2003 NISSAN X-TRAIL FL fuel system
[x] Cancel search: FL fuel systemPage 1058 of 3066
DI-4
COMBINATION METERS (LHD MODELS)
COMBINATION METERS (LHD MODELS)
PFP:24810
System DescriptionEKS002Z7
UNIFIED CONTROL METER
lSpeedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
lDigital meter is adopted for odo/trip meter.*
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
lOdo/trip meter segment can be checked in diagnosis mode.
lMeter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER
NOTE:
Turn ignition switch to the “ON” position to operate odo/trip meter.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
lthrough 10A fuse [No. 28, located in the fuse block (J/B)]
lto combination meter terminal 45.
With the ignition switch in the ON or START position, power is supplied
lthrough 10A fuse [No. 11, located in the fuse block (J/B)]
lto combination meter terminal 46.
Ground is supplied
lthrough body grounds M27 and M70
lto combination meter terminal 47.
WATER TEMPERATURE GAUGE
Gasoline engine models
The water temperature gauge indicates the engine coolant temperature. The reading on the gauge is received
engine coolant temperature signal from ECM. ECM is detected by water temperature sensor.
The water temperature gauge is received by a signal
lfrom ECM terminal 32
lto combination meter terminal 55.
The needle on the gauge moves from “C” to “H”
SKIA0896E
Page 1069 of 3066
COMBINATION METERS (LHD MODELS)
DI-15
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4.CHECK VEHICLE SPEED INPUT SIGNAL
1. Connect 4WD/ABS control unit (without EPS)or 4WD control
unit (with EPS) connector.
2. Lift up drive wheels.
3. Start engine.
4. Check voltage signal between combination meter harness con-
nector M46 terminal 52 (R/B) and ground.
OK or NG?
OK >> Replace combination meter.
NG >> Check ABS system.
Inspection/Fuel Level Sensor UnitEKS002ZI
FUEL LEVEL SENSOR UNIT
The following symptoms do not indicate a malfunction.
lDepending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the pointer
may fluctuate.
lIf the vehicle is fueled with the ignition switch ON, the pointer will move slowly.
LOW-FUEL WARNING LAMP
Depending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the warning lamp
ON timing may be changed.
1.DIAGNOSIS MODE INSPECTION
Preform the combination meter diagnosis mode. Refer toDI-10, "
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode".
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2.HARNESS CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Check combination meter, fuel level sensor unit and terminals (meter-side, module-side, and harness-
side) for poor connection and bend.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace terminals or connectors.52 (R/B) – ground
SKIA0990E
Page 1076 of 3066
DI-22
COMBINATION METERS (RHD MODELS)
COMBINATION METERS (RHD MODELS)
PFP:24810
System DescriptionEKS0030H
UNIFIED CONTROL METER
lSpeedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
lDigital meter is adopted for odo/trip meter.*
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
lOdo/trip meter segment can be checked in diagnosis mode.
lMeter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER
NOTE:
Turn ignition switch to the “ON” position to operate odo/trip meter.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
lthrough 10A fuse [No. 28, located in the fuse block (J/B)]
lto combination meter terminal 58.
With the ignition switch in the ON or START position, power is supplied
lthrough 10A fuse [No. 11, located in the fuse block (J/B)]
lto combination meter terminal 59.
Ground is supplied
lthrough body grounds M27 and M70
lto combination meter terminal 60.
WATER TEMPERATURE GAUGE
Gasoline engine models
The water temperature gauge indicates the engine coolant temperature. The reading on the gauge is received
engine coolant temperature signal from ECM. ECM is detected by water temperature sensor.
The water temperature gauge is received by a signal
lfrom ECM terminal 32
lto combination meter terminal 66.
The needle on the gauge moves from “C” to “H”
SKIA0896E
Page 1087 of 3066
COMBINATION METERS (RHD MODELS)
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3.CHECK 4WD/ABS CONTROL UNIT OUTPUT
1. Connect combination meter connector.
2. Check voltage between combination meter harness connector
M45 terminal 42 (R/B) and ground.
OK or NG ?
OK >> GO TO 4.
NG >> Replace combination meter.
4.CHECK VEHICLE SPEED INPUT SIGNAL
1. Connect 4WD/ABS control unit connector(without ESP) or 4WD
control unit (with ESP).
2. Lift up drive wheels.
3. Start engine.
4. Check voltage signal between combination meter harness con-
nector M45 terminal 42 (R/B) and ground.
OK or NG ?
OK >> Replace combination meter.
NG >> Check ABS system.
Inspection/Fuel Level Sensor UnitEKS0030T
FUEL LEVEL SENSOR UNIT
The following symptoms do not indicate a malfunction.
lDepending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the pointer
may fluctuate.
lIf the vehicle is fueled with the ignition switch ON, the pointer will move slowly.
LOW-FUEL WARNING LAMP
Depending on vehicle posture or driving circumstance, the fuel level in the tank varies, and the warning lamp
ON timing may be changed.
1.DIAGNOSIS MODE INSPECTION
Preform the combination meter diagnosis mode. Refer toDI-28, "
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode".
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2.HARNESS CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Check combination meter, fuel level sensor unit and terminals (meter-side, module-side, and harness-
side) for poor connection and bend.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace terminals or connectors.Apporox. 9V
SKIA1026E
42 (R/B) – ground
SKIA0990E
Page 1115 of 3066
EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION
A
EC
ENGINE CONTROL SYSTEM
QR (WITH EURO-OBD)
INDEX FOR DTC ...................................................... 12
Alphabetical Index .................................................. 12
DTC No. Index ....................................................... 14
PRECAUTIONS ........................................................ 16
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 16
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 16
Precaution .............................................................. 16
Wiring Diagrams and Trouble Diagnosis ................ 19
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 20
ENGINE CONTROL SYSTEM .................................. 22
System Diagram ..................................................... 22
Vacuum Hose Drawing ........................................... 23
System Chart ......................................................... 24
Multiport Fuel Injection (MFI) System .................... 24
Electronic Ignition (EI) System ............................... 27
Air Conditioning Cut Control ................................... 27
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 28
CAN communication .............................................. 28
BASIC SERVICE PROCEDURE .............................. 30
Idle Speed and Ignition Timing Check .................... 30
Throttle Valve Closed Position Learning ................ 31
Accelerator Pedal Released Position Learning ...... 31
Idle Air Volume Learning ........................................ 31
Fuel Pressure Check .............................................. 34
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 36
Introduction ............................................................ 36
Two Trip Detection Logic ........................................ 36
Emission-related Diagnostic Information ................ 37
NATS (Nissan Anti-theft System) ........................... 48
Malfunction Indicator (MI) ....................................... 48
OBD System Operation Chart ................................ 51
TROUBLE DIAGNOSIS ............................................ 57
Trouble Diagnosis Introduction ............................... 57DTC Inspection Priority Chart ................................. 61
Fail-safe Chart ........................................................ 62
Basic Inspection ..................................................... 64
Symptom Matrix Chart ............................................ 69
Engine Control Component Parts Location ............ 73
Circuit Diagram ....................................................... 77
ECM Harness Connector Terminal Layout ............. 79
ECM Terminals and Reference Value ..................... 79
CONSULT-II Function ............................................. 86
Generic Scan Tool (GST) Function ......................... 96
CONSULT-II Reference Value in Data Monitor ....... 97
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................100
TROUBLE DIAGNOSIS - SPECIFICATION VALUE. 103
Description ............................................................103
Testing Condition ..................................................103
Inspection Procedure ............................................103
Diagnostic Procedure ...........................................104
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................107
Description ............................................................107
Diagnostic Procedure ...........................................107
POWER SUPPLY CIRCUIT FOR ECM ...................108
Wiring Diagram .....................................................108
ECM Terminals and Reference Value ...................109
Diagnostic Procedure ...........................................109
Component Inspection ..........................................113
DTC U1000 CAN COMMUNICATION LINE ............114
Description ............................................................114
On Board Diagnosis Logic ....................................114
DTC Confirmation Procedure ...............................114
Wiring Diagram .....................................................115
Diagnostic Procedure ...........................................116
DTC P0011 IVT CONTROL .....................................117
Description ............................................................117
CONSULT-II Reference Value in Data Monitor Mode
.117
ECM Terminals and Reference Value ...................117
On Board Diagnosis Logic ....................................118
Page 1117 of 3066
EC-3
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ECA Wiring Diagram .................................................... 183
Diagnostic Procedure ........................................... 184
Component Inspection ......................................... 185
Removal and Installation ...................................... 186
DTC P0139 HO2S2 ................................................. 187
Component Description ........................................ 187
CONSULT-II Reference Value in Data Monitor Mode
. 187
ECM Terminals and Reference Value .................. 187
On Board Diagnosis Logic ................................... 187
DTC Confirmation Procedure ............................... 188
Overall Function Check ........................................ 189
Wiring Diagram .................................................... 190
Diagnostic Procedure ........................................... 191
Component Inspection ......................................... 192
Removal and Installation ...................................... 193
DTC P0171 FUEL INJECTION SYSTEM FUNCTION. 194
On Board Diagnosis Logic ................................... 194
DTC Confirmation Procedure ............................... 194
Wiring Diagram .................................................... 196
Diagnostic Procedure ........................................... 197
DTC P0172 FUEL INJECTION SYSTEM FUNCTION. 200
On Board Diagnosis Logic ................................... 200
DTC Confirmation Procedure ............................... 200
Wiring Diagram .................................................... 202
Diagnostic Procedure ........................................... 203
DTC P0300 - P0304 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 4 CYLINDER MISFIRE ..................... 206
On Board Diagnosis Logic ................................... 206
DTC Confirmation Procedure ............................... 206
Diagnostic Procedure ........................................... 207
DTC P0327, P0328 KS ........................................... 212
Component Description ........................................ 212
ECM Terminals and Reference Value .................. 212
On Board Diagnosis Logic ................................... 212
DTC Confirmation Procedure ............................... 212
Wiring Diagram .................................................... 214
Diagnostic Procedure ........................................... 215
Component Inspection ......................................... 216
Removal and Installation ...................................... 216
DTC P0335 CKP SENSOR (POS) .......................... 217
Component Description ........................................ 217
CONSULT-II Reference Value in Data Monitor Mode
. 217
ECM Terminals and Reference Value .................. 217
On Board Diagnosis Logic ................................... 218
DTC Confirmation Procedure ............................... 218
Wiring Diagram .................................................... 219
Diagnostic Procedure ........................................... 220
Component Inspection ......................................... 221
Removal and Installation ...................................... 222
DTC P0340 CMP SENSOR (PHASE) ..................... 223
Component Description ........................................ 223
ECM Terminals and Reference Value .................. 223
On Board Diagnosis Logic ................................... 223
DTC Confirmation Procedure ............................... 224
Wiring Diagram .................................................... 225
Diagnostic Procedure ........................................... 226Component Inspection ..........................................228
Removal and Installation ......................................228
DTC P0420 THREE WAY CATALYST FUNCTION . 229
On Board Diagnosis Logic ....................................229
DTC Confirmation Procedure ...............................229
Overall Function Check ........................................230
Diagnostic Procedure ...........................................231
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ......................233
Description ............................................................233
CONSULT-II Reference Value in Data Monitor Mode
.233
ECM Terminals and Reference Value ...................233
On Board Diagnosis Logic ....................................234
DTC Confirmation Procedure ...............................234
Wiring Diagram .....................................................235
Diagnostic Procedure ...........................................236
Component Inspection ..........................................237
Removal and Installation ......................................238
DTC P0500 VSS ......................................................239
Component Description ........................................239
ECM Terminals and Reference Value ...................239
On Board Diagnosis Logic ....................................239
DTC Confirmation Procedure ...............................239
Overall Function Check ........................................240
Wiring Diagram .....................................................241
Diagnostic Procedure ...........................................243
DTC P0550 PSP SENSOR .....................................244
Component Description ........................................244
CONSULT-II Reference Value in Data Monitor Mode
.244
ECM Terminals and Reference Value ...................244
On Board Diagnosis Logic ....................................244
DTC Confirmation Procedure ...............................244
Wiring Diagram .....................................................246
Diagnostic Procedure ...........................................247
Component Inspection ..........................................248
DTC P0605 ECM .....................................................249
Component Description ........................................249
On Board Diagnosis Logic ....................................249
DTC Confirmation Procedure ...............................249
Diagnostic Procedure ...........................................251
DTC P0650 MI .........................................................252
Component Description ........................................252
On Board Diagnosis Logic ....................................252
DTC Confirmation Procedure ...............................252
Wiring Diagram .....................................................253
Diagnostic Procedure ...........................................254
DTC P1065 ECM POWER SUPPLY .......................256
Component Description ........................................256
On Board Diagnosis Logic ....................................256
DTC Confirmation Procedure ...............................256
Wiring Diagram .....................................................257
Diagnostic Procedure ...........................................258
DTC P1102 MAF SENSOR .....................................260
Component Description ........................................260
CONSULT-II Reference Value in Data Monitor Mode
.260
Page 1119 of 3066
EC-5
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ECA DTC P1805 BRAKE SWITCH ................................ 329
Description ........................................................... 329
CONSULT-II Reference Value in Data Monitor Mode
. 329
ECM Terminals and Reference Value .................. 329
On Board Diagnosis Logic ................................... 329
DTC Confirmation Procedure ............................... 329
Wiring Diagram .................................................... 330
Diagnostic Procedure ........................................... 331
Component Inspection ......................................... 332
IGNITION SIGNAL .................................................. 334
Component Description ........................................ 334
ECM Terminals and Reference Value .................. 334
Wiring Diagram .................................................... 335
Diagnostic Procedure ........................................... 337
Component Inspection ......................................... 341
Removal and Installation ...................................... 342
INJECTOR CIRCUIT ............................................... 343
Component Description ........................................ 343
CONSULT-II Reference Value in Data Monitor Mode
. 343
ECM Terminals and Reference Value .................. 343
Wiring Diagram .................................................... 344
Diagnostic Procedure ........................................... 345
Component Inspection ......................................... 347
Removal and Installation ...................................... 347
START SIGNAL ...................................................... 348
CONSULT-II Reference Value in Data Monitor Mode
. 348
ECM Terminals and Reference Value .................. 348
Wiring Diagram .................................................... 349
Diagnostic Procedure ........................................... 350
FUEL PUMP CIRCUIT ............................................ 352
Description ........................................................... 352
CONSULT-II Reference Value in Data Monitor Mode
. 352
ECM Terminals and Reference Value .................. 352
Wiring Diagram .................................................... 354
Diagnostic Procedure ........................................... 355
Component Inspection ......................................... 357
Removal and Installation ...................................... 358
REFRIGERANT PRESSURE SENSOR ................. 359
Component Description ........................................ 359
ECM Terminals and Reference Value .................. 359
Wiring Diagram .................................................... 360
Diagnostic Procedure ........................................... 361
Removal and Installation ...................................... 362
ELECTRICAL LOAD SIGNAL ................................ 363
CONSULT-II Reference Value in Data Monitor Mode
. 363
ECM Terminals and Reference Value .................. 363
Wiring Diagram .................................................... 364
Diagnostic Procedure ........................................... 366
DATA LINK CONNECTOR ..................................... 371
Wiring Diagram .................................................... 371
EVAPORATIVE EMISSION SYSTEM ..................... 372
Description ........................................................... 372
Component Inspection ......................................... 374POSITIVE CRANKCASE VENTILATION ...............375
Description ............................................................375
Component Inspection ..........................................375
SERVICE DATA AND SPECIFICATIONS (SDS) ....377
Fuel Pressure .......................................................377
Idle Speed and Ignition Timing .............................377
Calculated Load Value ..........................................377
Mass Air Flow Sensor ...........................................377
Intake Air Temperature Sensor .............................377
Engine Coolant Temperature Sensor ...................377
Heated Oxygen Sensor 1 Heater .........................377
Heated Oxygen sensor 2 Heater ..........................377
Crankshaft Position Sensor (POS) .......................377
Camshaft Position Sensor (PHASE) ....................377
Throttle Control Motor ...........................................378
Injector ..................................................................378
Fuel Pump ............................................................378
QR (WITHOUT EURO-OBD)
INDEX FOR DTC .....................................................379
Alphabetical Index ................................................379
DTC No. Index ......................................................380
PRECAUTIONS ......................................................381
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................381
On Board Diagnostic (OBD) System of Engine and
A/T ........................................................................381
Precaution ............................................................381
Wiring Diagrams and Trouble Diagnosis ..............384
PREPARATION .......................................................385
Special Service Tools ...........................................385
Commercial Service Tools ....................................385
ENGINE CONTROL SYSTEM ................................387
System Diagram ...................................................387
Vacuum Hose Drawing .........................................388
System Chart ........................................................389
Multiport Fuel Injection (MFI) System ...................389
Electronic Ignition (EI) System .............................392
Air Conditioning Cut Control .................................392
Fuel Cut Control (at No Load and High Engine
Speed) ..................................................................393
CAN communication .............................................393
BASIC SERVICE PROCEDURE .............................395
Idle Speed and Ignition Timing Check ..................395
Throttle Valve Closed Position Learning ...............396
Accelerator Pedal Released Position Learning ....396
Idle Air Volume Learning ......................................396
Fuel Pressure Check ............................................399
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..........401
Introduction ...........................................................401
Two Trip Detection Logic ......................................401
Emission-related Diagnostic Information ..............401
NATS (Nissan Anti-theft System) .........................403
Malfunction Indicator (MI) .....................................404
TROUBLE DIAGNOSIS ..........................................407
Trouble Diagnosis Introduction .............................407
Page 1122 of 3066
EC-8
Component Inspection ..........................................584
Removal and Installation ......................................586
HO2S2 .....................................................................587
Component Description ........................................587
CONSULT-II Reference Value in Data Monitor Mode
.587
ECM Terminals and Reference Value ...................587
Wiring Diagram .....................................................588
Diagnostic Procedure ...........................................589
Component Inspection ..........................................590
Removal and Installation ......................................591
IGNITION SIGNAL ..................................................592
Component Description ........................................592
ECM Terminals and Reference Value ...................592
Wiring Diagram .....................................................593
Diagnostic Procedure ...........................................595
Component Inspection ..........................................599
Removal and Installation ......................................600
EVAP CANISTER PURGE VOLUME CONTROL
SOLENOID VALVE .................................................601
Description ............................................................601
CONSULT-II Reference Value in Data Monitor Mode
.601
ECM Terminals and Reference Value ...................601
Wiring Diagram .....................................................603
Diagnostic Procedure ...........................................604
Component Inspection ..........................................607
Removal and Installation ......................................607
IVT CONTROL SOLENOID VALVE ........................608
Description ............................................................608
CONSULT-II Reference Value in Data Monitor Mode
.608
ECM Terminals and Reference Value ...................609
Wiring Diagram .....................................................610
Diagnostic Procedure ...........................................611
Component Inspection ..........................................613
Removal and Installation ......................................613
PNP SWITCH ..........................................................614
Component Description ........................................614
CONSULT-II Reference Value in Data Monitor Mode
.614
ECM Terminals and Reference Value ...................614
Wiring Diagram .....................................................615
Diagnostic Procedure ...........................................616
INJECTOR CIRCUIT ...............................................618
Component Description ........................................618
CONSULT-II Reference Value in Data Monitor Mode
.618
ECM Terminals and Reference Value ...................618
Wiring Diagram .....................................................619
Diagnostic Procedure ...........................................620
Component Inspection ..........................................622
Removal and Installation ......................................622
START SIGNAL ......................................................623
CONSULT-II Reference Value in Data Monitor Mode
.623
ECM Terminals and Reference Value ...................623Wiring Diagram ..................................................... 624
Diagnostic Procedure ............................................ 625
FUEL PUMP CIRCUIT ............................................. 627
Description ............................................................ 627
CONSULT-II Reference Value in Data Monitor Mode
. 627
ECM Terminals and Reference Value ................... 627
Wiring Diagram ..................................................... 629
Diagnostic Procedure ............................................ 630
Component Inspection .......................................... 632
Removal and Installation ....................................... 633
REFRIGERANT PRESSURE SENSOR .................. 634
Component Description ........................................ 634
ECM Terminals and Reference Value ................... 634
Wiring Diagram ..................................................... 635
Diagnostic Procedure ............................................ 636
Removal and Installation ....................................... 637
ELECTRICAL LOAD SIGNAL ................................ 638
CONSULT-II Reference Value in Data Monitor Mode
. 638
ECM Terminals and Reference Value ................... 638
Wiring Diagram ..................................................... 639
Diagnostic Procedure ............................................ 641
DATA LINK CONNECTOR ...................................... 646
Wiring Diagram ..................................................... 646
EVAPORATIVE EMISSION SYSTEM ..................... 647
Description ............................................................ 647
Component Inspection .......................................... 649
POSITIVE CRANKCASE VENTILATION ................ 650
Description ............................................................ 650
Component Inspection .......................................... 650
SERVICE DATA AND SPECIFICATIONS (SDS) .... 652
Fuel Pressure ........................................................ 652
Idle Speed and Ignition Timing .............................. 652
Calculated Load Value .......................................... 652
Mass Air Flow Sensor ........................................... 652
Intake Air Temperature Sensor ............................. 652
Engine Coolant Temperature Sensor .................... 652
Heated Oxygen Sensor 1 Heater .......................... 652
Heated Oxygen sensor 2 Heater .......................... 652
Crankshaft Position Sensor (POS) ....................... 652
Camshaft Position Sensor (PHASE) ..................... 652
Throttle Control Motor ........................................... 653
Injector .................................................................. 653
Fuel Pump ............................................................. 653
YD
INDEX FOR DTC ..................................................... 654
Alphabetical Index ................................................. 654
DTC No. Index ...................................................... 654
PRECAUTIONS ....................................................... 656
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................... 656
Precautions ........................................................... 656
Wiring Diagrams and Trouble Diagnosis ............... 658