2003 NISSAN X-TRAIL FL fuel system

MODEL T30 SERIES
2001 NISSAN EUROPE N.V.
All rights reserved. No part of this Electronic Service Manual may be reproduced or stored in a retrieval system, or transmitted in any
form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Nissan
Europe N.V., Paris, France.
A GENERAL INFORMATION
B ENGINE
C TRANSMISSION/
TRANSAXLE
D DRIVELINE/AXLE
E SUSPENSION
F BRAKES
G STEERING
H RESTRAINTS
I BODY
J AIR CONDITIONER
K ELECTRICAL
L MAINTENANCE
M INDEXGI General Information
EM Engine Mechanical
LU Engine Lubrication System
CO Engine Cooling System
EC Engine Control System
FL Fuel System
EX Exhaust System
ACC Accelerator Control System
CL Clutch
MT Manual Transaxle
AT Automatic Transaxle
TF Transfer
PR Propeller Shaft
RFD Rear Final Drive
FAX Front Axle
RAX Rear Axle
FSU Front Suspension
RSU Rear Suspension
WT Road Wheels & Tires
BR Brake System
PB Parking Brake System
BRC Brake Control System
PS Power Steering System
SB Seat Belts
SRS Supplemental Restraint System (SRS)
BL Body, Lock & Security System
GW Glasses, Window System & Mirrors
RF Roof
EI Exterior & Interior
IP Instrument Panel
SE Seat
ATC Automatic Air Conditioner
MTC Manual AIr Conditioner
SC Starting & Charging System
LT Lighting System
DI Driver Information System
WW Wiper, Washer & Horn
BCS Body Control System
LAN LAN System
AV Audio, Visual & Telephone System
PG Power Supply, Ground & Circuit Elements
MA Maintenance
IDX Alphabetical Index
QUICK REFERENCE INDEX
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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.
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 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:
lBe 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.
lBe 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.)
lBe 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.
lBe 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.
lBe 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
lDo not apply voltage of 7.0V or higher to the measurement terminals.
lUse the tester with its open terminal voltage being 7.0V or less.
Precautions For Harness RepairECS004VO
CAN SYSTEM
lSolder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in)]
PKIA0306E

AT-30
OVERALL SYSTEM
At Low Fluid Temperature
lFluid viscosity and frictional characteristics of the clutch facing change with fluid temperature. Clutch
engaging or band-contacting pressure is compensated for, according to fluid temperature, to stabilize
shifting quality.
lThe line pressure is reduced below 60°C(140°F) to prevent
shifting shock due to low viscosity of automatic transmission
fluid when temperature is low.
lLine pressure is increased to a maximum irrespective of the
throttle opening when fluid temperature drops to-10°C(14°F).
This pressure rise is adopted to prevent a delay in clutch and
brake operation due to extreme drop of fluid viscosity at low
temperature.
SHIFT CONTROL
The shift is regulated entirely by electronic control to accommodate vehicle speed and varying engine opera-
tions. This is accomplished by electrical signals transmitted by the revolution sensor and throttle position sen-
sor. This results in improved acceleration performance and fuel economy.
Control of Shift Solenoid Valves A and B
The TCM activates shift solenoid valves A and B according to sig-
nals from the throttle position sensor and revolution sensor to select
the optimum gear position on the basis of the shift schedule memo-
rizedintheTCM.
The shift solenoid valve performs simple ON-OFF operation. When
set to “ON”, the drain circuit closes and pilot pressure is applied to
the shift valve.
Relation Between Shift Solenoid Valves A and B and Gear Positions
SAT006J
SAT007J
SAT008J
Shift solenoid valveGear position
D1,21,11D2,22,12D3D4(OD) N-P
A ON (Closed) OFF (Open) OFF (Open) ON (Closed) ON (Closed)
B ON (Closed) ON (Closed) OFF (Open) OFF (Open) ON (Closed)

AT-38
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
A sample of CONSULT-II display for DTC is shown in the following
page. DTC or 1st trip DTC of a malfunction is displayed in SELF
DIAGNOSIS mode for “ENGINE” with CONSULT-II. Time data indi-
cates how many times the vehicle was driven after the last detection
of a DTC.
If the DTC is being detected currently, the time data will be “0”.
If a 1st trip DTC is stored in the ECM, the time data will be “1t”.
Freeze Frame Data and 1st Trip Freeze Frame Data
The ECM has a memory function, which stores the driving condition such as fuel system status, calculated
load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle
speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data,
and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II
or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
detail, refer to " ", “CONSULT-II”.
Only one set of freeze frame data (either 1st trip freeze frame data of freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM.
The ECM has the following priorities to update the data.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM mem-
oryiserased.
SAT014K
SAT015K
SAT016K
Priority Items
1 Freeze frame data Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

BL-2
INSTALLATION .................................................... 55
Disassembly and Assembly .................................... 55
DISASSEMBLY ................................................... 55
ASSEMBLY ......................................................... 56
REAR DOOR LOCK .................................................. 57
Component Parts Location ..................................... 57
Inspection and Adjustment ..................................... 57
OUT SIDE HANDLE ROD ADJUSTMENT .......... 57
Removal and Installation ........................................ 57
REMOVAL ........................................................... 57
INSTALLATION .................................................... 58
Disassembly and Assembly .................................... 58
DISASSEMBLY ................................................... 58
ASSEMBLY ......................................................... 59
BACK DOOR ............................................................. 60
Fitting Adjustment ................................................... 60
VERTICAL/LATERAL CLEARANCE ADJUST-
MENT .................................................................. 60
Back Door Assembly .............................................. 61
REMOVAL AND INSTALLATION ......................... 61
INSPECTION ....................................................... 61
Removal and Installation of Back Door Handle ...... 61
Removal and Installation of Back Door Lock and
Actuator .................................................................. 62
Removal and Installation of Back Door Weatherstrip... 62
FUEL FILLER LID OPENER ..................................... 64
Component Parts Location ..................................... 64
THEFT WARNING SYSTEM ..................................... 65
Wiring Diagram — THEFT —/PRI-WIRE ................ 65
LHD MODELS ..................................................... 66
RHD MODELS ..................................................... 68NATS (NISSAN ANTI-THEFT SYSTEM) ...................70
Component Parts and Harness Connector Location... 70
System Description .................................................70
System Composition ...............................................71
Wiring Diagram — NATS — ....................................72
GASOLINE ENGINE MODELS ............................72
DIESEL ENGINE MODELS .................................73
CONSULT-II ............................................................74
CONSULT-II INSPECTION PROCEDURE ..........74
CONSULT-II DIAGNOSTIC TEST MODE FUNC-
TION ....................................................................74
HOW TO READ SELF-DIAGNOSTIC RESULTS...75
NATS SELF-DIAGNOSTIC RESULTS ITEM
CHART .................................................................75
Work Flow ...............................................................77
Trouble Diagnoses ..................................................78
SYMPTOM MATRIX CHART 1 ............................78
SYMPTOM MATRIX CHART 2 ............................79
DIAGNOSTIC SYSTEM DIAGRAM .....................79
Diagnostic Procedure 1 ...........................................80
Diagnostic Procedure 2 ...........................................80
Diagnostic Procedure 3 ...........................................82
Diagnostic Procedure 4 ...........................................83
Diagnostic Procedure 5 ...........................................85
Diagnostic Procedure 6 ...........................................85
Diagnostic Procedure 7 ...........................................86
Diagnostic Procedure 8 ...........................................88
How to Replace NATS IMMU ..................................89

GENERAL INFORMATION
BRC-57
[ESP/TCS/ABS]
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lWhen starting the engine, or just after starting the vehicle, the brake pedal may vibrate or the
motor operating noise may be heard from the engine compartment. This is a normal status of the
operation check.
lThe stopping distance may be longer than that of vehicles without ABS when the vehicle drives on
rough, gravel, or snowy (fresh deep snow) road.
TCS FunctionsEFS0019V
1. With the wheel speed sensor signals from 4 wheels, the ESP/TCS/ABS control unit detects a wheel spin.
If a wheel spins, the control unit controls brake fluid pressure to the spinning wheel, and cuts the fuel to
the engine. It also closes the throttle valve to reduce the engine torque. Furthermore, throttle position is
controlled to the appropriate engine torque.
2. If a wheel spins, the TCS system works same as LSD (Limited Slip Differential) function applying brake
fluid pressure to the spinning wheel.
3. During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
CAUTION:
lDuring TCS operation, the body and the brake pedal lightly vibrate and the mechanical noise may
be heard. This is a normal condition.
lDepending on road circumstances, the driver may have a sluggish feel. This is not abnormal,
because the optimum traction has the highest priority by TCS operation.
lWhen the vehicle is passing through a road where the surface friction coefficient varies, down-
shifting or depressing the accelerator pedal fully may activate TCS temporarily.
ESP FunctionsEFS0019W
1. The Electronic Stability Program is called the ESP for short.
The ESP is indicated as the VDC (the Vehicle Dynamics Control) on the CONSULT-II screen.
2. In addition to the ABS/TCS function, ESP detects the driver's steering operation amount and brake opera-
tion amount from the steering angle sensor and pressure sensor. Using the information from the yaw rate/
side G sensor and wheel speed sensors, ESP judges the driving condition (conditions of understeer and
oversteer) to improve the stability by controlling the brake on 4 wheels and engine output.
3. During ESP operation, the SLIP indicator lamp flashes to inform the driver of the operation.
CAUTION:
lDuring ESP operation, the body and the brake pedal lightly vibrate and their mechanical noise
may be heard. This is a normal condition.
lIf the vehicle is rotated on a turn table, or rolled and rocked on a ship, the ABS warning lamp,
ESP OFF indicator lamp, and SLIP indicator lamp may turn ON. In this case, start the engine on a
normal road again. If the ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp
turn OFF after the restart, it is normal.
lWhen driving in a steep slope such as a bank, the ABS warning lamp, ESP OFF indicator lamp,
and SLIP indicator lamp may turn ON. In this case, start the engine on a normal road again. If the
ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp turn OFF after the restart, it
is normal.

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
A
B
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DRIVER INFORMATION SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
COMBINATION METERS (LHD MODELS) ................ 4
System Description .................................................. 4
UNIFIED CONTROL METER ................................ 4
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ........................................................ 4
POWER SUPPLY AND GROUND CIRCUIT ........ 4
WATER TEMPERATURE GAUGE ........................ 4
TACHOMETER ..................................................... 5
FUEL GAUGE ....................................................... 5
SPEEDOMETER ................................................... 5
Component Parts and Harness Connector Location..... 5
Combination Meter ................................................... 6
CHECK .................................................................. 6
Schematic ................................................................ 7
Wiring Diagram — METER — .................................. 8
Meter/Gauge Operation and Odo/Trip Meter Seg-
ment Check in Diagnosis Mode ............................. 10
DIAGNOSIS FUNCTION ..................................... 10
HOW TO ALTERNATE DIAGNOSIS MODE ....... 10
Trouble Diagnoses ................................................. 10
PRELIMINARY CHECK ...................................... 10
SYMPTOM CHART ..............................................11
Power Supply and Ground Circuit Check ............... 12
Inspection/Engine Speed Signal ............................ 12
Inspection/Water Temperature Gauge /Gasoline
Engine Models ....................................................... 13
Inspection/Water Temperature Gauge (Diesel
Engine Models) ...................................................... 13
Inspection/Vehicle speed signal ............................. 14
Inspection/Fuel Level Sensor Unit ......................... 15
FUEL LEVEL SENSOR UNIT ............................. 15
LOW-FUEL WARNING LAMP ............................. 15
The Fuel Gauge Pointer Fluctuates·Indicator
Wrong Value·or Varies. ........................................... 17
The Fuel Gauge Does Not Move to F-position. ...... 18The Fuel Gauge Does Not Work. ........................... 18
Low Fuel Warning Lamp Illuminate or Not Illuminate... 19
Electrical Components Inspection .......................... 19
FUEL LEVEL SENSOR UNIT CHECK / GASO-
LINE ENGINE MODELS ..................................... 19
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS EXCEPT FOR NORTHERN
EUROPE ............................................................. 19
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS FOR NORTHERN EUROPE... 20
THERMAL TRANSMITTER CHECK ................... 20
Removal and Installation for Combination Meter .... 21
Disassembly and Assembly for Combination Meter... 21
COMBINATION METERS (RHD MODELS) .............. 22
System Description ................................................. 22
UNIFIED CONTROL METER .............................. 22
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ....................................................... 22
POWER SUPPLY AND GROUND CIRCUIT ....... 22
WATER TEMPERATURE GAUGE ...................... 22
TACHOMETER .................................................... 23
FUEL GAUGE ..................................................... 23
SPEEDOMETER ................................................. 23
Component Parts and Harness Connector Location... 23
Combination Meter ................................................. 24
CHECK ................................................................ 24
Schematic ............................................................... 25
Wiring Diagram — METER — ................................ 26
Meter/Gauge Operation and Odo/Trip Meter Seg-
ment Check in Diagnosis Mode .............................. 28
DIAGNOSIS FUNCTION ..................................... 28
HOW TO ALTERNATE DIAGNOSIS MODE ....... 28
Trouble Diagnoses ................................................. 28
PRELIMINARY CHECK ....................................... 28
SYMPTOM CHART ............................................. 29
Power Supply and Ground Circuit Check ............... 30
Inspection/Engine Speed Signal ............................. 30
Inspection/Water Temperature Gauge /Gasoline
Engine Models ........................................................ 31
Inspection/Water Temperature Gauge (Diesel

DI-2
Engine Models) ....................................................... 31
Inspection/Vehicle speed signal ............................. 32
Inspection/Fuel Level Sensor Unit .......................... 33
FUEL LEVEL SENSOR UNIT .............................. 33
LOW-FUEL WARNING LAMP ............................. 33
The Fuel Gauge Pointer Fluctuates·Indicator
Wrong Value·or Varies. ........................................... 35
The Fuel Gauge Does Not Move to F-position. ...... 36
The Fuel Gauge Does Not Work. ........................... 36
Low Fuel Warning Lamp Illuminate or Not Illuminate... 37
Electrical Components Inspection .......................... 37
FUEL LEVEL SENSOR UNIT CHECK / GASO-
LINE ENGINE MODELS ...................................... 37
FUEL LEVEL SENSOR UNIT CHECK / DIESEL
ENGINE MODELS ............................................... 37
THERMAL TRANSMITTER CHECK ................... 38
Removal and Installation for Combination Meter .... 38
Disassembly and Assembly for Combination Meter... 38
WARNING LAMPS .................................................... 39
Schematic ............................................................... 39
Wiring Diagram — WARN —/ LHD Models ............ 40Wiring Diagram — WARN — / RHD Models ...........45
Electrical Components Inspection ...........................50
FUEL WARNING LAMP OPERATION CHECK ... 50
OIL PRESSURE SWITCH CHECK ......................50
DIODE CHECK ....................................................50
A/T INDICATOR .........................................................51
Wiring Diagram — AT/IND — .................................51
WARNING CHIME .....................................................52
System Description .................................................52
POWER SUPPLY AND GROUND CIRCUIT .......52
IGNITION KEY WARNING CHIME ......................52
LIGHT WARNING CHIME ...................................52
Component Parts and Harness Connector Location... 53
Wiring Diagram — CHIME — .................................54
Symptom Chart .......................................................56
Power Supply and Ground Circuit Check ...............56
Lighting Switch Input Signal Check .........................57
Key Switch Insert Signal Check ..............................57
Door Unlock Sensor Check .....................................58
Front Door Switch (driver side) Check ....................59
CLOCK ......................................................................60
Wiring Diagram — CLOCK — .................................60