2001 NISSAN X-TRAIL Obd

HARNESS CONNECTOR
PG-69
C
D
E
F
G
H
I
J
L
MA
B
PG
HARNESS CONNECTOR (SLIDE-LOCKING TYPE)
●A new style slide-locking type connector is used on certain systems and components, especially those
related to OBD.
●The slide-locking type connectors help prevent incomplete locking and accidental looseness or discon-
nection.
●The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustra-
tion below.
CAUTION:
●Do not pull the harness or wires when disconnecting the connector.
●Be careful not to damage the connector support bracket when disconnecting the connector.
[Example]
SEL769V

PERIODIC MAINTENANCE
MA-7
C
D
E
F
G
H
I
J
K
MA
B
MA
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-10
PERIODIC MAINTENANCE
NOTE:
●(1) Inspect once per year.
● Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving
Conditions”.
MAINTENANCE UNDER SEVERE DRIVING CONDITIONS
(Annual Mileage <30,000 Km/year)
The maintenance intervals shown on the preceding pages are for normal operating conditions. If the vehicle is
mainly operated under severe driving conditions as shown below, more frequent maintenance must be per-
formed on the following items as shown in the table.
Severe driving conditions
A — Driving in dusty conditions
B — Repeatedly driving short distances
C — Towing a trailer or caravan
D — Extensive idling
E — Driving in extremely adverse weather conditions or in areas where ambient temperatures are either
extremely low or extremely high
F — Driving in high humidity or mountainous areas
G — Driving in areas using salt or other corrosive materials
H — Driving on rough and/or muddy roads or in the desert
I — Driving with frequent use of braking or in mountainous areas
J — Frequent off road use or driving in water
K —Sustained high speed driving
L — For models without Euro-OBD system
Maintenance operation: Check = Check and correct or replace as necessary. Brake pads, rotors & other brake compo-
nentsIIIIIIMA-40
,MA-39
,MA-40
Foot brake, parking brake & clutch (For free
play, stroke & operation)IIIIIIBR-6,CL-5
Ventilation air filterRRRRRRAT C - 1 2 1
Body corrosion See NOTE (1)MA-42
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)
Months20
(12)
1240
(24)
2460
(36)
3680
(48)
48100
(60)
60120
(72)
72
Driving conditionMaintenance itemMainte-
nance
opera-
tionMaintenance intervalRefer-
ence
page
A...........Air cleaner filterPetrol models ReplaceEvery 30,000 km
(18,000 miles) or 24
monthsMA-22
Diesel models ReplaceEvery 30,000 km
(18,000 miles) or 18
monthsMA-32
ABCD
........Engine oil &
engine oil filter Petrol models ReplaceEvery 7,500 km (4,500
miles) or 6 monthsMA-23
,
MA-23
Diesel models ReplaceEvery 10,000 km (6,000
miles) or 6 monthsMA-32,
MA-33
A...E.......Fuel filter Diesel models Check &
drain
waterEvery 10,000 km (6,000
miles) or 6 monthsFL-15
ReplaceEvery 20,000 km
(12,000 miles) or 12
monthsMA-31

MA-12
PERIODIC MAINTENANCE
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), then every 60,000 km (36,000 miles). 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)
Abbreviations: I = Inspect and correct or replace as necessary,R = Replace, L = Lubricate. Cooling system I I I IMA-21
Fuel linesIIMA-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 IEC-111 2 o r
EC-
111 2
Heated oxygen sensor 1 See
NOTE (5)EC-1320
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)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
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)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
Underhood and under vehicle
Headlamp aiming I I I ILT- 6
Brake & clutch, systems and fluid (For
level & leaks)IIIIMA-35,MA-
39
Brake fluidRRMA-39
Brake booster vacuum hoses, connec-
tions & check valveIIBR-19
Power steering fluid & lines (For level
& leaks)IIIIMA-40
Manual transaxle gear oil (For level &
leaks)IIIIMA-35
Automatic transaxle fluid (For level &
leaks)IIIIMA-36
Transfer gear oil (For level & leaks) I I I IMA-37
Differential gear oil (For level & leaks
or replace)IRIRMA-38,MA-
38

PERIODIC MAINTENANCE
MA-15
C
D
E
F
G
H
I
J
K
MA
B
MA
H — Driving on rough and/or muddy roads or in the desert
I — Driving with frequent use of braking or in mountainous areas
J — Frequent off road use or driving in water
K —Sustained high speed driving
L — For models without Euro-OBD system
Maintenance operation: Check = Check and correct or replace as necessary.
Driving conditionMaintenance itemMainte-
nance
opera-
tionMaintenance intervalRefer-
ence
page
A
...........Air cleaner filterPetrol models ReplaceEvery 30,000 km
(18,000 miles) MA-22
Diesel models ReplaceEvery 30,000 km
(18,000 miles) MA-32
ABCD
........Engine oil &
engine oil filter Petrol models ReplaceEvery 7,500 km (4,500
miles) MA-23
,
MA-23
Diesel models ReplaceEvery 10,000 km (6,000
miles) MA-32,
MA-33
A...E.......Fuel filter Diesel models Check &
drain
waterEvery 10,000 km (6,000
miles) FL-15
ReplaceEvery 30,000 km
(18,000 miles) MA-31
...........LHeated oxygen
sensor 1Petrol models InspectEvery 60,000 km
(36,000 miles) EC-1320
.....F......Brake fluidPetrol models ReplaceEvery 30,000 km
(18,000 miles) MA-39Diesel models ReplaceEvery 30,000 km
(18,000 miles) MA-39
..C
....H
....Differential gear
oilPetrol models ReplaceEvery 30,000 km
(18,000 miles) MA-38Diesel models ReplaceEvery 30,000 km
(18,000 miles) MA-38
..C....H....Automatic tran-
saxle fluidPetrol models ReplaceEvery 60,000 km
(36,000 miles) MA-37
......GH....Steering gear &
linkage, axle &
suspension
parts, propeller
shaft, front drive
shafts & exhaust
systemPetrol models InspectEvery 30,000 km
(18,000 miles) MA-
40,MA-41
,MA-37
,MA-41
,MA-35
Diesel models InspectEvery 30,000 km
(18,000 miles) MA-
40,MA-41
,MA-37
,MA-41
,MA-35
A.C...GHI...Brake pads,
rotors & other
brake compo-
nentsPetrol models InspectEvery 15,000 km (9,000
miles) MA-
40,MA-39
,MA-40
Diesel models InspectEvery 10,000 km (6,000
miles) MA-40,MA-39
,MA-40
A...........Ventilation air fil-
terPetrol models ReplaceEvery 15,000 km (9,000
miles) AT C - 1 2 1Diesel models ReplaceEvery 10,000 km (6,000
miles) AT C - 1 2 1

IDX-4
ALPHABETICAL INDEX
Cylinder head bolt tightening(YD22DDTi) ....... EM-184
Cylinder head gasket selection(YD22DDTi) ... EM-185
Cylinder head(QR20DE•QR25DE) ................... EM-59
Cylinder head(YD22DDTi) .............................. EM-182
D
Data link connector .......... EC-424
,EC-745,EC-1111,
EC-1385
Data link connector for Consult ........... EC-96,EC-488,
EC-827
,EC-1174,EC-1431
Daytime light system ............................................. LT-9
Daytime running light - See Daytime light system LT-9
DEF - Wiring diagram ....................................... GW-15
Desiccant Assembly ....................... ATC-30,ATC-146
Diagnosis sensor unit ..................................... SRS-40
Diagnostic trouble code (DTC) ...................... EC-1406
Diagnostic trouble code (DTC) for OBD system EC-20,
EC-47
,EC-432,EC-454,EC-753,EC-779,EC-1119,
EC-1141
,EC-1393
Diagnostic trouble code (DTC) inspection priority chart
EC-70
,EC-463,EC-802,EC-1150
Differential gear (FF M/T) ..................... MT-21,MT-26
DLC - Wiring diagram ...... EC-424,EC-745,EC-1111,
EC-1385
Door glass ........................................... GW-44,GW-46
Door glass Fitting Adjustment ............. GW-44,GW-46
Door lock ................................................. BL-65,BL-68
Door mirror ........................................................ GW-49
Door trim ............................................................. EI-23
Door, front ............................................................ BL-8
Door, rear ............................................................. BL-8
Drive belt inspection(QR20DE•QR25DE) ......... MA-19
Drive belt inspection(YD22DDTi) ...................... MA-26
Drive belt(QR20DE•QR25DE) .......................... EM-12
Drive belt(YD22DDTi) ..................................... EM-118
Drive shaft (front) ............................................. FAX-11
Drive shaft (rear) ............................................... RAX-9
Driver air bag .................................................. SRS-29
Dropping resistor (A/T) ...................... AT-169,AT-402
DTC work support .............................. EC-103,EC-834
DTRL - Wiring diagram ......................................... LT-9
Dual pressure switch ........ ATC-18,ATC-85,ATC-143
Duct and grilles ............................... ATC-127,MTC-29
E
ECM input/output signal ....... EC-87
,EC-479,EC-819,
EC-1166
ECM power supply EC-116,EC-267,EC-507,EC-580,
EC-848
,EC-995,EC-1193,EC-1269,EC-1442
ECM relay ...................................................... EC-1538
ECM/PW - Wiring diagram . EC-268,EC-581,EC-996,
EC-1270
ECMRLY - Wiring diagram ............................ EC-1539
ECTS - Wiring diagram ...... EC-151,EC-525,EC-883,
EC-1211
,EC-1457
EDU - Wiring diagram .................................... EC-1503
EGR function ................................................. EC-1551
EGR volume control valve ............................. EC-1551
EGRC/V - Wiring diagram .............................. EC-1553
Electric sunroof .................................................... RF-3
Electric throttle control actuator ....... EC-276,EC-278,
EC-584
,EC-586,EC-1010,EC-1012,EC-1273,
EC-1275
Electrical unit .................................................... PG-71
Electrical units location ..................................... PG-63
Electronic drive unit (EDU) ............................ EC-1501
Electronic fuel injection pump(YD22DDTi) ...... EM-147
Electronic ignition (EI) system EC-35,EC-445,EC-768,
EC-1132
Engine control circuit diagram EC-85,EC-477,EC-817,
EC-1164
,EC-1423
Engine control component parts location .......... EC-81,
EC-473
,EC-813,EC-1160
Engine control module (ECM) .......... EC-260,EC-573,
EC-988
,EC-1262,EC-1536
Engine control system diagram and chart ........ EC-31,
EC-441
,EC-763,EC-1127,EC-1398
Engine coolant temperature sensor (ECTS) ... EC-149,
EC-523
,EC-881,EC-1209,EC-1456
Engine coolant(QR20DE•QR25DE) .................... CO-9
Engine coolant(YD22DDTi) .............................. CO-29
Engine fail-safe system ........ EC-71,EC-464,EC-803,
EC-1151
Engine oil filter replacement(QR20DE•QR25DE) .........
MA-23
Engine oil filter replacement(YD22DDTi) .......... MA-33
Engine oil precautions .......................................... GI-7
Engine oil replacement(QR20DE•QR25DE) ..... MA-23
Engine oil replacement(YD22DDTi) .................. MA-32
Engine oil(QR20DE•QR25DE) ............................. LU-7
Engine oil(YD22DDTi) ....................................... LU-18
Engine removal(QR20DE•QR25DE) ................ EM-69
Engine removal(YD22DDTi) ........................... EM-193
ETC1 - Wiring diagram ..................... EC-280,EC-588
ETC2 - Wiring diagram ..................... EC-287,EC-595
ETC3 - Wiring diagram ..................... EC-292,EC-600
EVAP canister purge volume control solenoid valve ....
EC-244
,EC-425,EC-692,EC-746,EC-972,EC-1112,
EC-1340
,EC-1388
EVAP vapor lines inspection(QR20DE•QR25DE) ........
MA-25
Evaporative emission (EVAP) system EC-425,EC-746,
EC-1112
,EC-1386
Evaporator .................................................... ATC-145
Exhaust manifold(QR20DE•QR25DE) .............. EM-24
Exhaust manifold(YD22DDTi) ......................... EM-127
Exhaust system ................................................... EX-2
Exhaust system inspection ..................... EX-2,MA-35
Expansion valve ............................................ ATC-146
Exterior EI-13,EI-14,EI-16,EI-17,EI-18,EI-19,EI-21,
EI-22
F
F/FOG - Wiring diagram ......................... LT-33
,LT-34
F/PUMP - Wiring diagram EC-407,EC-728,EC-1094,

IDX-6
ALPHABETICAL INDEX
EC-181,EC-536,EC-862,EC-901,EC-908,EC-917,
EC-1231
HO2S2 - Wiring diagram .... EC-187,EC-195,EC-310,
EC-318
,EC-923,EC-930,EC-1038,EC-1045
HO2S2H - Wiring diagram ................. EC-135,EC-867
Hood .................................................................... BL-4
Horn ................................................................. WW-23
HORN - Wiring diagram ................................... WW-23
How to erase DTC ......................................... EC-1406
How to erase DTC for OBD system .... EC-56,EC-455,
EC-788
,EC-1142
I
IATS - Wiring diagram ....................... EC-146
,EC-878
IATSEN - Wiring diagram ................ EC-668,EC-1317
Identification ..................................................... ATC-12
Idle air volume learning ........ EC-39,EC-450,EC-772,
EC-1137
Idle speed EC-73,EC-465,EC-805,EC-1152,EC-1412
IGN/SG - Wiring diagram ................. EC-380,EC-1075
Ignition coil ........ EC-379,EC-683,EC-1074,EC-1331
Ignition coil(QR20DE•QR25DE) ....................... EM-29
Ignition control system ..... EC-379,EC-683,EC-1074,
EC-1331
Ignition timing ........ EC-73,EC-465,EC-805,EC-1152
IGNSYS - Wiring diagram ................ EC-684,EC-1332
ILL - Wiring diagram ........................................... LT-45
Illumination .......................................................... LT-45
In vehicle sensor ........... ATC-102,ATC-104,ATC-113
INJECT - Wiring diagram . EC-389,EC-710,EC-1084,
EC-1358
,EC-1475
Injection nozzle(YD22DDTi) ........................... EM-144
Injector .............. EC-388,EC-709,EC-1083,EC-1357
Input shaft (FF M/T) .............................. MT-18,MT-23
Instrument panel ................................................... IP-3
INT/L - Wiring diagram ........................................ LT-65
Intake air temperature sensor ........... EC-144,EC-160,
EC-667
,EC-876,EC-1316
Intake door control linkage adjustment ............ ATC-69
Intake door motor ATC-68,ATC-119,MTC-11,MTC-23
Intake manifold(QR20DE•QR25DE) ................. EM-16
Intake manifold(YD22DDTi) ............................ EM-123
Intake sensor ................................ ATC-108,ATC-115
Intake valve timing control . EC-125,EC-699,EC-857,
EC-1347
Intake valve timing control solenoid valve ...... EC-271,
EC-699
,EC-1005,EC-1347
Interior ....................... EI-23,EI-25,EI-26,EI-28,EI-29
Interior lamp ........................................................ LT-55
Interior lamp on-off control ...................... LT-55,LT-56
ISO 15031-5 Mode 1 - 9 ...................... EC-44,EC-777
IVC - Wiring diagram ....................... EC-273,EC-1007
IVC/V - Wiring diagram .................... EC-701,EC-1349
J
Joint connector (J/C) ............................. PG-70
,PG-74
K
Keyless entry system - See Multi-remote control system
BL-55
Knock sensor (KS) EC-222,EC-546,EC-951,EC-1235
KS - Wiring diagram ........... EC-224,EC-548,EC-953,
EC-1237
L
LAN system circuit .......................................... ATC-59
License lamp ...................................................... LT-30
Line pressure solenoid valve ........................... AT-156
Line pressure test (A/T) ....................... AT-67,AT-268
Liquid gasket application(QR20DE•QR25DE) ... EM-6,
EM-111
,LU-3,LU-15,CO-3,CO-23
LOAD - Wiring diagram .... EC-416,EC-737,EC-1103,
EC-1377
Location of electrical units ................................ PG-63
Lock, door ............................................... BL-65,BL-68
Lubricant (R134a) A/C ........................ ATC-5,ATC-24
Lubrication circuit (engine)(QR20DE•QR25DE) .. LU-5
Lubrication circuit (engine)(YD22DDTi) ............. LU-17
Lubrication oil A/C ......................................... ATC-150
Lubrication-locks, hinges and hood latches ...... MA-41
M
M/T major overhaul ............................... MT-26
,MT-35
M/T oil replacement .......................................... MT-10
M/T removal and installation ............................. MT-15
MAFS - Wiring diagram ..... EC-140,EC-519,EC-872,
EC-1001
,EC-1205,EC-1453
Magnet clutch ................................. ATC-78,ATC-135
MAIN - Wiring diagram ...... EC-116,EC-507,EC-848,
EC-1193
,EC-1443
Mainshaft (M/T) ..................................... MT-18,MT-23
Maintenance (engine)(QR20DE•QR25DE) ....... MA-19
Maintenance (engine)(YD22DDTi) ................... MA-26
Malfunction indicator (MI) .. EC-263,EC-576,EC-991,
EC-1265
,EC-1407
Malfunction indicator lamp (MIL) ........ EC-58,EC-457,
EC-790
,EC-1144
Mass air flow sensor (MAFS) ........... EC-138,EC-516,
EC-870
,EC-999,EC-1202,EC-1451
Master cylinder (brake) ...................................... BR-13
Master cylinder (clutch) ........................................ CL-9
METER - Wiring diagram ........................... DI-8,DI-28
MIL - Wiring diagram ......... EC-264,EC-577,EC-992,
EC-1266
MIL/DL - Wiring diagram ................................ EC-1573
MIRROR - Wiring diagram ............................... GW-50
Mirror defogger ................................................ GW-15
Mirror, door ...................................................... GW-49
Mirror, out side ................................................. GW-49
Misfire ............................................... EC-217,EC-946
Mode door control linkage adjustment ........... ATC-64,
ATC-124
,MTC-9,MTC-27
Mode door motor ............................ ATC-62,ATC-124