2001 NISSAN X-TRAIL engine control

PG-22
GROUND
ENGINE CONTROL HARNESS/DIESEL ENGINE MODELS
CKWA0051E

HARNESS
PG-29
C
D
E
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G
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I
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L
MA
B
PG
HARNESS PFP:00011
Harness Layout EKS0032I
HOW TO READ HARNESS LAYOUTS
The following Harness Layouts use a map style grid to help locate
connectors on the drawings:
●Main Harness
●Engine Room Harness (Engine Compartment)
●Engine Control Harness
●Body Harness
●Body No.2 Harness
●Room Lamp Harness
●Door Harness
To use the grid reference
1. Find the desired connector number on the connector list.
2. Find the grid reference.
3. On the drawing, find the crossing of the grid reference letter column and number row.
4. Find the connector number in the crossing zone.
5. Follow the line (if used) to the connector.
CONNECTOR SYMBOL
Main symbols of connector (in Harness Layout) are indicated in the below.SEL252V
SKIA0404E

PG-46
HARNESS
ENGINE CONTROL HARNESS
QR25 Engine Models with A/T
TKIA0020E

PG-60
HARNESS
Wiring Diagram Codes (Cell Codes)
EKS0032J
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
1STSIG AT A/T 1st Signal
2NDSIG AT A/T 2nd Signal
3RDSIG AT A/T 3rd Signal
4THSIG AT A/T 4th Signal
4WD BRC 4WD Control system
A/C ATC Air Conditioner
ABS BRC ABS Control System
APPS EC Accelerator Pedal Position (APP) Sensor
APRSW EC Accelerator Pedal Released Position Sensor
AT/IND DI A/T Indicator
AUDIO AV Audio
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-up Lamp
BRK/SW EC Brake Switch
CAN EC,AT CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
CLOCK DI Clock
CKPS EC Crankshaft Position Sensor
CMPS EC Camshaft Position Sensor
COOL/F EC Cooling Fan Control
CRFPS EC Common Rail Fuel Pressure Sensor
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECM/PW EC ECM Power
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGRC/V EC EGR Volume Control Valve
ENGSS AT Engine Speed Signal
ETC1 EC Electric Throttle Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor
F/FOG LT Front Fog Lamp
FIAR EC Fuel Injector Adjustment resister
FRO2 EC Heated Oxygen Sensor 1 (Front)
FRO2/H EC Heated Oxygen Sensor 1 Heater (Front)
FTS EC Fuel Temperature Sensor
FTS AT A/T Fluid Temperature Sensor

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION
A
B
MA
MAINTENANCE
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
DESCRIPTION ............................................................ 4
Pre-delivery Inspection Items ................................... 4
GENERAL MAINTENANCE ....................................... 6
General Maintenance ............................................... 6
PERIODIC MAINTENANCE ....................................... 7
Periodic Maintenance ............................................... 7
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (QR20DE AND QR25DE PETROL
ENGINE) ............................................................... 7
CHASSIS AND BODY MAINTENANCE
(QR20DE AND QR25DE PETROL ENGINE) ....... 7
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD22DDTI DIESEL ENGINE) ................ 8
CHASSIS AND BODY MAINTENANCE
(YD22DDTI DIESEL ENGINE) .............................. 9
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 10
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (QR20DE AND QR25DE PETROL
ENGINE) .............................................................. 11
CHASSIS AND BODY MAINTENANCE
(QR20DE AND QR25DE PETROL ENGINE) ..... 12
ENGINE AND EMISSION CONTROL MAINTE-
NANCE (YD22DDTI DIESEL ENGINE) .............. 13
CHASSIS AND BODY MAINTENANCE
(YD22DDTI DIESEL ENGINE) ............................ 14
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 14
RECOMMENDED FLUIDS AND LUBRICANTS ...... 16
Fluids and Lubricants ............................................. 16
SAE Viscosity Number ........................................... 17
GASOLINE ENGINE ........................................... 17
DIESEL ENGINE ................................................. 17
Engine Coolant Mixture Ratio ................................ 18
ENGINE MAINTENANCE (QR20DE·QR25DE) ........ 19
Checking Drive Belts .............................................. 19
Tension Adjustment ................................................ 19Changing Engine Coolant ....................................... 19
DRAINING ENGINE COOLANT .......................... 19
REFILLING ENGINE COOLANT ......................... 20
FLUSHING COOLING SYSTEM ......................... 21
Checking Cooling System ...................................... 21
CHECKING COOLING SYSTEM HOSES ........... 21
CHECKING RADIATOR ...................................... 21
CHECKING RADIATOR CAP .............................. 21
CHECKING RADIATOR SYSTEM FOR LEAKS ... 22
Checking Fuel Lines ............................................ ... 22
Changing Air Cleaner Filter .................................... 22
VISCOUS PAPER TYPE ..................................... 22
DRY PAPER TYPE .............................................. 22
Changing Engine Oil ............................................ ... 23
Changing Oil Filter .................................................. 23
Checking and Changing Spark Plugs ..................... 24
REMOVAL ........................................................... 24
INSPECTION AFTER REMOVAL ....................... 24
INSTALLATION ................................................... 25
Checking EVAP Vapor Lines .................................. 25
ENGINE MAINTENANCE (YD22DDTI) .................... 26
Checking Drive Belts .............................................. 26
Tension Adjustment ............................................. ... 26
AIR CONDITIONER COMPRESSOR BELT ........ 27
ALTERNATOR AND WATER PUMP BELT .......... 27
Changing Engine Coolant ....................................... 27
DRAINING ENGINE COOLANT .......................... 27
REFILLING ENGINE COOLANT ......................... 28
FLUSHING COOLING SYSTEM ......................... 29
Checking Cooling System ...................................... 29
CHECKING COOLING SYSTEM HOSES ........... 29
CHECKING RADIATOR ...................................... 29
CHECKING RADIATOR CAP .............................. 30
CHECKING RADIATOR SYSTEM FOR LEAKS ... 30
Checking Fuel Lines ............................................ ... 30
Changing Fuel Filter ............................................... 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
Changing Air Cleaner Filter .................................... 32
VISCOUS PAPER TYPE ..................................... 32

MA-4
DESCRIPTION
DESCRIPTION
PFP:00000
Pre-delivery Inspection ItemsELS000AK
Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard to the conditions in each
country.
Perform applicable items on each model. Consult text of this section for specifications.
UNDER HOOD — engine off
Radiator coolant level and coolant hose connections for leaks
Battery fluid level, specific gravity and conditions of battery terminals
Drive belts tension
Fuel filter for water or dusts (Diesel only), and fuel lines and connections for leaks
Engine oil level and oil leaks
Clutch and brake reservoir fluid level and fluid lines for leaks
Windshield and rear window washer and headlamp cleaner reservoir fluid level
Power steering reservoir fluid level and hose connections for leaks
ON INSIDE AND OUTSIDE
Remove front spring/strut spacer (If applicable)
Operation of all instruments, gauges, lights and accessories
Operation of horn(s), wiper and washer
Steering lock for operation
Check air conditioner for gas leaks
Front and rear seats, and seat belts for operation
All moldings, trims and fittings for fit and alignment
All windows for operation and alignment
Hood, trunk lid, door panels for fit and alignment
Latches, keys and locks for operation
Weatherstrips for adhesion and fit
Headlamp aiming
Tighten wheel nuts (Inc. inner nuts if applicable)
Tire pressure (Inc. spare tire)
Check front wheels for toe-in
Install clock/voltmeter/room lamp fuse (If applicable)
Install deodorizing filter to air conditioner (If applicable)
Remove wiper blade protectors (If applicable)
UNDER BODY
Manual transmission/transaxle, transfer and differential gear oil level
Brake and fuel lines and oil/fluid reservoirs for leaks
Tighten bolts and nuts of steering linkage and gear box, suspension, propeller shafts and drive shafts
Tighten rear body bolts and nuts (Models with wooden bed only)
ROAD TEST
Clutch operation
Parking brake operation
Service brake operation
Automatic transmission/transaxle shift timing and kickdown
Steering control and returnability
Engine performance

PERIODIC MAINTENANCE
MA-7
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MA
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PERIODIC MAINTENANCEPFP:00026
Periodic MaintenanceELS000AM
The following tables show the normal maintenance schedule. Depending upon weather and atmospheric con-
ditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent mainte-
nance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
ENGINE AND EMISSION CONTROL MAINTENANCE (QR20DE AND QR25DE PETROL ENGINE)
(Annual Mileage <30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary,R = Replace,.
NOTE:
● Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
●(1)Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
●(2) Replace the drive belts if found damaged or if the auto belt tensioner reading reaches the maximum limit.
●(3) First replace at 90,000 Km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform "I"
(Checking the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
●(4) Fuel filter is maintenance-free. For service procedures, refer to FL section.
●(5) Perform only according to "Maintenance Under Severe Driving conditions" for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
CHASSIS AND BODY MAINTENANCE (QR20DE AND QR25DE PETROL ENGINE)
(Annual Mileage <30,000 Km/year)
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform on a kilometer basis, but on an annual
basis when driving less than 15,000 km (9,000
miles) per yearkm x
1,000
(Miles x
1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96
Engine compartment and under vehicle
Intake and exhaust valve clearanceSee
NOTE (1)EM-53
Drive beltsSee
NOTE (2)MA-19
Engine oil (Use recommended oil.)R RRRRRRRMA-23
Engine oil filter (Use NISSAN genuine part or
equivalent)R RRRRRRRMA-23
Engine anti-freeze coolant (Use genuine NISSAN
Anti-Freeze Coolant (L2N) or equivalent.)See
NOTE (3)IRIMA-19
Cooling system II IIIIIIMA-21
Fuel lines I I I IMA-22
Air cleaner filterRRMA-22
Fuel filter (In-tank type)See
NOTE (4)FL-4
Spark plugs R R R RMA-24
EVAP vapor lines (With carbon canister) I I I IEC-425or EC-
111 2
Heated oxygen sensor 1 See
NOTE (5)EC-1320

MA-8
PERIODIC MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary,R = Replace, L = Lubricate.
NOTE:
●(1) Inspect once per year.
● Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
ENGINE AND EMISSION CONTROL MAINTENANCE (YD22DDTI DIESEL ENGINE)
(Annual Mileage <30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary,R = Replace, D = Check filter and drain water MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform either at number of kilometers
(miles) or months, whichever comes
first.km x 1,000
(Miles x 1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96
Underhood and under vehicle
Headlamp aiming I I I I I I I ILT- 6
Brake & clutch, systems and fluid (For
level & leaks)IIIIIIIIMA-35,MA-
39
Brake fluidRRRRMA-39
Brake booster vacuum hoses, connec-
tions & check valveIIIIBR-19
Power steering fluid & lines (For level
& leaks)IIIIIIIIMA-40
Manual transaxle gear oil (For level &
leaks)IIIIIIIIMA-35
Automatic transaxle fluid (For level &
leaks)IIIIIIIIMA-36
Transfer gear oil (For level & leaks) I I I I I I I IMA-37
Differential gear oil (For level & leaks
or replace)IIIRIIIRMA-38,MA-
38
Steering gear & linkage, axle & sus-
pension parts, propeller shaft, front
drive shafts & exhaust systemIIIIIIIIMA-40,MA-
41 ,MA-37
,MA-41,
"Drive
Shaft"
Wheel alignment (If necessary, rotate
& balance wheels)IIIIIIIIFSU-6,MA-
38
Brake pads, rotors & other brake com-
ponentsIIIIIIIIMA-40,MA-
40 ,MA-39
Foot brake, parking brake & clutch (For
free play, stroke & operation)IIIIIIIIBR-6PB-3,
CL-5
Ventilation air filterRRRRAT C - 1 2 1
Body corrosion See NOTE (1)MA-42
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence page Perform either at number of kilometers (miles) or
months, whichever comes first.km x 1,000
(Miles x
1,000)
Months20
(12)
1240
(24)
2460
(36)
3680
(48)
48100
(60)
60120
(72)
72
Engine compartment and under vehicle
Intake & exhaust valve clearanceSee NOTE
(1)EM-163
Drive belts I I I I I IMA-26
Engine oil (Use API CD, CE, CF, CF-4 oil.)See NOTE
(2)RRRRRRMA-32