2001 NISSAN X-TRAIL ignition

FL-14
[YD22DDTi]
FUEL SYSTEM
FUEL SYSTEM
PFP:17503
Checking Fuel LinesEBS00BKH
Inspect fuel lines, filler cap and tank for improper attachment, leaks,
cracks, damage, loose connections, chafing or deterioration.
If necessary, repair or replace damaged parts.
General PrecautionsEBS00BKI
WARNING:
When replacing fuel line parts, be sure to observe the following.
●Put a “CAUTION: INFLAMMABLE” sign in workshop.
●Be sure to work in a well-ventilated area and furnish workshop with a CO2 fire extinguisher.
●Do not smoke while servicing fuel system. Keep open flames and spark away from work area.
CAUTION:
●Before removing fuel line parts, carry out the following procedures:
–a) Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container
in safe area.
–b) Disconnect battery ground cable.
●Always replace O-ring and clamps with new ones.
●Do not kink or twist tubes when they are being installed.
●Do not tighten hose clamps excessively to avoid damaging hoses.
●After installing tubes, make sure there is no fuel leakage at connections in the following steps.
–a) Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then
check for fuel leaks at connections.
–b) Start the engine and rev it up and check for fuel leaks at connections.
SMA803A

FUEL FILTER
FL-15
[YD22DDTi]
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FUEL FILTERPFP:16400
Removal and InstallationEBS00BLA
REMOVAL
1. Remove air duct and upper air cleaner case.
2. Remove fuel filter protector.
3. Disconnect fuel hoses at fuel filter bracket.
CAUTION:
Plug the pipe to prevent fuel from draining.
4. Remove fuel filter with bracket.
CAUTION:
Do not splash fuel during removal. If fuel is splashed,
immediately wipe it off.
5. Using band-type filter wrench (commercial service tool), remove
fuel filter.
6. Turn fuel filter upside down to drain fuel.
7. Remove drain plug from fuel filter.
INSTALLATION
Install in reverse order of removal, paying attention to following:
●Replace O-ring on drain plug with new one.
●Screw the fuel filter by hand until packing contacts sealing surface of bracket. Then tighten it by turning
approximately 2/3 turn.
●After installation, bleed air from fuel path. Refer to FL-16, "Air Bleeding" .
INSPECTION AFTER INSTALLATION
Make sure there is no fuel leakage at connections in the following steps.
1. Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then check for
fuel leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections.
SBIA0134E
SBIA0135E
SBIA0136E
Drain plug
: 3.9 - 5.9 N·m (0.4 - 0.6 kg-m, 35 - 52 in-lb)

FL-20
[YD22DDTi]
FUEL LEVEL SENSOR UNIT
●Visually confirm that the two retainer tabs are connected to the connector.
●Pull the tube and the connector to make sure they are securely connected.
●Install fuel level sensor unit with mating mark (triangular protrusion) facing between two carved lines on
fuel tank. (Figure shows left side of fuel tank.)
NOTE:
On right side of fuel tank, there are three carved lines on fuel tank. Set mating mark between two outer
carved lines.
●Install the inspection hole cover with the front mark (arrow)
facing front of the vehicle (Both for RH and LH).
INSPECTION AFTER INSTALLATION
Make sure there is no fuel leakage at connections in the following steps.
1. Apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped). Then check for fuel
leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections.
SBIA0144E

FUEL TANK
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1. Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then check for
fuel leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections.

PRECAUTIONS
AT-5
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS004Q0
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.
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 harness connec-
tors.
Precautions for On Board Diagnostic (EURO-OBD) System of A/T and Engine —
Euro-OBD —
ECS004Q1
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
●Be sure to turn the ignition switch “OFF” and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.
●Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
●Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
●Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
●Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Precautions for Trouble DiagnosisECS004VN
CAN SYSTEM
●Do not apply voltage of 7.0V or higher to the measurement terminals.
●Use the tester with its open terminal voltage being 7.0V or less.
Precautions for Harness RepairECS004VO
CAN SYSTEM
●Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in)]
PKIA0306E

AT-6
PRECAUTIONS
●Do not perform bypass wire connections for the repair
parts.(The spliced wire will become separated and the charac-
teristics of twisted line will be lost.)
PrecautionsECS004Q2
●Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch OFF and disconnect negative
battery terminal. Failure to do so may damage the TCM.
Because battery voltage is applied to TCM even if ignition
switch is turned off.
●When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors.
●Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not. (See page AT- 1 0 6 , "
TCM Terminals and Reference
Va l u e".)
PKIA0307E
SEF289H
AAT470A
MEF040DA

PRECAUTIONS
AT-7
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●After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
The DTC should not be displayed in the “DTC CONFIRMA-
TION 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-13, "
A/T FLUID" .
Service Notice or PrecautionsECS004Q3
FA I L - S A F 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 5 3 , "
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)" (EXCEPT FOR
EURO-OBD) or AT-51, "
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-262, "
Work Flow" (EXCEPT FOR Euro-OBD) or AT- 6 0 , "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

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-39
[EURO-OBD]
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HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as
described following.
●If the battery terminal is disconnected, the diagnostic trouble code will be lost within 24 hours.
●When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to EURO-OBD. For details, refer to EC-45, "
Emission-related Diagnostic Information" (QR25DE) or
EC-778, "
Emission-related Diagnostic Information" (QR20DE).
●Diagnostic trouble codes (DTC)
●1st trip diagnostic trouble codes (1st trip DTC)
●Freeze frame data
●1st trip freeze frame data
●System readiness test (SRT) codes
●Test values
HOW TO ERASE DTC (WITH CONSULT-II)
●If a DTC is displayed for both ECM and TCM, it needs to be erased for both ECM and TCM.
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
5 seconds and then turn it “ON” (engine stopped) again.
2. Turn CONSULT-II “ON” and touch “A/T”.
3. Touch “SELF DIAGNOSIS”.
4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
5. Touch “ENGINE”.
6. Touch “SELF DIAGNOSIS”.