2003 NISSAN X-TRAIL diagram

EC-14 Crankshaft Position Sensor .................................1204
Camshaft Position Sensor ...................................1204
YD (WITHOUT EURO-OBD)
INDEX FOR DTC ....................................................1205
Alphabetical Index ...............................................1205
DTC No. Index .....................................................1206
PRECAUTIONS ......................................................1209
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ..............................................................1209
On Board Diagnostic (OBD) System of Engine ...1209
Precautions ..........................................................1209
Wiring Diagrams and Trouble Diagnosis .............1212
PREPARATION ......................................................1213
Special Service Tools ..........................................1213
Commercial Service Tools ...................................1213
ENGINE CONTROL SYSTEM ...............................1214
System Diagram ..................................................1214
Vacuum Hose Drawing ........................................1215
System Chart .......................................................1216
Fuel Injection Control System ..............................1216
Fuel Injection Timing Control System ..................1218
Air Conditioning Cut Control ................................1218
Fuel Cut Control (At No Load & High Engine Speed) 1218
Crankcase Ventilation System .............................1219
CAN Communication ...........................................1219
BASIC SERVICE PROCEDURE ............................1221
Fuel Filter .............................................................1221
Fuel Pump Learning Value Clearing ....................1221
ON BOARD DIAGNOSTIC (OBD) SYSTEM .........1223
DTC and MI Detection Logic ...............................1223
Diagnostic Trouble Code (DTC) ..........................1223
Freeze Frame Data ..............................................1223
NATS (Nissan Anti-theft System) .........................1224
Malfunction Indicator (MI) ....................................1224
TROUBLE DIAGNOSIS .........................................1227
Trouble Diagnosis Introduction ............................1227
DTC Inspection Priority Chart ..............................1230
Basic Inspection ..................................................1231
Symptom Matrix Chart .........................................1235
Engine Control Component Parts Location .........1239
Circuit Diagram ....................................................1243
ECM Harness Connector Terminal Layout ..........1245
ECM Terminals And Reference Value .................1245
CONSULT-II Function ..........................................1251
CONSULT-II Reference Value in Data Monitor Mode
1257
Major Sensor Reference Graph in Data Monitor
Mode ....................................................................1259
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ......................................................................1260
Description ...........................................................1260
Diagnostic Procedure ..........................................1260
MAIN POWER SUPPLY AND GROUND CIRCUIT 1261
ECM Terminals and Reference Value ..................1261
Wiring Diagram ....................................................1262
Diagnostic Procedure ..........................................1263Component Inspection .........................................1266
Ground Inspection ................................................1267
DTC U1000 CAN COMMUNICATION LINE ...........1268
Description ...........................................................1268
On Board Diagnosis Logic ...................................1268
DTC Confirmation Procedure ...............................1268
Wiring Diagram ....................................................1269
Diagnostic Procedure ...........................................1270
DTC P0016 CKP - CMP CORRELATION ..............1271
On Board Diagnosis Logic ...................................1271
DTC Confirmation Procedure ...............................1271
Diagnostic Procedure ...........................................1271
DTC P0088 FUEL SYSTEM ...................................1273
On Board Diagnosis Logic ...................................1273
DTC Confirmation Procedure ...............................1273
Diagnostic Procedure ...........................................1273
Removal and Installation ......................................1274
DTC P0089 FUEL PUMP .......................................1275
On Board Diagnosis Logic ...................................1275
DTC Confirmation Procedure ...............................1275
Diagnostic Procedure ...........................................1275
Removal and Installation ......................................1276
DTC P0093 FUEL SYSTEM ...................................1277
On Board Diagnosis Logic ...................................1277
DTC Confirmation Procedure ...............................1277
Diagnostic Procedure ...........................................1277
Component Inspection .........................................1278
Removal and Installation ......................................1279
DTC P0102, P0103 MAF SENSOR ........................1280
Component Description .......................................1280
CONSULT-II Reference Value in Data Monitor Mode
1280
ECM Terminals and Reference Value ..................1280
On Board Diagnosis Logic ...................................1280
DTC Confirmation Procedure ...............................1280
Wiring Diagram ....................................................1282
Diagnostic Procedure ...........................................1283
Component Inspection .........................................1285
Removal and Installation ......................................1285
DTC P0112, P0113 IAT SENSOR ...........................1286
Component Description .......................................1286
On Board Diagnosis Logic ...................................1286
DTC Confirmation Procedure ...............................1286
Wiring Diagram ....................................................1287
Diagnostic Procedure ...........................................1288
Component Inspection .........................................1290
Removal and Installation ......................................1290
DTC P0117, P0118 ECT SENSOR .........................1291
Description ...........................................................1291
On Board Diagnosis Logic ...................................1291
DTC Confirmation Procedure ...............................1291
Wiring Diagram ....................................................1293
Diagnostic Procedure ...........................................1294
Component Inspection .........................................1296
Removal and Installation ......................................1296
DTC P0122, P0123 APP SENSOR ........................1297
Description ...........................................................1297
CONSULT-II Reference Value in Data Monitor Mode
1297

EC-15
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ECA
ECM Terminals and Reference Value .................1297
On Board Diagnosis Logic ..................................1298
DTC Confirmation Procedure ..............................1298
Wiring Diagram ...................................................1299
Diagnostic Procedure ..........................................1300
Component Inspection ........................................1302
Removal and Installation .....................................1302
DTC P0182, P0183 FUEL PUMP TEMPERATURE
SENSOR ................................................................1303
Description ..........................................................1303
CONSULT-II Reference Value in Data Monitor Mode
1303
ECM Terminals and Reference Value .................1303
On Board Diagnosis Logic ..................................1303
DTC Confirmation Procedure ..............................1303
Wiring Diagram ...................................................1304
Diagnostic Procedure ..........................................1305
Removal and Installation .....................................1306
DTC P0192, P0193 FRP SENSOR ........................1307
Description ..........................................................1307
CONSULT-II Reference Value in Data Monitor Mode
1307
ECM Terminals and Reference Value .................1307
On Board Diagnosis Logic ..................................1307
DTC Confirmation Procedure ..............................1308
Wiring Diagram ...................................................1309
Diagnostic Procedure ..........................................1310
Component Inspection ........................................1312
Removal and Installation .....................................1312
DTC P0200 FUEL INJECTOR ...............................1313
On Board Diagnosis Logic ..................................1313
DTC Confirmation Procedure ..............................1313
Diagnostic Procedure ..........................................1313
DTC P0201 - P0204 FUEL INJECTOR .................1314
Component Description .......................................1314
CONSULT-II Reference Value in Data Monitor Mode
1314
ECM Terminals and Reference Value .................1314
On Board Diagnosis Logic ..................................1315
DTC Confirmation Procedure ..............................1316
Wiring Diagram ...................................................1317
Diagnostic Procedure ..........................................1318
Component Inspection ........................................1319
Removal and Installation .....................................1319
DTC P0217 ENGINE OVER TEMPERATURE ......1320
System Description .............................................1320
CONSULT-II Reference Value in Data Monitor Mode
1320
ECM Terminals and Reference Value .................1320
On Board Diagnosis Logic ..................................1321
Overall Function Check .......................................1321
Wiring Diagram ...................................................1322
Diagnostic Procedure ..........................................1323
Main 12 Causes of Overheating ..........................1330
Component Inspection ........................................1331
DTC P0222, P0223 APP SENSOR .......................1332
Description ..........................................................1332
CONSULT-II Reference Value in Data Monitor Mode
1332ECM Terminals and Reference Value ..................1332
On Board Diagnosis Logic ...................................1333
DTC Confirmation Procedure ..............................1333
Wiring Diagram ....................................................1334
Diagnostic Procedure ..........................................1335
Component Inspection .........................................1337
Removal and Installation .....................................1337
DTC P0234 TC SYSTEM .......................................1338
Description ...........................................................1338
ECM Terminal and Reference Value ...................1338
On Board Diagnosis Logic ...................................1339
Overall Function Check .......................................1339
Wiring Diagram ....................................................1340
Diagnostic Procedure ..........................................1341
Component Inspection .........................................1343
DTC P0237, P0238 TC BOOST SENSOR .............1345
Component Description .......................................1345
CONSULT-II Reference Value in Data Monitor Mode
1345
ECM Terminals and Reference Value ..................1345
On Board Diagnosis Logic ...................................1346
DTC Confirmation Procedure ..............................1346
Wiring Diagram ....................................................1347
Diagnostic Procedure ..........................................1348
Component Inspection .........................................1350
Removal and Installation .....................................1350
DTC P0335 CKP SENSOR ....................................1351
Description ...........................................................1351
CONSULT-II Reference Value in Data Monitor Mode
1351
ECM Terminals and Reference Value ..................1351
On Board Diagnosis Logic ...................................1352
DTC Confirmation Procedure ..............................1352
Wiring Diagram ....................................................1353
Diagnostic Procedure ..........................................1354
Component Inspection .........................................1356
Removal and Installation .....................................1356
DTC P0336 CKP SENSOR ....................................1357
Description ...........................................................1357
CONSULT-II Reference Value in Data Monitor Mode
1357
ECM Terminals and Reference Value ..................1357
On Board Diagnosis Logic ...................................1358
DTC Confirmation Procedure ..............................1358
Wiring Diagram ....................................................1359
Diagnostic Procedure ..........................................1360
Component Inspection .........................................1362
Removal and Installation .....................................1362
DTC P0340 CMP SENSOR ....................................1363
Description ...........................................................1363
ECM Terminals and Reference Value ..................1363
On Board Diagnosis Logic ...................................1363
DTC Confirmation Procedure ..............................1364
Wiring Diagram ....................................................1365
Diagnostic Procedure ..........................................1366
Component Inspection .........................................1368
Removal and Installation .....................................1368
DTC P0341 CMP SENSOR ....................................1369
Description ...........................................................1369

EC-16 ECM Terminals and Reference Value ..................1369
On Board Diagnosis Logic ...................................1369
DTC Confirmation Procedure ..............................1370
Wiring Diagram ....................................................1371
Diagnostic Procedure ..........................................1372
Component Inspection .........................................1375
Removal and Installation .....................................1375
DTC P0563 BATTERY VOLTAGE .........................1376
On Board Diagnosis Logic ...................................1376
DTC Confirmation Procedure ..............................1376
Diagnostic Procedure ..........................................1376
DTC P0605 ECM ....................................................1378
Description ...........................................................1378
On Board Diagnosis Logic ...................................1378
DTC Confirmation Procedure ..............................1378
Diagnostic Procedure ..........................................1378
DTC P0606 ECM ....................................................1380
Description ...........................................................1380
On Board Diagnosis Logic ...................................1380
DTC Confirmation Procedure ..............................1380
Diagnostic Procedure ..........................................1380
DTC P0628, P0629 FUEL PUMP ...........................1382
Description ...........................................................1382
CONSULT-II Reference Value in Data Monitor Mode
1382
ECM Terminals and Reference Value ..................1382
On Board Diagnosis Logic ...................................1383
DTC Confirmation Procedure ..............................1383
Wiring Diagram ....................................................1384
Diagnostic Procedure ..........................................1385
Component Inspection .........................................1386
Removal and Installation .....................................1386
DTC P0642, P0643 SENSOR POWER SUPPLY ...1387
Description ...........................................................1387
CONSULT-II Reference Value in Data Monitor Mode
1387
ECM Terminals and Reference Value ..................1387
On Board Diagnosis Logic ...................................1388
DTC Confirmation Procedure ..............................1388
Wiring Diagram ....................................................1389
Diagnostic Procedure ..........................................1390
Component Inspection .........................................1391
Removal and Installation .....................................1392
DTC P0652, P0653 SENSOR POWER SUPPLY ...1393
Description ...........................................................1393
CONSULT-II Reference Value in Data Monitor Mode
1393
ECM Terminals and Reference Value ..................1393
On Board Diagnosis Logic ...................................1394
DTC Confirmation Procedure ..............................1394
Wiring Diagram ....................................................1395
Diagnostic Procedure ..........................................1396
Component Inspection .........................................1397
Removal and Installation .....................................1398
DTC P0686 ECM RELAY .......................................1399
ECM Terminals and Reference valve ..................1399
On Board Diagnosis Logic ...................................1399
DTC Confirmation Procedure ..............................1399
Wiring Diagram ....................................................1400Diagnostic Procedure ...........................................1401
Component Inspection .........................................1401
DTC P1211 TCS CONTROL UNIT .........................1402
Description ...........................................................1402
On Board Diagnosis Logic ...................................1402
DTC Confirmation Procedure ...............................1402
Diagnostic Procedure ...........................................1402
DTC P1212 TCS COMMUNICATION LINE ............1403
Description ...........................................................1403
On Board Diagnosis Logic ...................................1403
DTC Confirmation Procedure ...............................1403
Diagnostic Procedure ...........................................1403
DTC P1260 - P1267 FUEL INJECTOR ADJUST-
MENT RESISTOR ...................................................1404
Description ...........................................................1404
ECM Terminals and Reference Value ..................1404
On Board Diagnosis Logic ...................................1404
DTC Confirmation Procedure ...............................1405
Wiring Diagram ....................................................1406
Diagnostic Procedure ...........................................1407
Component Inspection .........................................1408
Removal and Installation ......................................1409
DTC P1268 - P1271 FUEL INJECTOR ..................1410
Component Description .......................................1410
CONSULT-II Reference Value in Data Monitor Mode
1410
ECM Terminals and Reference Value ..................1410
On Board Diagnosis Logic ...................................1411
DTC Confirmation Procedure ...............................1412
Wiring Diagram ....................................................1413
Diagnostic Procedure ...........................................1414
Component Inspection .........................................1415
Removal and Installation ......................................1415
DTC P1272 FUEL PUMP .......................................1416
Description ...........................................................1416
CONSULT-II Reference Value in Data Monitor Mode
1416
ECM Terminals and Reference Value ..................1416
On Board Diagnosis Logic ...................................1417
DTC Confirmation Procedure ...............................1417
Wiring Diagram ....................................................1418
Diagnostic Procedure ...........................................1419
Component Inspection .........................................1420
Removal and Installation ......................................1420
DTC P1273 FUEL PUMP .......................................1422
Description ...........................................................1422
CONSULT-II Reference Value in Data Monitor Mode
1422
ECM Terminals and Reference Value ..................1422
On Board Diagnosis Logic ...................................1423
DTC Confirmation Procedure ...............................1423
Wiring Diagram ....................................................1424
Diagnostic Procedure ...........................................1425
Component Inspection .........................................1426
Removal and Installation ......................................1426
DTC P1274 FUEL PUMP .......................................1427
Description ...........................................................1427
CONSULT-II Reference Value in Data Monitor Mode
1427

EC-17
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ECM Terminals and Reference Value .................1427
On Board Diagnosis Logic ..................................1428
DTC Confirmation Procedure ..............................1428
Wiring Diagram ...................................................1429
Diagnostic Procedure ..........................................1430
Component Inspection ........................................1431
Removal and Installation .....................................1431
DTC P1275 FUEL PUMP .......................................1432
Description ..........................................................1432
CONSULT-II Reference Value in Data Monitor Mode
1432
ECM Terminals and Reference Value .................1432
On Board Diagnosis Logic ..................................1433
DTC Confirmation Procedure ..............................1433
Wiring Diagram ...................................................1434
Diagnostic Procedure ..........................................1435
Component Inspection ........................................1436
Removal and Installation .....................................1436
DTC P2135 APP SENSOR ....................................1437
Description ..........................................................1437
CONSULT-II Reference Value in Data Monitor Mode
1437
ECM Terminals and Reference Value .................1437
On Board Diagnosis Logic ..................................1438
DTC Confirmation Procedure ..............................1438
Wiring Diagram ...................................................1439
Diagnostic Procedure ..........................................1440
Component Inspection ........................................1442
Removal and Installation .....................................1442
DTC P2146, P2149 FUEL INJECTOR POWER SUP-
PLY .........................................................................1443
Component Description .......................................1443
CONSULT-II Reference Value in Data Monitor Mode
1443
ECM Terminals and Reference Value .................1443
On Board Diagnosis Logic ..................................1444
DTC Confirmation Procedure ..............................1445
Wiring Diagram ...................................................1446
Diagnostic Procedure ..........................................1447
DTC P2147, P2148 FUEL INJECTOR CIRCUIT ...1448
Component Description .......................................1448
CONSULT-II Reference Value in Data Monitor Mode
1448
ECM Terminals and Reference Value .................1448
On Board Diagnosis Logic ..................................1449
DTC Confirmation Procedure ..............................1449
Wiring Diagram ...................................................1451
Diagnostic Procedure ..........................................1452
Component Inspection ........................................1454
Removal and Installation .....................................1454
DTC P2228, P2229 BARO SENSOR ....................1455
Description ..........................................................1455
On Board Diagnosis Logic ..................................1455
DTC Confirmation Procedure ..............................1455
Diagnostic Procedure ..........................................1455
GLOW CONTROL SYSTEM .................................1457
Description ..........................................................1457
Wiring Diagram ...................................................1458
Diagnostic Procedure ..........................................1460Component Inspection .........................................1464
Removal and Installation .....................................1464
EGR VOLUME CONTROL SYSTEM .....................1465
Description ...........................................................1465
CONSULT-II Reference Value in Data Monitor Mode
1466
ECM Terminals and Reference Value ..................1466
Wiring Diagram ....................................................1467
Diagnostic Procedure ..........................................1468
Component Inspection .........................................1469
Removal and Installation .....................................1470
TC BOOST CONTROL SOLENOID VALVE ..........1471
Description ...........................................................1471
ECM Terminals and Reference Value ..................1471
Wiring Diagram ....................................................1472
Diagnostic Procedure ..........................................1473
Component Inspection .........................................1474
BRAKE SWITCH ....................................................1475
Description ...........................................................1475
CONSULT-II Reference Value in Data Monitor Mode
1475
ECM Terminals and Reference Value ..................1475
Wiring Diagram ....................................................1476
Diagnostic Procedure ..........................................1477
Component Inspection .........................................1478
PNP SWITCH .........................................................1479
Description ...........................................................1479
CONSULT-II Reference Value in Data Monitor Mode
1479
ECM Terminals and Reference Value ..................1479
Wiring Diagram ....................................................1480
Diagnostic Procedure ..........................................1481
PSP SWITCH .........................................................1483
Component Description .......................................1483
CONSULT-II Reference Value in Data Monitor Mode
1483
ECM Terminals and Reference Value ..................1483
Wiring Diagram ....................................................1484
Diagnostic Procedure ..........................................1485
Component Inspection .........................................1486
Removal and Installation .....................................1486
FUEL TRANSPORT PUMP ...................................1487
Description ...........................................................1487
ECM Terminals and Reference Value ..................1488
Wiring Diagram ....................................................1489
Diagnostic Procedure ..........................................1491
Component Inspection .........................................1494
Removal and Installation .....................................1495
START SIGNAL .....................................................1496
Wiring Diagram ....................................................1496
Diagnostic Procedure ..........................................1497
MI & DATA LINK CONNECTORS ..........................1498
Wiring Diagram ....................................................1498
SERVICE DATA AND SPECIFICATIONS (SDS) ...1500
General Specifications .........................................1500
Mass Air Flow Sensor ..........................................1500
Engine Coolant Temperature Sensor ..................1500
Fuel Rail Pressure Sensor ...................................1500
Glow Plug ............................................................1500

PRECAUTIONS
EC-27
[QR (WITH EURO-OBD)]
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EC


Do not depress accelerator pedal when starting.

Immediately after starting, do not rev up engine unneces-
sarily.

Do not rev up engine just prior to shutdown.

When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control units.
–Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.
–Be sure to ground the radio to vehicle body.
Wiring Diagrams and Trouble DiagnosisEBS010L3
When you read wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams"

PG-2, "POWER SUPPLY ROUTING" for power distribution circuit
When you perform trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident"
SEF709Y
SEF708Y

EC-30
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

ENGINE CONTROL SYSTEMPFP:23710
System DiagramEBS010L6
QR20DE ENGINE MODELS
PBIB2455E

ENGINE CONTROL SYSTEM
EC-39
[QR (WITH EURO-OBD)]
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M/T MODELS WITHOUT ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6458E
Signals ECMABS actuator and
electric unit (con-
trol unit)4WD control unit Combination meter
Stop lamp switch signal T R
Engine speed signal T R R
Engine coolant temperature signal T R
Accelerator pedal position signal T R
A/C compressor feedback signal T R
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signal T R
Parking brake switch signalRT
MI signal T R

EC-40
[QR (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

A/T MODELS WITHOUT ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6457E
Signals ECM TCMABS actuator
and electric unit
(control unit)4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R
Overdrive control switch signal R T
O/D OFF indicator signal T R
Closed throttle position signal T R
Wide open throttle position signal T R
Engine speed signal T R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R
Output shaft revolution signal R T
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Engine A/T integrated control signalTR
RT
A/T self-diagnosis signal R T