2003 NISSAN X-TRAIL weight

GI-4
PRECAUTIONS

General PrecautionsEAS000FQ

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

HOW TO USE THIS MANUAL
GI-19
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Detectable Lines and Non-Detectable Lines
In some wiring diagrams, two kinds of lines, representing wires, with different weight are used.

A line with regular weight (wider line) represents a “detectable
line for DTC (Diagnostic Trouble Code)”. A “detectable line for
DTC” is a circuit in which ECM can detect its malfunctions with
the on board diagnostic system.

A line with less weight (thinner line) represents a “non-detect-
able line for DTC”. A “non-detectable line for DTC” is a circuit in
which ECM cannot detect its malfunctions with the on board
diagnostic system.
SGI862-B

OIL PUMP
LU-15
[QR]
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Regulator Valve Clearance
(Clearance) = (Valve hole diameter “D1”) – (Regulator valve outer
diameter “D2”)

If out of the standard, replace oil pump assembly.
CAUTION:

Coat regulator valve with new engine oil.

Make sure that it falls smoothly into valve hole by its own
weight.
ASSEMBLY
Note the following, and assemble in the reverse order of disassembly.

Install inner rotor and outer rotor with the punched marks on the
oil pump cover side.Standard : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
KBIA0043E
PBIC0255E

OIL PUMP
LU-31
[YD22DDTi]
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Measure the clearance with the feeler gauge and the straight-
edge.
Side clearance between inner rotor and oil pump housing (posi-
tion 3)
Side clearance between outer rotor and oil pump housing (posi-
tion 4)

Calculate the clearance between inner rotor and oil pump housing as follows.
–Measure the outer diameter of protruded portion of inner rotor
(position 5).
–Measure the inner diameter of oil pump housing with the inside
micrometer (position 6).
(Clearance) = (Inner diameter of oil pump housing) – (Outer
diameter of inner rotor)
 If measured/calculated values are out of the standard, replace
oil pump assembly.
Regulator Valve Clearance
(Clearance) = (Valve hole diameter) – (Regulator valve outer diame-
ter)

If out of the standard, replace oil pump assembly.
CAUTION:

Coat regulator valve with new engine oil.

Make sure that it falls smoothly into valve hole by its own
weight.Standard : 0.050 - 0.090 mm (0.0020 - 0.0035 in)
Standard : 0.030 - 0.190 mm (0.0012 - 0.0075 in)
JLC356B
PBIC0253E
Standard : 0.045 - 0.091mm (0.0018 - 0.0036 in)
SBIA0124E
Standard : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
PBIC2382E

EC-86
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
5
5FL-11
Fuel piping 5 5 5 5 5 5FL-3, EM-
32
Vapor lock—
Valve deposit
5 555 55 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—
Air Air duct
55555 5EM-15
Air cleaner
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555
Electric throttle control actuator
EM-17
Air leakage from intake manifold/
Collector/Gasket
Cranking Battery
111111 11SC-3
Alternator circuitSC-12
Starter circuit 3SC-21
Signal plate/Flywheel/Drive plate 6EM-82
PNP switch 4MT-13 or
AT- 1 0 0
Engine Cylinder head
55555 55 5EM-67
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-82
Piston
Piston ring
Connecting rod
Bearing
Crankshaft

EC-534
[QR (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
5
5FL-11
Fuel piping 5 5 5 5 5 5FL-3, EM-
32
Vapor lock—
Valve deposit
5 555 55 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—
Air Air duct
55555 5EM-15
Air cleaner
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555
Electric throttle control actuator
EM-17
Air leakage from intake manifold/
Collector/Gasket
Cranking Battery
111111 11SC-3
Alternator circuitSC-12
Starter circuit 3SC-21
Signal plate/Flywheel/Drive plate 6EM-82
PNP switch 4MT-13 or
AT- 4 0 8
Engine Cylinder head
55555 55 5EM-67
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-82
Piston
Piston ring
Connecting rod
Bearing
Crankshaft

AT-10
PRECAUTIONS


After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
The DTC should not be displayed in the “DTC Confirmation
Procedure” if the repair is completed.

Before proceeding with disassembly, thoroughly clean the out-
side of the transaxle. It is important to prevent the internal parts
from becoming contaminated by dirt or other foreign matter.

Disassembly should be done in a clean work area.

Use lint-free cloth or towels for wiping parts clean. Common
shop rags can leave fibers that could interfere with the operation
of the transaxle.

Place disassembled parts in order for easier and proper assembly.

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

Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.

It is very important to perform functional tests whenever they are indicated.

The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.

Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

After overhaul, refill the transaxle with new ATF.

When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to “Changing A/T Fluid”, AT- 1 6 , "
A/T FLUID" .
Service Notice or PrecautionsECS004Q3
FAIL -SAF E
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of “1”, “2” or “D”. The cus-
tomer may complain of sluggish or poor acceleration.
When the ignition key is turned “ON” following Fail-Safe operation, O/D OFF indicator lamp blinks for about 8
seconds. Refer to AT- 2 4 6 , "
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)" (EXCEPT FOR
EURO-OBD) or AT- 5 2 , "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" (EURO-OBD).
The blinking of the O/D OFF indicator lamp for about 8 seconds will appear only once and be cleared. The
customer may resume normal driving conditions.
Always follow the “WORK FLOW”, refer to AT- 2 5 5 , "
Work Flow" (EXCEPT FOR Euro-OBD) or AT- 6 1 , "Work
Flow" (Euro-OBD).
The SELF-DIAGNOSIS results will be as follows:

The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.

During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:

External leaks in the hub weld area.

Converter hub is scored or damaged.

Converter pilot is broken, damaged or fits poorly into crankshaft.

Steel particles are found after flushing the cooler and cooler lines.

Pump is damaged or steel particles are found in the converter.

Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
SAT652J

DTC P0731 A/T 1ST GEAR FUNCTION
AT-129
[EURO-OBD]
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2. CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT- 4 0 4 , "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve A
–Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT- 4 4 8 , "
Control Valve Assembly" .
2. Check to ensure that:

Valve, sleeve and plug slide along valve bore under their own weight.

Valve, sleeve and plug are free from burrs, dents and scratches.

Control valve springs are free from damage, deformation and fatigue.

Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve assembly.
4. CHECK DTC
Perform AT- 1 2 5 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Check control valve again.Repair or replace control valve assembly.
SCIA3595E