NISSAN X-TRAIL 2003 Electronic Repair Manual

FSU-12
FRONT SUSPENSION MEMBER
FRONT SUSPENSION MEMBER
PFP:54401
Removal and InstallationEES00078
REMOVAL
1. Remove tires. Raise vehicle.
2. Remove mounting nuts on lower portion of stabilizer connecting rod from transverse link.
3. Remove transverse link from suspension member, and move the transverse link outward.
4. Remove front exhaust tube mounting rubber from suspension member.
5. Support engine or transmission with a transmission jack.
6. Remove center member from vehicle.
7. Remove steering gear mounting bolts. Remove steering gear and power steering tube bracket from sus-
pension member.
8. Hang steering gear.
9. Remove rear engine mount insulator from suspension member.
10. Remove body-side mounting bolts from member pin stay.
11. Set a transmission jack under suspension member, and remove suspension member mounting nuts.
12. Slowly lower transmission jack to remove suspension member from vehicle.
INSTALLATION
lRefer toFSU-5, "Components"for tightening torque in the reverse order of removal.
lAfter installation, perform final tightening of each part under unladen conditions with tires on ground.
Check wheel alignment. Refer toFSU-6, "
Wheel Alignment".

SERVICE DATA AND SPECIFICATIONS (SDS)
FSU-13
C
D
F
G
H
I
J
K
L
MA
B
FSU
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationEES000J6
Wheel Alignment (Unladen)EES00079
: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Ball JointEES0007A
Wheelarch Height (Unladen)EES000J9
Suspension type Independent Metaphors strut
Shock absorber type Double-acting hydraulic
Stabilizer bar Standard equipment
Drive type4WD
Engine typeQR20DE YD22ET
Camber
Degree minute (Decimal degree)Minimum -0°54¢(0.9°)
Nominal -0°24¢(0.4°)
Maximum 0°36¢(0.6°)
Left and right difference 45¢(0.75°)
Caster
Degree minute (Decimal degree)Minimum 1°42¢(1.7°)
Nominal 2°27¢(2.45°)
Maximum 3°12¢(3.2°)
Left and right difference 45¢(0.75°)
Kingpin offset
Degree minute (Decimal degree)Minimum 12°06¢(12.1°)
Nominal 13°30¢(13.5°)
Maximum 13°36¢(13.6°)
To t a l t o e - i n
Distance (A - B)Minimum 0 mm (0 in)
Nominal 1 mm (0.04 in)
Maximum 2 mm (0.08 in)
Wheel turning angel Refer toPS-35, "
Steering Angle".
Oscillating torque 0.5 - 3.4N ·m (0.05 - 0.35 kg-m,5-30 in-lb)
Measurement on spring balance (cotter pinhole position) 7.94 - 53.97 N (0.81 - 5.50 kg,1.79-12.2 lb)
Sliding torque 0.5 - 3.4N ·m (0.05 - 0.35 kg-m,5-30 in-lb)
Axial endplay 0.1 mm (0.004 in) or less
Applied model QR20DE engine YD22ET engine
215/65R15
Front (Hf) 773 mm (30.43 in) 771 mm (30.35 in)
Rear (Hr) 786 mm (30.94 in) 785 mm (30.91 in)
SFA818A

FSU-14
SERVICE DATA AND SPECIFICATIONS (SDS)
: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
C
D
E
F
G
H
I
J
K
L
MB
GI
SECTION
GENERAL INFORMATION
PRECAUTIONS .......................................................... 3
Description ............................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for NATS (NISSAN ANTI-THEFT SYS-
TEM) ........................................................................ 3
General Precautions ................................................ 4
Precautions for All Mode 4´4 System .................... 5
Precautions for Three Way Catalyst ......................... 5
Precautions for Fuel ................................................. 5
Precautions for Multiport Fuel Injection System or
Engine Control System ............................................ 6
Precautions for Turbocharger (If Equipped) ............. 6
Precautions for Hoses .............................................. 6
HOSE REMOVAL AND INSTALLATION ............... 6
HOSE CLAMPING ................................................ 7
Precautions for Engine Oils ...................................... 7
HEALTH PROTECTION PRECAUTIONS ............. 7
ENVIRONMENTAL PROTECTION PRECAU-
TIONS ................................................................... 7
Precautions for Air Conditioning ............................... 8
HOW TO USE THIS MANUAL ................................... 9
Description ............................................................... 9
Terms ....................................................................... 9
Units ......................................................................... 9
Contents ................................................................... 9
Components ............................................................. 9
SYMBOLS ........................................................... 10
How to Follow Trouble Diagnoses .......................... 10
DESCRIPTION .................................................... 10
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ................................................11
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................... 12
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................... 13
How to Read Wiring Diagrams ............................... 14
CONNECTOR SYMBOLS ................................... 14
SAMPLE/WIRING DIAGRAM - EXAMPL - ......... 16DESCRIPTION .................................................... 17
Abbreviations .......................................................... 22
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ......................................................................... 24
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................... 24
WORK FLOW ...................................................... 24
INCIDENT SIMULATION TESTS ........................ 24
CIRCUIT INSPECTION ....................................... 27
Control Units and Electrical Parts ........................... 32
PRECAUTIONS .................................................. 32
SMJ INSTALLATION ........................................... 34
CONSULT-II CHECKING SYSTEM .......................... 35
Description .............................................................. 35
Function and System Application ........................... 35
Nickel Metal Hydride Battery Replacement ............ 35
Checking Equipment .............................................. 35
CONSULT-II Data Link Connector (DLC) Circuit .... 36
INSPECTION PROCEDURE .............................. 36
LIFTING POINT ......................................................... 37
Special Service Tools ............................................. 37
Garage Jack and Safety Stand ............................... 37
2-pole Lift ................................................................ 38
Board-on Lift ........................................................... 39
TOW TRUCK TOWING ............................................. 40
Tow Truck Towing ................................................... 40
TOWING AN AUTOMATIC TRANSAXLE
MODELWITHFOURWHEELSONGROUND...40
TOWING THE VEHICLE WITH REAR WHEELS
RAISED (WITH FRONT WHEELS ON GROUND)
OR FRONT WHEELS RAISED ........................... 41
Vehicle Recovery (Freeing a stuck vehicle) ............ 41
TIGHTENING TORQUE OF STANDARD BOLTS .... 42
Tightening Torque Table ......................................... 42
IDENTIFICATION INFORMATION ............................ 43
Model Variation ....................................................... 43
IDENTIFICATION NUMBER ................................ 44
IDENTIFICATION PLATE .................................... 45
ENGINE SERIAL NUMBER ................................ 45
AUTOMATIC TRANSAXLE NUMBER ................. 45

GI-2
MANUAL TRANSAXLE NUMBER ....................... 46
Dimensions ............................................................. 46
Wheels & Tires ....................................................... 46TERMINOLOGY ........................................................47
SAE J1930 Terminology List ...................................47

PRECAUTIONS
GI-3
PRECAUTIONSPFP:00001
DescriptionEAS000FN
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EAS000FO
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WA RN ING:
lTo 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.
lImproper 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.
lDo 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 harness connectors.
Precautions for NATS (NISSAN ANTI-THEFT SYSTEM)EAS000FP
NATS will immobilize the engine if someone tries to start it without the registered key of NATS.
Both of the originally supplied ignition key IDs have been NATS registered.
The security indicator is located on the instrument panel. The indicator blinks when the immobilizer system is
functioning.
Therefore, NATS warns outsiders that the vehicle is equipped with the anti-theft system.
lWhen 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.
lWhen servicing NATS (trouble diagnoses, system initialization and additional registration of other NATS
ignition key IDs), CONSULT-II hardware and CONSULT-II NATS software is necessary.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-
II operation manual, NATS.
Therefore, CONSULT-II NATS software (program card and operation manual) must be kept strictly con-
fidential to maintain the integrity of the anti-theft function.
lWhen servicing NATS (trouble diagnoses, system initialization and additional registration of other 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 registered into NATS.
lWhen failing to start the engine first time using the key of NATS, start as follows.
1. Leave the ignition key in "ON" position for approximately 5 seconds.
2. Turn ignition key to "OFF" or "LOCK" position and wait approximately 5 seconds.
3. Repeat step 1 and 2 again.
4. Restart the engine while keeping the key separate from any others on key-chain.

GI-4
PRECAUTIONS
General Precautions
EAS000FQ
lDo 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.
lBefore 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.
lWhen 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.
lBefore starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.
lIf the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
lTo prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
lDispose of drained oil or the solvent used for cleaning parts in
an appropriate manner.
lDo 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.
lClean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.
lReplace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.
lReplace inner and outer races of tapered roller bearings and needle bearings as a set.
lArrange the disassembled parts in accordance with their assembled locations and sequence.
lDo not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
lAfter disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.
SGI285
SGI231
SEF289H
SGI233

PRECAUTIONS
GI-5
lUse only the fluids and lubricants specified in this manual.
lUse approved bonding agent, sealants or their equivalents when required.
lUse tools and recommended special tools where specified for safe and efficient service repairs.
lWhen repairing the fuel, oil, water, vacuum or exhaust systems, check all affected lines for leaks.
lBefore servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WA RN ING:
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 All Mode 4´4 SystemEAS000GQ
Even if the 2WD mode is selected, the All mode 4´4 system occasionally changes from 2WD to 4WD auto-
matically depending on the driving conditions.
When spinning the front wheels by running the engine with the front wheels jacked up or mounted on the free
rollers / or a chassis dynamometer, be careful because the vehicle may suddenly move due to the driving
force from the rear wheels.
To avoid personal injury and vehicle damage, use one of the following methods when working with the front
wheels drive force and spinning freely.
lRemove the propeller shaft.
lUse free rollers / chassis dynamometer designed for 4WD vehicles.
Precautions for Three Way CatalystEAS000FR
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
lUse unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
lWhen checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
lDo 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 FuelEAS000FS
Use unleaded gasoline with an octane rating of at least 95 (RON).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
SGI234

GI-6
PRECAUTIONS
Precautions for Multiport Fuel Injection System or Engine Control System
EAS000FT
lBefore 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.
lBefore disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.
lBe careful not to jar components such as ECM and mass air
flow sensor.
Precautions for Turbocharger (If Equipped)EAS000FU
The turbocharger turbine revolves at extremely high speeds and
becomes very hot. Therefore, it is essential to maintain a clean sup-
ply of oil flowing through the turbocharger and to follow all required
maintenance instructions and operating procedures.
lAlways use the recommended oil. Follow the instructions for
proper time to change the oil and proper oil level.
lAvoid accelerating engine to a high rpm immediately after start-
ing.
lIf engine had been operating at high rpm for an extended period
of time, let it idle for a few minutes prior to shutting if off.
Precautions for HosesEAS000FV
HOSE REMOVAL AND INSTALLATION
lTo prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.
lTo reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
SGI787
SGI292
SMA019D
SMA020D

PRECAUTIONS
GI-7
HOSE CLAMPING
lIf 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.
lDiscard old clamps; replace with new ones.
lAfter installing plate clamps, apply force to them in the direction
of the arrow, tightening rubber hose equally all around.
Precautions for Engine OilsEAS000FW
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
lAvoid prolonged and repeated contact with oils, particularly used engine oils.
lWear protective clothing, including impervious gloves where practicable.
lDo not put oily rags in pockets.
lAvoid contaminating clothes, particularly underpants, with oil.
lHeavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.
lFirst aid treatment should be obtained immediately for open cuts and wounds.
lUse barrier creams, applying them before each work period, to help the removal of oil from the skin.
lWash 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.
lDo not use gasoline, kerosine, diesel fuel, gas oil, thinners or solvents for cleaning skin.
lIf skin disorders develop, obtain medical advice without delay.
lWhere practical, degrease components prior to handling.
lWhere 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.
SMA021D
SMA022D