2005 NISSAN X-TRAIL check

CO-42
[YD22DDTi]
RADIATOR (ALUMINUM TYPE)

INSPECTION
1. Apply pressure with the radiator cap tester adapter (special ser-
vice tool) and the radiator cap tester (commercial service tool).
WARNING:
To prevent the risk of hose coming undone while under
pressure, securely fasten it down with hose clamp.
2. Check for leakage by soaking radiator in water container with
the testing pressure applied.Testing pressure
: 157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC933
SLC934

CO-44
[YD22DDTi]
WATER PUMP

INSPECTION AFTER REMOVAL

Visually check if there is no significant dirt or rusting on the
water pump body and vane.

Make sure that there is no looseness in the vane shaft, and that
it turns smoothly when rotated by hand.

If there are any unusualness, replace water pump assembly as
necessary.
INSTALLATION

Installation is the reverse order of removal.

Install water pump pulley with the front mark (painted white, used to prevent errors during assembly) fac-
ing the front of engine. Refer to CO-43, "
WATER PUMP" .
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using the radiator cap tester adapter (special service tool:
EG17650301) and the radiator cap tester (commercial service tool). Refer to CO-32, "
CHECKING RADIA-
TOR SYSTEM FOR LEAKS" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.
SBIA0132E

CO-46
[YD22DDTi]
THERMOSTAT AND WATER PIPING

INSPECTION AFTER REMOVAL
Thermostat

Place a string so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.

The valve opening temperature is the temperature at which the
valve opens and falls from the thread.

Continue heating. Check the full-open lift amount.

After checking the full-open lift amount, lower the water temper-
ature and check the valve closing temperature.
Standard values

If out of the standard, replace thermostat.
INSTALLATION
Note the following, and install in the reverse order of removal.

Install the thermostat with the whole circumference of each
flange part fit securely inside the rubber ring.

Install the thermostat with the jiggle valve facing upwards.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using the radiator cap tester adapter (special service tool:
EG17650301) and the radiator cap tester (commercial service tool). Refer to CO-32, "
CHECKING RADIA-
TOR SYSTEM FOR LEAKS" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.
SLC252B
Item Thermostat
Valve opening temperature 80 - 84°C (176 - 183° F)
Full-open lift amount More than 10 mm/ 95°C (0.39 in/ 203 °F)
Valve closing temperature More than 77°C (171°F)
JLC300B

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC

ENGINE CONTROL SYSTEM
QR (WITH EURO-OBD)
INDEX FOR DTC ...................................................... 19
Alphabetical Index .................................................. 19
DTC No. Index ....................................................... 21
PRECAUTIONS ........................................................ 24
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 24
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 24
Precaution .............................................................. 24
Wiring Diagrams and Trouble Diagnosis ................ 27
PREPARATION ......................................................... 28
Special Service Tools ............................................. 28
Commercial Service Tools ...................................... 29
ENGINE CONTROL SYSTEM .................................. 30
System Diagram ..................................................... 30
Vacuum Hose Drawing ........................................... 32
System Chart ......................................................... 34
Multiport Fuel Injection (MFI) System .................... 35
Electronic Ignition (EI) System ............................... 37
Air Conditioning Cut Control ................................... 38
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 38
CAN Communication Unit ...................................... 39
BASIC SERVICE PROCEDURE .............................. 45
Idle Speed and Ignition Timing Check .................... 45
Accelerator Pedal Released Position Learning ...... 46
Throttle Valve Closed Position Learning ................ 47
Idle Air Volume Learning ........................................ 47
Fuel Pressure Check .............................................. 49
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 52
Introduction ............................................................ 52
Two Trip Detection Logic ........................................ 52
Emission-related Diagnostic Information ................ 53
NATS (Nissan Anti-theft System) ........................... 64
Malfunction Indicator (MI) ....................................... 64
OBD System Operation Chart ................................ 67
TROUBLE DIAGNOSIS ............................................ 73
Trouble Diagnosis Introduction ............................... 73DTC Inspection Priority Chart ................................. 77
Fail-Safe Chart ....................................................... 78
Basic Inspection ..................................................... 79
Symptom Matrix Chart ............................................ 84
Engine Control Component Parts Location ............ 88
Circuit Diagram ....................................................... 93
ECM Harness Connector Terminal Layout ............. 95
ECM Terminals and Reference Value ..................... 95
CONSULT-II Function (ENGINE) ..........................103
Generic Scan Tool (GST) Function .......................113
CONSULT-II Reference Value in Data Monitor Mode
.115
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................118
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .120
Description ............................................................120
Testing Condition ..................................................120
Inspection Procedure ............................................120
Diagnostic Procedure ...........................................121
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................124
Description ............................................................124
Diagnostic Procedure ...........................................124
POWER SUPPLY AND GROUND CIRCUIT ...........125
Wiring Diagram .....................................................125
Diagnostic Procedure ...........................................126
Component Inspection ..........................................132
Ground Inspection ................................................132
DTC U1000, U1001 CAN COMMUNICATION LINE .133
Description ............................................................133
On Board Diagnosis Logic ....................................133
DTC Confirmation Procedure ...............................133
Wiring Diagram .....................................................134
Diagnostic Procedure ...........................................135
DTC P0011 IVT CONTROL .....................................136
Description ............................................................136
CONSULT-II Reference Value in Data Monitor Mode
.136
On Board Diagnosis Logic ....................................137

EC-2 DTC Confirmation Procedure ...............................137
Diagnostic Procedure ...........................................138
DTC P0031, P0032 HO2S1 HEATER .....................139
Description ............................................................139
CONSULT-II Reference Value in Data Monitor Mode
.139
On Board Diagnosis Logic ....................................139
DTC Confirmation Procedure ...............................139
Wiring Diagram .....................................................141
Diagnostic Procedure ...........................................142
Component Inspection ..........................................144
Removal and Installation ......................................144
DTC P0037, P0038 HO2S2 HEATER .....................145
Description ............................................................145
CONSULT-II Reference Value in Data Monitor Mode
.145
On Board Diagnosis Logic ....................................145
DTC Confirmation Procedure ...............................145
Wiring Diagram .....................................................147
Diagnostic Procedure ...........................................148
Component Inspection ..........................................150
Removal and Installation ......................................150
DTC P0102, P0103 MAF SENSOR .........................151
Component Description ........................................151
CONSULT-II Reference Value in Data Monitor Mode
.151
On Board Diagnosis Logic ....................................151
DTC Confirmation Procedure ...............................151
Wiring Diagram .....................................................153
Diagnostic Procedure ...........................................154
Component Inspection ..........................................157
Removal and Installation ......................................158
DTC P0112, P0113 IAT SENSOR ...........................159
Component Description ........................................159
On Board Diagnosis Logic ....................................159
DTC Confirmation Procedure ...............................159
Wiring Diagram .....................................................161
Diagnostic Procedure ...........................................162
Component Inspection ..........................................164
Removal and Installation ......................................164
DTC P0117, P0118 ECT SENSOR ..........................165
Component Description ........................................165
On Board Diagnosis Logic ....................................165
DTC Confirmation Procedure ...............................166
Wiring Diagram .....................................................167
Diagnostic Procedure ...........................................168
Component Inspection ..........................................170
Removal and Installation ......................................170
DTC P0122, P0123 TP SENSOR ............................171
Component Description ........................................171
CONSULT-II Reference Value in Data Monitor Mode
.171
On Board Diagnosis Logic ....................................171
DTC Confirmation Procedure ...............................171
Wiring Diagram .....................................................173
Diagnostic Procedure ...........................................175
Component Inspection ..........................................178
Removal and Installation ......................................178DTC P0132 HO2S1 .................................................179
Component Description ........................................179
CONSULT-II Reference Value in Data Monitor Mode
.179
On Board Diagnosis Logic ....................................179
DTC Confirmation Procedure ................................180
Wiring Diagram .....................................................181
Diagnostic Procedure ............................................182
Component Inspection ..........................................184
Removal and Installation .......................................185
DTC P0133 HO2S1 .................................................186
Component Description ........................................186
CONSULT-II Reference Value in Data Monitor Mode
.186
On Board Diagnosis Logic ....................................186
DTC Confirmation Procedure ................................187
Overall Function Check .........................................188
Wiring Diagram .....................................................189
Diagnostic Procedure ............................................190
Component Inspection ..........................................193
Removal and Installation .......................................195
DTC P0134 HO2S1 .................................................196
Component Description ........................................196
CONSULT-II Reference Value in Data Monitor Mode
.196
On Board Diagnosis Logic ....................................196
DTC Confirmation Procedure ................................197
Overall Function Check .........................................197
Wiring Diagram .....................................................199
Diagnostic Procedure ............................................200
Component Inspection ..........................................201
Removal and Installation .......................................203
DTC P0138 HO2S2 .................................................204
Component Description ........................................204
CONSULT-II Reference Value in Data Monitor Mode
.204
On Board Diagnosis Logic ....................................204
DTC Confirmation Procedure ................................204
Wiring Diagram .....................................................206
Diagnostic Procedure ............................................207
Component Inspection ..........................................208
Removal and Installation .......................................210
DTC P0139 HO2S2 .................................................211
Component Description ........................................211
CONSULT-II Reference Value in Data Monitor Mode
.211
On Board Diagnosis Logic ....................................211
DTC Confirmation Procedure ................................212
Overall Function Check .........................................213
Wiring Diagram .....................................................214
Diagnostic Procedure ............................................215
Component Inspection ..........................................217
Removal and Installation .......................................218
DTC P0171 FUEL INJECTION SYSTEM FUNCTION .219
On Board Diagnosis Logic ....................................219
DTC Confirmation Procedure ................................219
Wiring Diagram .....................................................221
Diagnostic Procedure ............................................222

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DTC P0172 FUEL INJECTION SYSTEM FUNCTION . 225
On Board Diagnosis Logic ................................... 225
DTC Confirmation Procedure ............................... 225
Wiring Diagram .................................................... 227
Diagnostic Procedure ........................................... 228
DTC P0222, P0223 TP SENSOR ........................... 231
Component Description ........................................ 231
CONSULT-II Reference Value in Data Monitor Mode
. 231
On Board Diagnosis Logic ................................... 231
DTC Confirmation Procedure ............................... 231
Wiring Diagram .................................................... 233
Diagnostic Procedure ........................................... 235
Component Inspection ......................................... 238
Removal and Installation ...................................... 238
DTC P0300 - P0304 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 4 CYLINDER MISFIRE ..................... 239
On Board Diagnosis Logic ................................... 239
DTC Confirmation Procedure ............................... 239
Diagnostic Procedure ........................................... 240
DTC P0327, P0328 KS ........................................... 245
Component Description ........................................ 245
On Board Diagnosis Logic ................................... 245
DTC Confirmation Procedure ............................... 245
Wiring Diagram .................................................... 246
Diagnostic Procedure ........................................... 247
Component Inspection ......................................... 249
Removal and Installation ...................................... 249
DTC P0335 CKP SENSOR (POS) .......................... 250
Component Description ........................................ 250
CONSULT-II Reference Value in Data Monitor Mode
. 250
On Board Diagnosis Logic ................................... 250
DTC Confirmation Procedure ............................... 250
Wiring Diagram .................................................... 251
Diagnostic Procedure ........................................... 253
Component Inspection ......................................... 255
Removal and Installation ...................................... 256
DTC P0340 CMP SENSOR (PHASE) ..................... 257
Component Description ........................................ 257
On Board Diagnosis Logic ................................... 257
DTC Confirmation Procedure ............................... 257
Wiring Diagram .................................................... 258
Diagnostic Procedure ........................................... 259
Component Inspection ......................................... 262
Removal and Installation ...................................... 263
DTC P0420 THREE WAY CATALYST FUNCTION . 264
On Board Diagnosis Logic ................................... 264
DTC Confirmation Procedure ............................... 264
Overall Function Check ........................................ 265
Diagnostic Procedure ........................................... 266
DTC P0444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE .............................. 269
Description ........................................................... 269
CONSULT-II Reference Value in Data Monitor Mode
. 269
On Board Diagnosis Logic ................................... 269
DTC Confirmation Procedure ............................... 270
Wiring Diagram .................................................... 271Diagnostic Procedure ...........................................273
Component Inspection ..........................................275
Removal and Installation ......................................275
DTC P0500 VSS ......................................................276
Description ............................................................276
On Board Diagnosis Logic ....................................276
DTC Confirmation Procedure ...............................276
Overall Function Check ........................................276
Diagnostic Procedure ...........................................277
DTC P0550 PSP SENSOR .....................................278
Component Description ........................................278
CONSULT-II Reference Value in Data Monitor Mode
.278
On Board Diagnosis Logic ....................................278
DTC Confirmation Procedure ...............................278
Wiring Diagram .....................................................279
Diagnostic Procedure ...........................................280
Component Inspection ..........................................282
Removal and Installation ......................................282
DTC P0605 ECM .....................................................283
Component Description ........................................283
On Board Diagnosis Logic ....................................283
DTC Confirmation Procedure ...............................283
Diagnostic Procedure ...........................................284
DTC P1065 ECM POWER SUPPLY .......................286
Component Description ........................................286
On Board Diagnosis Logic ....................................286
DTC Confirmation Procedure ...............................286
Wiring Diagram .....................................................287
Diagnostic Procedure ...........................................288
DTC P1111 IVT CONTROL SOLENOID VALVE .....290
Component Description ........................................290
CONSULT-II Reference Value in Data Monitor Mode
.290
On Board Diagnosis Logic ....................................290
DTC Confirmation Procedure ...............................290
Wiring Diagram .....................................................291
Diagnostic Procedure ...........................................292
Component Inspection ..........................................293
Removal and Installation ......................................293
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .............................................................294
Component Description ........................................294
On Board Diagnosis Logic ....................................294
DTC Confirmation Procedure ...............................294
Diagnostic Procedure ...........................................295
Removal and Installation ......................................295
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................296
Description ............................................................296
On Board Diagnosis Logic ....................................296
DTC Confirmation Procedure ...............................296
Wiring Diagram .....................................................297
Diagnostic Procedure ...........................................301
Component Inspection ..........................................304
Removal and Installation ......................................305
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .....................................................................306
Component Description ........................................306

EC-4 CONSULT-II Reference Value in Data Monitor Mode
.306
On Board Diagnosis Logic ....................................306
DTC Confirmation Procedure ...............................306
Wiring Diagram .....................................................308
Diagnostic Procedure ...........................................311
Component Inspection ..........................................313
DTC P1128 THROTTLE CONTROL MOTOR .........314
Component Description ........................................314
On Board Diagnosis Logic ....................................314
DTC Confirmation Procedure ...............................314
Wiring Diagram .....................................................315
Diagnostic Procedure ...........................................319
Component Inspection ..........................................320
Removal and Installation ......................................321
DTC P1143 HO2S1 .................................................322
Component Description ........................................322
CONSULT-II Reference Value in Data Monitor Mode
.322
On Board Diagnosis Logic ....................................322
DTC Confirmation Procedure ...............................323
Overall Function Check ........................................323
Diagnostic Procedure ...........................................324
Component Inspection ..........................................326
Removal and Installation ......................................327
DTC P1144 HO2S1 .................................................328
Component Description ........................................328
CONSULT-II Reference Value in Data Monitor Mode
.328
On Board Diagnosis Logic ....................................328
DTC Confirmation Procedure ...............................329
Overall Function Check ........................................329
Diagnostic Procedure ...........................................330
Component Inspection ..........................................332
Removal and Installation ......................................333
DTC P1146 HO2S2 .................................................334
Component Description ........................................334
CONSULT-II Reference Value in Data Monitor Mode
.334
On Board Diagnosis Logic ....................................334
DTC Confirmation Procedure ...............................335
Overall Function Check ........................................336
Wiring Diagram .....................................................337
Diagnostic Procedure ...........................................338
Component Inspection ..........................................340
Removal and Installation ......................................341
DTC P1147 HO2S2 .................................................342
Component Description ........................................342
CONSULT-II Reference Value in Data Monitor Mode
.342
On Board Diagnosis Logic ....................................342
DTC Confirmation Procedure ...............................343
Overall Function Check ........................................344
Wiring Diagram .....................................................345
Diagnostic Procedure ...........................................346
Component Inspection ..........................................348
Removal and Installation ......................................349
DTC P1211 TCS CONTROL UNIT ..........................350
Description ............................................................350On Board Diagnosis Logic ....................................350
DTC Confirmation Procedure ................................350
Diagnostic Procedure ............................................350
DTC P1212 TCS COMMUNICATION LINE .............351
Description ............................................................351
On Board Diagnosis Logic ....................................351
DTC Confirmation Procedure ................................351
Diagnostic Procedure ............................................351
DTC P1217 ENGINE OVER TEMPERATURE ........352
System Description ...............................................352
CONSULT-II Reference Value in Data Monitor Mode
.353
On Board Diagnosis Logic ....................................353
Overall Function Check .........................................353
Wiring Diagram .....................................................356
Diagnostic Procedure ............................................359
Main 12 Causes of Overheating ...........................366
Component Inspection ..........................................367
DTC P1225 TP SENSOR ........................................368
Component Description ........................................368
On Board Diagnosis Logic ....................................368
DTC Confirmation Procedure ................................368
Diagnostic Procedure ............................................369
Removal and Installation .......................................369
DTC P1226 TP SENSOR ........................................370
Component Description ........................................370
On Board Diagnosis Logic ....................................370
DTC Confirmation Procedure ................................370
Diagnostic Procedure ............................................371
Removal and Installation .......................................371
DTC P1229 SENSOR POWER SUPPLY ................372
On Board Diagnosis Logic ....................................372
DTC Confirmation Procedure ................................372
Wiring Diagram .....................................................373
Diagnostic Procedure ............................................374
DTC P1564 ASCD STEERING SWITCH ................377
Component Description ........................................377
CONSULT-II Reference Value in Data Monitor Mode
.377
On Board Diagnosis Logic ....................................377
DTC Confirmation Procedure ................................378
Wiring Diagram .....................................................379
Diagnostic Procedure ............................................383
Component Inspection ..........................................386
DTC P1572 ASCD BRAKE SWITCH ......................387
Component Description ........................................387
CONSULT-II Reference Value in Data Monitor Mode
.387
On Board Diagnosis Logic ....................................387
DTC Confirmation Procedure ................................388
Wiring Diagram .....................................................389
Diagnostic Procedure ............................................390
Component Inspection ..........................................395
DTC P1574 ASCD VEHICLE SPEED SENSOR .....396
System Description ...............................................396
On Board Diagnosis Logic ....................................396
DTC Confirmation Procedure ................................396
Diagnostic Procedure ............................................397

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DTC P1706 PNP SWITCH ...................................... 398
Component Description ........................................ 398
CONSULT-II Reference Value in Data Monitor Mode
. 398
On Board Diagnosis Logic ................................... 398
DTC Confirmation Procedure ............................... 398
Overall Function Check ........................................ 399
Wiring Diagram .................................................... 400
Diagnostic Procedure ........................................... 401
DTC P1720 VSS ..................................................... 403
Description ........................................................... 403
CONSULT-II Reference Value in Data Monitor Mode
. 403
On Board Diagnosis Logic ................................... 403
DTC Confirmation Procedure ............................... 403
Diagnostic Procedure ........................................... 404
DTC P1805 BRAKE SWITCH ................................ 405
Description ........................................................... 405
CONSULT-II Reference Value in Data Monitor Mode
. 405
On Board Diagnosis Logic ................................... 405
FAIL-SAFE MODE ............................................... 405
DTC Confirmation Procedure ............................... 405
Wiring Diagram .................................................... 406
Diagnostic Procedure ........................................... 407
Component Inspection ......................................... 408
DTC P2122, P2123 APP SENSOR ........................ 409
Component Description ........................................ 409
CONSULT-II Reference Value in Data Monitor Mode
. 409
On Board Diagnosis Logic ................................... 409
DTC Confirmation Procedure ............................... 410
Wiring Diagram ..................................................... 411
Diagnostic Procedure ........................................... 413
Component Inspection ......................................... 415
Removal and Installation ...................................... 415
DTC P2127, P2128 APP SENSOR ........................ 416
Component Description ........................................ 416
CONSULT-II Reference Value in Data Monitor Mode
. 416
On Board Diagnosis Logic ................................... 416
DTC Confirmation Procedure ............................... 417
Wiring Diagram .................................................... 418
Diagnostic Procedure ........................................... 420
Component Inspection ......................................... 423
Removal and Installation ...................................... 423
DTC P2135 TP SENSOR ........................................ 424
Component Description ........................................ 424
CONSULT-II Reference Value in Data Monitor Mode
. 424
On Board Diagnosis Logic ................................... 424
DTC Confirmation Procedure ............................... 424
Wiring Diagram .................................................... 426
Diagnostic Procedure ........................................... 428
Component Inspection ......................................... 431
Removal and Installation ...................................... 431
DTC P2138 APP SENSOR ..................................... 432
Component Description ........................................ 432
CONSULT-II Reference Value in Data Monitor Mode .432
On Board Diagnosis Logic ....................................432
DTC Confirmation Procedure ...............................433
Wiring Diagram .....................................................434
Diagnostic Procedure ...........................................436
Component Inspection ..........................................439
Removal and Installation ......................................439
IGNITION SIGNAL ..................................................440
Component Description ........................................440
Wiring Diagram .....................................................441
Diagnostic Procedure ...........................................444
Component Inspection ..........................................449
Removal and Installation ......................................450
INJECTOR CIRCUIT ...............................................451
Component Description ........................................451
CONSULT-II Reference Value in Data Monitor Mode
.451
Wiring Diagram .....................................................452
Diagnostic Procedure ...........................................453
Component Inspection ..........................................456
Removal and Installation ......................................456
VIAS ........................................................................457
Description ............................................................457
CONSULT-II Reference Value in Data Monitor Mode
.458
Wiring Diagram .....................................................459
Diagnostic Procedure ...........................................461
Component Inspection ..........................................464
Removal and Installation ......................................465
FUEL PUMP CIRCUIT ............................................466
Description ............................................................466
CONSULT-II Reference Value in Data Monitor Mode
.466
Wiring Diagram .....................................................467
Diagnostic Procedure ...........................................470
Component Inspection ..........................................473
Removal and Installation ......................................473
REFRIGERANT PRESSURE SENSOR ..................474
Component Description ........................................474
Wiring Diagram .....................................................475
Diagnostic Procedure ...........................................476
Removal and Installation ......................................479
ELECTRICAL LOAD SIGNAL ................................480
CONSULT-II Reference Value in Data Monitor Mode
.480
Wiring Diagram .....................................................481
Diagnostic Procedure ...........................................492
ASCD BRAKE SWITCH .........................................506
Component Description ........................................506
CONSULT-II Reference Value in Data Monitor Mode
.506
Wiring Diagram .....................................................507
Diagnostic Procedure ...........................................508
Component Inspection ..........................................513
ASCD INDICATOR ..................................................514
Component Description ........................................514
CONSULT-II Reference Value in Data Monitor Mode
.514