2001 NISSAN X-TRAIL service indicator

TERMINOLOGY
GI-47
C
D
E
F
G
H
I
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K
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MB
GI
Nonvolatile random access memory NVRAM ***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Park/neutral position switch PNP switchPark/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain control module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valvePAIRC solenoid valve AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM ***
Read only memory ROM ***
Scan tool ST ***
Secondary air injection pump AIR pump ***
Secondary air injection system AIR system ***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI ***
Simultaneous multiport fuel injection sys-
tem*** Simultaneous fuel injection
Smoke puff limiter system SPL system ***
Supercharger SC ***
Supercharger bypass SCB ***
System readiness test SRT ***
Thermal vacuum valve TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OC Catalyst
Three way + oxidation catalytic converter
systemTWC + OC system ***
Throttle body TBThrottle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valveLock-up cancel solenoid
Lock-up solenoid NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

EM-102
[QR]
SERVICE DATA AND SPECIFICATIONS (SDS)
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
CYLINDER BLOCK
Unit: mm (in) Item Standard
Camshaft runout [TIR] (Total indicator reading) Less than 0.04 (0.0016)
Cam height “A”Intake 45.665 - 45.855 (1.7978 - 1.8053)
ExhaustQR20DE 42.825 - 43.015 (1.6860 - 1.6935)
QR25DE 43.975 - 44.165 (1.7313 - 1.7388)
Outer diameter of camshaft journalNo. 1 27.935 - 27.955 (1.0998 - 1.1006)
No. 2, 3, 4 and 5 23.435 - 23.455 (0.9226 - 0.9234)
Inner diameter of camshaft bracketNo. 1 28.000 - 28.021 (1.1024 - 1.1032)
No. 2, 3, 4 and 5 23.500 - 23.521 (0.9252 - 0.9260)
Camshaft journal clearance 0.045 - 0.086 (0.0018 - 0.0034)
Camshaft end play0.115 - 0.188 (0.0045 - 0.0074)
Camshaft sprocket runout [TIR] (Total indicator reading) Less than 0.15 (0.0059)
SEM671
Surface flatness Limit 0.1 (0.004)
Cylinder boreInner diameterStandardGrade No. 1 89.000 - 89.010 (3.5039 - 3.5043)
Grade No. 2 89.010 - 89.020 (3.5043 - 3.5047)
Grade No. 3 89.020 - 89.030 (3.5047 - 3.5051)
Wear limit 0.2 (0.008)
Out-of-round (X − Y) Less than 0.015 (0.0006)
Ta p e r ( C− A) Less than 0.01 (0.0004)
PBIC0281E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-105
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
CRANKSHAFT
Unit: mm (in)
Center distance “r”QR20DE 40.11 - 40.19 (1.5791 - 1.5823)
QR25DE 49.60 - 50.04 (1.9528 - 1.9701)
Out-of-round (X − Y) Standard Less than 0.005 (0.0002)
Taper (A − B) Standard Less than 0.005 (0.0002)
Runout [TIR] (Total indicator reading) Limit Less than 0.05 (0.002)
Free end playStandard 0.10 - 0.26 (0.0039 - 0.0102)
Limit 0.30 (0.0118)
SEM645SEM715

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-225
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
CYLINDER BLOCK
Unit: mm (in) Depth (H)Intake 8.83 - 9.13 (0.3476 - 0.3594)
Exhaust 9.06 - 9.36 (0.3567 - 0.3685)
Projection (L)Intake 36.53 - 36.98 (1.4382 - 1.4559)
Exhaust 36.53 - 37.01 (1.4382 - 1.4571)
Item Standard Limit
Camshaft oil clearance 0.045 - 0.086 (0.0018 - 0.0034)
Camshaft bracket inner diameterNo.1 30.500 - 30.521 (1.2008 - 1.2016)
— No. 2, 3, 4, 5 24.000 - 24.021 (0.9449 - 0.9457)
Camshaft journal outer diameterNo. 1 30.435 - 30.455 (1.1982 - 1.1990)
No. 2, 3, 4, 5 23.935 - 23.955 (0.9423 - 0.9431)
Camshaft runout [TIR*] — 0.02 (0.0008)
Camshaft sprocket runout [TIR*] Less than 0.15 (0.0059) —
Camshaft end play 0.070 - 0.148 (0.0028 - 0.0058) 0.24 (0.0094)
*: Total indicator reading
Cam height “A”Intake 39.505 - 39.695 (1.5553 - 1.5628)
Exhaust 39.905 - 40.095 (1.5711 - 1.5785)
Wear limit of cam height 0.15 (0.0059)
SEM671
Surface flatnessStandard Less than 0.03 (0.0012)
Limit 0.04 (0.0016)
Cylinder bore Inner diameterSta ndardGrade No. 1 86.000 - 86.010 (3.3858 - 3.3862)
Grade No. 2 86.010 - 86.020 (3.3862 - 3.3866)
Grade No. 3 86.020 - 86.030 (3.3866 - 3.3870)
Wear limit 0.07 (0.0028)
JEM207G

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-227
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
CONNECTING ROD
Unit: mm (in)
*: After installing in connecting rod
CRANKSHAFT
Unit: mm (in)
*: Total indicator readingCenter distance157.5 (6.201)
Bend [per 100 (3.94)] Limit 0.12 (0.0047)
Torsion [per 100 (3.94)] Limit 0.12 (0.0047)
Connecting rod small end inner diameter 30.080 - 31.000 (1.1842 - 1.2205)
Piston pin bushing inner diameter* 28.026 - 28.038 (1.1034 - 1.1039)
Connecting rod big end inner diameter* 55.000 - 55.013 (2.1654 - 2.1659)
Side clearanceStandard 0.200 - 0.350 (0.0079 - 0.0138)
Limit 0.4 (0.0157)
Main journal dia. “Dm” 62.951 - 62.975 (2.4784 - 2.4793)
Pin journal dia. “Dp” 51.954 - 51.974 (2.0454 - 2.0462)
Center distance “r” 46.97 - 47.03 (1.8492 - 1.8516)
Out-of-round (X − Y)Standard Less than 0.003 (0.0001)
Limit 0.005 (0.0002)
Taper (A − B)Standard Less than 0.003 (0.0001)
Limit 0.005 (0.0002)
Runout [TIR*]Standard 0.05 (0.002.)
Limit 0.10 (0.0039)
Side clearanceStandard 0.10 - 0.25 (0.0039 - 0.0098)
Limit 0.30 (0.0118)
SEM645SEM715

EM-228
[YD22DDTi]
SERVICE DATA AND SPECIFICATIONS (SDS)
AVAILABLE MAIN BEARING
Main bearing
Unit: mm (in)
Under size
Unit: mm (in)
AVAILABLE CONNECTING ROD BEARING
Connecting Rod Bearing
Unit: mm (in)
Under size
Unit: mm (in)
MISCELLANEOUS COMPONENTS
Flywheel
Unit: mm (in)
*: Total indicator reading Grade number Thickness “T” Width “W” Identification color
0 1.816 - 1.820 (0.0715 - 0.0717)
19.9 - 20.1 (0.783 - 0.791)Black
1 1.820 - 1.824 (0.0717 - 0.0718) Brown
2 1.824 - 1.828 (0.0718 - 0.0720) Green
3 1.828 - 1.832 (0.0720 - 0.0721) Yellow
4 1.832 - 1.836 (0.0721 - 0.0723) Blue
SEM255G
Size Thickness Main journal diameter “Dm”
0.25 (0.0098) 1.949 - 1.953 (0.0767 - 0.0769)Grind so that bearing clearance is the
specified value.
Grade number Thickness “T” Width “W” Identification color (mark)
0 1.492 - 1.496 (0.0587 - 0.0589)
22.9 - 23.1
(0.902 - 0.909)Black
1 1.496 - 1.500 (0.0589 - 0.0591) Brown
2 1.500 - 1.504 (0.0591 - 0.0592) Green
Size Thickness Crank pin journal diameter “Dp”
0.08 (0.0031) 1.536 - 1.540 (0.0605 - 0.0606)
Grind so that bearing clearance is the
specified value. 0.12 (0.0047) 1.556 - 1.560 (0.0613 - 0.0614)
0.25 (0.0098) 1.621 - 1.625 (0.0638 - 0.0640)
Flywheel runout [TIR]*Standard 0.45 (0.0177) or less
Limit 1.3 (0.051) or less

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION
A
EC
ENGINE CONTROL SYSTEM
QR25(WITH EURO-OBD)
INDEX FOR DTC ...................................................... 20
Alphabetical Index .................................................. 20
DTC No. Index ....................................................... 22
PRECAUTIONS ........................................................ 25
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 25
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 25
Precaution .............................................................. 25
Wiring Diagrams and Trouble Diagnosis ................ 28
PREPARATION ......................................................... 29
Special Service Tools ............................................. 29
Commercial Service Tools ...................................... 29
ENGINE CONTROL SYSTEM .................................. 31
System Diagram ..................................................... 31
Vacuum Hose Drawing ........................................... 32
System Chart ......................................................... 33
Multiport Fuel Injection (MFI) System .................... 33
Electronic Ignition (EI) System ............................... 35
Air Conditioning Cut Control ................................... 36
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 37
CAN Communication .............................................. 37
BASIC SERVICE PROCEDURE .............................. 38
Idle Speed and Ignition Timing Check .................... 38
Accelerator Pedal Released Position Learning ...... 39
Throttle Valve Closed Position Learning ................ 39
Idle Air Volume Learning ........................................ 39
Fuel Pressure Check .............................................. 42
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 44
Introduction ............................................................ 44
Two Trip Detection Logic ........................................ 44
Emission-related Diagnostic Information ................ 45
NATS (Nissan Anti-theft System) ........................... 58
Malfunction Indicator (MI) ....................................... 58
OBD System Operation Chart ................................ 61
TROUBLE DIAGNOSIS ............................................ 67
Trouble Diagnosis Introduction ............................... 67DTC Inspection Priority Chart ................................. 70
Fail-safe Chart ........................................................ 71
Basic Inspection ..................................................... 73
Symptom Matrix Chart ............................................ 77
Engine Control Component Parts Location ............ 81
Circuit Diagram ....................................................... 85
ECM Harness Connector Terminal Layout ............. 87
ECM Terminals and Reference Value ..................
... 87
CONSULT-II Function ............................................. 94
Generic Scan Tool (GST) Function .......................104
CONSULT-II Reference Value in Data Monitor .....106
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................109
TROUBLE DIAGNOSIS - SPECIFICATION VALUE ..111
Description .............................................................111
Testing Condition ...................................................111
Inspection Procedure .............................................111
Diagnostic Procedure ...........................................112
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................115
Description ............................................................115
Diagnostic Procedure ...........................................115
POWER SUPPLY CIRCUIT FOR ECM ...................116
Wiring Diagram .....................................................116
ECM Terminals and Reference Value ...................117
Diagnostic Procedure ...........................................117
Component Inspection ..........................................121
DTC U1000 CAN COMMUNICATION LINE ............122
Description ............................................................122
On Board Diagnosis Logic ....................................122
DTC Confirmation Procedure ...............................122
Wiring Diagram .....................................................123
Diagnostic Procedure ...........................................124
DTC P0011 IVT CONTROL .....................................125
Description ............................................................125
CONSULT-II Reference Value in Data Monitor Mode
.125
ECM Terminals and Reference Value ...................125
On Board Diagnosis Logic ....................................126

EC-6
DATA LINK CONNECTOR ......................................424
Wiring Diagram .....................................................424
EVAPORATIVE EMISSION SYSTEM .....................425
Description ............................................................425
Component Inspection ..........................................427
POSITIVE CRANKCASE VENTILATION ...............428
Description ............................................................428
Component Inspection ..........................................428
SERVICE DATA AND SPECIFICATIONS (SDS) ....430
Fuel Pressure .......................................................430
Idle Speed and Ignition Timing .............................430
Calculated Load Value ..........................................430
Mass Air Flow Sensor ...........................................430
Intake Air Temperature Sensor .............................430
Engine Coolant Temperature Sensor ...................430
Heated Oxygen Sensor 1 Heater .........................430
Heated Oxygen sensor 2 Heater ..........................430
Crankshaft Position Sensor (POS) .......................430
Camshaft Position Sensor (PHASE) ....................431
Throttle Control Motor ...........................................431
Injector ..................................................................431
Fuel Pump ............................................................431
QR25(WITHOUT EURO-OBD)
INDEX FOR DTC .....................................................432
Alphabetical Index ................................................432
DTC No. Index ......................................................433
PRECAUTIONS .......................................................435
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................435
On Board Diagnostic (OBD) System of Engine and
A/T ........................................................................435
Precaution ............................................................435
Wiring Diagrams and Trouble Diagnosis ..............438
PREPARATION .......................................................439
Special Service Tools ...........................................439
Commercial Service Tools ....................................439
ENGINE CONTROL SYSTEM ................................441
System Diagram ...................................................441
Vacuum Hose Drawing .........................................442
System Chart ........................................................443
Multiport Fuel Injection (MFI) System ...................443
Electronic Ignition (EI) System .............................445
Air Conditioning Cut Control .................................446
Fuel Cut Control (at No Load and High Engine
Speed) ..................................................................447
CAN Communication ............................................447
BASIC SERVICE PROCEDURE .............................448
Idle Speed and Ignition Timing Check ..................448
Accelerator Pedal Released Position Learning ....449
Throttle Valve Closed Position Learning ...............449
Idle Air Volume Learning ......................................450
Fuel Pressure Check ............................................452
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..........454
Introduction ...........................................................454
Two Trip Detection Logic ......................................454
Emission-related Diagnostic Information ..............454NATS (Nissan Anti-theft System) ..........................456
Malfunction Indicator (MI) .....................................457
TROUBLE DIAGNOSIS ..........................................460
Trouble Diagnosis Introduction .............................460
DTC Inspection Priority Chart ...............................463
Fail-safe Chart ......................................................464
Basic Inspection ....................................................465
Symptom Matrix Chart ..........................................469
Engine Control Component Parts Location ...........473
Circuit Diagram .....................................................477
ECM Harness Connector Terminal Layout ............479
ECM Terminals and Reference Value ...................479
CONSULT-II Function ...........................................486
CONSULT-II Reference Value in Data Monitor .....496
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................499
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .502
Description ............................................................502
Testing Condition ..................................................502
Inspection Procedure ........................................... .502
Diagnostic Procedure ............................................503
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................506
Description ............................................................506
Diagnostic Procedure ............................................506
POWER SUPPLY CIRCUIT FOR ECM ...................507
Wiring Diagram .....................................................507
ECM Terminals and Reference Value ...................508
Diagnostic Procedure ............................................508
Component Inspection ..........................................512
DTC U1000 CAN COMMUNICATION LINE ............513
Description ............................................................513
On Board Diagnosis Logic ....................................513
DTC Confirmation Procedure ................................513
Wiring Diagram .....................................................514
Diagnostic Procedure ............................................515
DTC P0102, P0103 MAF SENSOR .........................516
Component Description ........................................516
CONSULT-II Reference Value in Data Monitor Mode
.516
ECM Terminals and Reference Value ...................516
On Board Diagnosis Logic ....................................516
DTC Confirmation Procedure ................................517
Wiring Diagram .....................................................519
Diagnostic Procedure ............................................520
Component Inspection ..........................................522
Removal and Installation .......................................522
DTC P0117, P0118 ECT SENSOR ..........................523
Component Description ........................................523
On Board Diagnosis Logic ....................................523
DTC Confirmation Procedure ................................524
Wiring Diagram .....................................................525
Diagnostic Procedure ............................................526
Component Inspection ..........................................527
Removal and Installation .......................................527
DTC P0122, P0123 TP SENSOR ............................528
Component Description ........................................528
CONSULT-II Reference Value in Data Monitor Mode
.528