short to power.

Does continuity exist?

YES

>> GO TO 3.

>> Repair or replace damaged parts.

Condition

Display value

• Vehicle stopped
• Engine running
• A/T selector lever

“N” position

• Brake pedal de-

pressed

4WD shift switch: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)

Except the above

OFF

Connector

Terminal

Condition

Voltage

(Approx.)

M165

23 -

Ground

• Vehicle stopped
• Engine running
• A/T selector lever

“N” position

• Brake pedal de-

pressed

4WD shift switch: 4H
to 4LO or 4LO to 4H
(While actuator motor
is operating.)

Except the above

Battery
voltage

SDIA3375E

Continuity should exist.

SDIA3376E

2009 Pathfinder

DLN-260

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

ATP SWITCH

CHECK GROUND CIRCUIT

Turn ignition switch “OFF”. (Stay for at least 5 seconds.)

Disconnect ATP switch harness connector.

Check continuity between ATP switch harness connector F71
terminal 9 and ground.

Also check harness for short to power.

Does continuity exist?

YES >> GO TO 4.
NO

>> Repair open circuit or short to power in harness or con-

nectors.

CHECK ATP SWITCH

Turn ignition switch “OFF”. (Stay for at least 5 seconds.)

Remove ATP switch. Refer to

DLN-194, "Component Parts Location"

Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.

Are the inspection results normal?

YES

>> GO TO 5.

>> Replace ATP switch.

CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to

DLN-233, "Reference Value"

Are the inspection results normal?

YES

>> GO TO 6.

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

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

CHECK ATP WARNING LAMP

Turn ignition switch “ON”. (Do not start engine.)

A/T selector lever “N” position and engage the parking brake.

Switch 4WD shift switch from 4H to 4LO or 4LO to 4H.

Does the ATP warning lamp turn ON while the actuator motor is operating?

YES

>> Inspection End.

>> Refer to

DLN-255, "Diagnosis Procedure"

Component Inspection

INFOID:0000000003937382

Turn ignition switch “OFF”. (Stay for at least 5 seconds.)

Disconnect ATP switch harness connector.

Remove ATP switch. Refer to

DLN-194, "Component Parts Location"

Continuity should exist.

SDIA2394E

Terminal

Condition

Continuity

8 - 9

Push ATP switch

Yes

Release ATP switch

SDIA2395E

2009 Pathfinder

ATP SWITCH

DLN-261

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

DLN

Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.

If the inspection results are abnormal replace the ATP switch.

Terminal

Condition

Continuity

8 - 9

Push ATP switch

Yes

Release ATP switch

SDIA2395E

2009 Pathfinder

DLN-262

< PRECAUTION >

[TRANSFER: TX15B]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000003937383

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

Precaution for Transfer Assembly and Transfer Control Unit Replacement

INFOID:0000000003937384

When replacing transfer assembly or transfer control unit, check the 4WD shift indicator pattern and adjust-
ment of the position between transfer assembly and transfer control unit if necessary.

CHECK 4WD SHIFT INDICATOR PATTERN

Set 4WD shift switch to “2WD”, “4H”, “4LO”, “4H” and “2WD” in order. Stay at each switch position for at
least 2 seconds.

Confirm 4WD shift indicator lamp and 4LO indicator lamp are changed properly as follows.

• If OK, the position between transfer assembly and transfer control unit is correct.
• If NG, the position is different between transfer assembly and transfer control unit.

Adjust the position between transfer assembly and transfer control unit. Refer to pattern table below.

Transfer position adjustment pattern

WDIA0137E

4WD shift switch condition

Refer procedure

4WD shift switch is under “2WD” condition when engine is being stopped.

"METHOD FOR ADJUSTMENT WITH 4WD SHIFT

SWITCH AT “2WD”"

4WD shift switch is under “4H” or “4LO” condition when engine is being stopped.

"METHOD FOR ADJUSTMENT WITH 4WD SHIFT

SWITCH AT “4H” OR “4LO”"

2009 Pathfinder

PRECAUTIONS

DLN-263

< PRECAUTION >

[TRANSFER: TX15B]

DLN

NOTE:

Method of adjustment can be chosen voluntarily, according to location of 4WD shift switch.

METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT “2WD”

Select Adjustment Pattern

Start engine. Run engine for at least 10 seconds.

Check 4WD shift indicator lamp and 4LO indicator lamp.

Pattern A

Stop vehicle and move A/T selector lever to “N” position with brake pedal depressed. Stay in "N" for at
least 2 seconds.

Turn 4WD shift switch to “4LO” position. Stay in "4LO" for at least 2 seconds.

Turn ignition switch “OFF”.

Start engine.

Erase self-diagnosis. Refer to

DLN-198, "CONSULT-III Function (ALL MODE AWD/4WD)"

Check 4WD shift indicator lamp and 4LO indicator lamp again. Refer to "CHECK 4WD SHIFT INDICATOR
PATTERN".
If 4WD shift indicator lamp and 4LO indicator lamp do not indicate proper pattern, install new transfer con-
trol unit and retry the above check.

Pattern B

Stop vehicle and move A/T selector lever to “N” position with brake pedal depressed. Stay in "N" for at
least 2 seconds.

Turn ignition switch “OFF”.

Start engine.

Erase self-diagnosis. Refer to

DLN-198, "CONSULT-III Function (ALL MODE AWD/4WD)"

METHOD FOR ADJUSTMENT WITH 4WD SHIFT SWITCH AT “4H” OR “4LO”

Start engine. Run the engine for at least 10 seconds.

Stop vehicle and move A/T selector lever to “N” position with brake pedal depressed. Stay in "N" for at
least 2 seconds.)

Turn 4WD shift switch to “2WD” position. Stay in "2WD" for at least 2 seconds.

Turn ignition switch “OFF”.

Start engine.

Erase self-diagnosis. Refer to

DLN-198, "CONSULT-III Function (ALL MODE AWD/4WD)"

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000004468087

NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-

TEM).

• Remove and install all control units after disconnecting both battery cables with the ignition knob in the

″

LOCK

″

position.

Indicator lamp condition

Refer procedure

When 4WD shift indicator lamp or 4LO indicator lamp is flashing.

"Pattern A"

Except for above.

"Pattern B"

2009 Pathfinder

DLN-264

< PRECAUTION >

[TRANSFER: TX15B]

PRECAUTIONS

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If DTC is detected, perform trouble diagnosis according to self-diagnostic results.

For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.

OPERATION PROCEDURE

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

Use the Intelligent Key or mechanical key to turn the ignition switch to the

″

ACC

″

position. At this time, the

steering lock will be released.

Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.

Perform the necessary repair operation.

When the repair work is completed, return the ignition switch to the

″

LOCK

″

position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

Perform a self-diagnosis check of all control units using CONSULT-III.

Precaution

INFOID:0000000003937385

• Before connecting or disconnecting the transfer control unit

harness connector, turn ignition switch “OFF” and disconnect
the battery cables. Battery voltage is applied to transfer con-
trol unit even if ignition switch is turned “OFF”.

• When connecting or disconnecting pin connectors into or

from transfer control unit, take care not to damage pin termi-
nals (bend or break).
When connecting pin connectors make sure that there are not
any bends or breaks on transfer control unit pin terminals.

SEF289H

SEF291H

2009 Pathfinder

PRECAUTIONS

DLN-265

< PRECAUTION >

[TRANSFER: TX15B]

DLN

• Before replacing transfer control unit, perform transfer con-

trol unit input/output signal inspection and make sure transfer
control unit functions properly. Refer to

DLN-233, "Reference

Value"

Service Notice

INFOID:0000000003937386

• After overhaul refill the transfer with new transfer fluid.
• Check the fluid level or replace the fluid only with the vehicle parked on level ground.
• During removal or installation, keep inside of transfer clear of dust or dirt.
• Disassembly should be done in a clean work area.
• Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal

parts from becoming contaminated by dirt or other foreign matter.

• Check for the correct installation status prior to removal or disassembly. If matchmarks are required, be cer-

tain they do not interfere with the function of the parts when applied.

• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or

reassembly.

• Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them

with a new ones if necessary.

• Gaskets, seals and O-rings should replaced any time the transfer is disassembled.
• In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If tight-

ening sequence is specified, use it.

• Observe the specified torque when assembling.
• Clean and flush the parts sufficiently and blow-dry them.
• Be careful not to damage sliding surfaces and mating surfaces.
• Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere

with the operation of the transfer.

MEF040DB

2009 Pathfinder

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