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 SRS 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 per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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
harness connectors.

Precautions for NVIS/IVIS (NISSAN/INFINITI VEHICLE IMMOBILIZER SYSTEM -
NATS) (If Equipped)

EAS001RI

NVIS/IVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of NVIS/IVIS
(NATS).
Both of the originally supplied ignition key IDs have been NVIS/IVIS (NATS) registered.
The security indicator is located on the instrument panel. The indicator blinks when the immobilizer system is
functioning.
Therefore, NVIS/IVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.

●

When NVIS/IVIS (NATS) detects trouble, the security indicator lamp lights up while ignition switch is in
"ON" position.
This lighting up indicates that the anti-theft is not functioning, so prompt service is required.

●

When servicing NVIS/IVIS (NATS) (trouble diagnoses, system initialization and additional registration of
other NVIS/IVIS (NATS) ignition key IDs), CONSULT-II hardware and CONSULT-II NVIS/IVIS (NATS)
software is necessary.
Regarding the procedures of NVIS/IVIS (NATS) initialization and NVIS/IVIS (NATS) ignition key ID regis-
tration, refer to CONSULT-II operation manual, NVIS/IVIS (NATS).

Therefore, CONSULT-II NVIS/IVIS (NATS) software (program card and operation manual) must be kept
strictly confidential to maintain the integrity of the anti-theft function.

●

When servicing NVIS/IVIS (NATS) (trouble diagnoses, system initialization and additional registration of
other NVIS/IVIS (NATS) ignition key IDs), it may be necessary to re-register original key identification.
Therefore, be sure to receive all keys from vehicle owner. A maximum of four or five key IDs can be regis-
tered into NVIS/IVIS (NATS).

●

When failing to start the engine first time using the key of NVIS/IVIS (NATS), start as follows.

Leave the ignition key in "ON" position for approximately 5 seconds.

Turn ignition key to "OFF" or "LOCK" position and wait approximately 5 seconds.

Repeat step 1 and 2 again.

Restart the engine while keeping the key separate from any others on key-chain.

GI-4

PRECAUTIONS

2006 Pathfinder

General Precautions

EAS001RJ

●

Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any inflammable
materials. Special care should be taken when handling any
inflammable or poisonous materials, such as gasoline, refriger-
ant gas, etc. When working in a pit or other enclosed area, be
sure to properly ventilate the area before working with hazard-
ous materials.
Do not smoke while working on the vehicle.

●

Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
These operations should be done on a level surface.

●

When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.

●

Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.

●

If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.

●

To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.

●

Dispose of drained oil or the solvent used for cleaning parts in
an appropriate manner.

●

Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.

●

Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.

●

Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.

●

Replace inner and outer races of tapered roller bearings and needle bearings as a set.

●

Arrange the disassembled parts in accordance with their assembled locations and sequence.

●

Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.

●

After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.

●

Use only the fluids and lubricants specified in this manual.

SGI285

SGI231

SEF289H

SGI233

PRECAUTIONS

GI-5

2006 Pathfinder

●

Use approved bonding agent, sealants or their equivalents when required.

●

Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.

●

When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.

●

Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.

WARNING:

To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.

Precautions for Three Way Catalyst

EAS001RK

If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.

●

Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.

●

When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.

●

Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.

Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.

Precautions for Fuel (Unleaded Premium Gasoline Recommended)

EAS001WR

Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91).
For improved vehicle performance, NISSAN/INFINITI recommend the use of unleaded premium gasoline with
an octane rating of at least 91 AKI number (Research octane number 96). E-85 fuel (85% fuel ethanol, 15%
unleaded gasoline) may only be used in vehicles specifically designed for E-85 fuel (i.e. Flexible Fuel Vehicle
- FFV models).

CAUTION:

Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.

PBIC0190E

SGI234

GI-6

PRECAUTIONS

2006 Pathfinder

Precautions for Multiport Fuel Injection System or Engine Control System

EAS001RM

●

Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.

●

Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.

●

Be careful not to jar components such as ECM and mass air
flow sensor.

Precautions for Hoses

EAS001RN

HOSE REMOVAL AND INSTALLATION

●

To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.

●

To reinstall the rubber hose securely, make sure of hose inser-
tion length and clamp orientation. (If tube is equipped with hose
stopper, insert rubber hose into tube until it butts up against
hose stopper.)

HOSE CLAMPING

●

If old rubber hose is re-used, install hose clamp in its original
position (at the indentation where the old clamp was). If there is
a trace of tube bulging left on the old rubber hose, align rubber
hose at that position.

●

Discard old clamps; replace with new ones.

SGI787

SMA019D

SMA020D

SMA021D

PRECAUTIONS

GI-7

2006 Pathfinder

●

After installing leaf spring clamps, apply force to them in the
direction of the arrow, tightening rubber hose equally all around.

Precautions for Engine Oils

EAS001RO

Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.

HEALTH PROTECTION PRECAUTIONS

●

Avoid prolonged and repeated contact with oils, particularly used engine oils.

●

Wear protective clothing, including impervious gloves where practicable.

●

Do not put oily rags in pockets.

●

Avoid contaminating clothes, particularly underpants, with oil.

●

Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.

●

First aid treatment should be obtained immediately for open cuts and wounds.

●

Use barrier creams, applying them before each work period, to help the removal of oil from the skin.

●

Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepa-
rations containing lanolin replace the natural skin oils which have been removed.

●

Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.

●

If skin disorders develop, obtain medical advice without delay.

●

Where practical, degrease components prior to handling.

●

Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.

ENVIRONMENTAL PROTECTION PRECAUTIONS

Dispose of used oil and used oil filters through authorized waste disposal contractors to licensed waste dis-
posal sites, or to the waste oil reclamation trade. If in doubt, contact the local authority for advice on disposal
facilities.
It is illegal to pour used oil on to the ground, down sewers or drains, or into water sources.
The regulations concerning pollution vary between regions.

Precautions for Air Conditioning

EAS001RP

Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to

ATC-154, "HFC-134a (R-134a) Service Procedure"

for specific instructions.

SMA022D

GI-8

HOW TO USE THIS MANUAL

2006 Pathfinder

HOW TO USE THIS MANUAL

PFP:00008

Description

EAS001RQ

This volume explains “Removal, Disassembly, Installation, Inspection and Adjustment” and “Trouble Diag-
noses”.

Terms

EAS001RR

●

The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal
injury and/or damage to some part of the vehicle.
WARNING indicates the possibility of personal injury if instructions are not followed.
CAUTION indicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTS except WARNING and CAUTION give you helpful information.
Standard value:Tolerance at inspection and adjustment.
Limit value:The maximum or minimum limit value that should not be exceeded at inspection and adjust-
ment.

Units

EAS001RS

●

The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit),
and alternatively expressed in the metric system and in the yard/pound system.
“Example”

Contents

EAS001RT

●

ALPHABETICAL INDEX is provided at the end of this manual so that you can rapidly find the item and
page you are searching for.

●

A QUICK REFERENCE INDEX, a black tab (e.g.

) is provided on the first page. You can quickly find

the first page of each section by matching it to the section's black tab.

●

THE CONTENTS are listed on the first page of each section.

●

THE TITLE is indicated on the upper portion of each page and shows the part or system.

●

THE PAGE NUMBER of each section consists of two or three letters which designate the particular sec-
tion and a number (e.g. “BR-5”).

●

THE SMALL ILLUSTRATIONS show the important steps such as inspection, use of special tools, knacks
of work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic tran-
saxle or transmission, etc. are presented in a step-by-step format where necessary.

Outer Socket Lock Nut

: 59 - 78 N-m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)

Content .. 256 257 258 259 ..