
ENGINE CONTROL SYSTEM
SECTION
EC
CONTENTS
QG18DE
TROUBLE DIAGNOSIS - INDEX..................................16
Alphabetical & P No. Index for DTC .........................16
PRECAUTIONS.............................................................21
Precautions for Supplemental Restraint System
(SRS)²AIR BAG²and²SEAT BELT
PRE-TENSIONER²....................................................21
Precautions for On Board Diagnostic (OBD)
System of Engine ......................................................21
Engine Fuel & Emission Control System ..................22
Wiring Diagrams and Trouble Diagnosis ...................24
PREPARATION.............................................................25
Special Service Tools ................................................25
Commercial Service Tools .........................................25
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.........................................................................26
Engine Control Component Parts Location ...............26
Circuit Diagram ..........................................................30
System Diagram ........................................................32
Vacuum Hose Drawing ..............................................33
System Chart .............................................................34
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION...............................................35
Multiport Fuel Injection (MFI) System .......................35
Electronic Ignition (EI) System ..................................37
Air Conditioning Cut Control ......................................38
Fuel Cut Control (at no load & high engine
speed) ........................................................................39
Evaporative Emission System ...................................39
Positive Crankcase Ventilation ..................................42
BASIC SERVICE PROCEDURE...................................43
Fuel Pressure Release ..............................................43
Fuel Pressure Check .................................................43
Fuel Pressure Regulator Check ................................44
Injector .......................................................................44
How to Check Idle Speed and Ignition Timing ..........46
Preparation ................................................................47
Inspection Procedure .................................................49Idle Air Volume Learning ...........................................57
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...............................................................59
Introduction ................................................................59
Two Trip Detection Logic ...........................................59
Emission-related Diagnostic Information ...................60
NATS (Nissan Anti-theft System) ..............................72
Malfunction Indicator (MI) ..........................................73
OBD System Operation Chart (With Euro-OBD
Models Only)..............................................................77
CONSULT-II ...............................................................82
Generic Scan Tool (GST) ..........................................93
TROUBLE DIAGNOSIS - INTRODUCTION..................95
Introduction ................................................................95
Work Flow ..................................................................97
TROUBLE DIAGNOSIS - BASIC INSPECTION...........99
Basic Inspection.........................................................99
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION.............................................................122
DTC Inspection Priority Chart..................................122
Fail-safe Chart .........................................................123
Symptom Matrix Chart .............................................124
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................128
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................130
ECM Terminals and Reference Value .....................133
TROUBLE DIAGNOSIS - SPECIFICATION VALUE..141
Description ...............................................................141
Testing Condition .....................................................141
Inspection Procedure ...............................................141
Diagnostic Procedure ..............................................142
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT.....................................................................145
Description ...............................................................145
Diagnostic Procedure ..............................................145
TROUBLE DIAGNOSIS FOR POWER SUPPLY........146
Main Power Supply and Ground Circuit ..................146 

On Board Diagnosis Logic.......................................221
DTC Confirmation Procedure ..................................222
Wiring Diagram ........................................................223
Diagnostic Procedure ..............................................225
Component Inspection .............................................226
DTC P0137 HEATED OXYGEN SENSOR 2
(REAR) (MIN. VOLTAGE MONITORING)...................227
Component Description ...........................................227
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................227
ECM Terminals and Reference Value .....................227
On Board Diagnosis Logic.......................................227
DTC Confirmation Procedure ..................................228
Overall Function Check ...........................................229
Wiring Diagram ........................................................230
Diagnostic Procedure ..............................................232
Component Inspection .............................................235
DTC P0138 HEATED OXYGEN SENSOR 2
(REAR) (MAX. VOLTAGE MONITORING).................237
Component Description ...........................................237
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................237
ECM Terminals and Reference Value .....................237
On Board Diagnosis Logic.......................................237
DTC Confirmation Procedure ..................................238
Overall Function Check ...........................................239
Wiring Diagram ........................................................240
Diagnostic Procedure ..............................................242
Component Inspection .............................................244
DTC P0139 HEATED OXYGEN SENSOR 2
(REAR) (RESPONSE MONITORING).........................246
Component Description ...........................................246
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................246
ECM Terminals and Reference Value .....................246
On Board Diagnosis Logic.......................................246
DTC Confirmation Procedure ..................................247
Overall Function Check ...........................................248
Wiring Diagram ........................................................249
Diagnostic Procedure ..............................................251
Component Inspection .............................................254
DTC P0140 HEATED OXYGEN SENSOR 2
(REAR) (HIGH VOLTAGE)..........................................256
Component Description ...........................................256
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................256
ECM Terminals and Reference Value .....................256
On Board Diagnosis Logic.......................................256
DTC Confirmation Procedure ..................................257
Overall Function Check ...........................................257
Wiring Diagram ........................................................258
Diagnostic Procedure ..............................................260Component Inspection .............................................261
DTC P0141 HEATED OXYGEN SENSOR 2
HEATER (REAR).........................................................263
Description ...............................................................263
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................263
ECM Terminals and Reference Value .....................263
On Board Diagnosis Logic.......................................264
DTC Confirmation Procedure ..................................264
Wiring Diagram ........................................................265
Diagnostic Procedure ..............................................267
Component Inspection .............................................268
DTC P0171 FUEL INJECTION SYSTEM
FUNCTION (LEAN SIDE)............................................269
On Board Diagnosis Logic.......................................269
DTC Confirmation Procedure ..................................269
Wiring Diagram ........................................................271
Diagnostic Procedure ..............................................273
DTC P0172 FUEL INJECTION SYSTEM
FUNCTION (RICH SIDE).............................................277
On Board Diagnosis Logic.......................................277
DTC Confirmation Procedure ..................................277
Wiring Diagram ........................................................279
Diagnostic Procedure ..............................................281
DTC P0300 - P0304 NO.4-1CYLINDER
MISFIRE, MULTIPLE CYLINDER MISFIRE...............285
On Board Diagnosis Logic.......................................285
DTC Confirmation Procedure ..................................285
Diagnostic Procedure ..............................................286
DTC P0325 KNOCK SENSOR (KS)...........................291
Component Description ...........................................291
ECM Terminals and Reference Value .....................291
On Board Diagnosis Logic.......................................291
DTC Confirmation Procedure ..................................291
Wiring Diagram ........................................................292
Diagnostic Procedure ..............................................293
Component Inspection .............................................294
DTC P0335 CRANKSHAFT POSITION SENSOR
(POS)............................................................................295
Component Description ...........................................295
ECM Terminals and Reference Value .....................295
On Board Diagnosis Logic.......................................296
DTC Confirmation Procedure ..................................296
Wiring Diagram ........................................................297
Diagnostic Procedure ..............................................299
Component Inspection .............................................301
DTC P0340 CAMSHAFT POSITION SENSOR
(CMPS) (PHASE).........................................................302
Component Description ...........................................302
ECM Terminals and Reference Value .....................302
On Board Diagnosis Logic.......................................303
DTC Confirmation Procedure ..................................303
CONTENTS(Cont'd)
EC-3 

CONSULT-II Reference Value in Data Monitor
Mode ........................................................................467
ECM Terminals and Reference Value .....................467
Wiring Diagram ........................................................468
Diagnostic Procedure ..............................................470
Component Inspection .............................................474
INTAKE VALVE TIMING CONTROL SOLENOID
VALVE..........................................................................475
Component Description ...........................................475
Operation .................................................................475
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................475
ECM Terminals and Reference Value .....................475
Wiring Diagram ........................................................476
Diagnostic Procedure ..............................................478
Component Inspection .............................................480
SWIRL CONTROL VALVE CONTROL SYSTEM
(WHERE FITTED)........................................................481
Description ...............................................................481
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................481
ECM Terminals and Reference Value .....................482
Component Description ...........................................482
Wiring Diagram ........................................................483
Diagnostic Procedure ..............................................484
Component Inspection .............................................488
PARK/NEUTRAL POSITION (PNP) SWITCH............490
Component Description ...........................................490
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................490
ECM Terminals and Reference Value .....................490
Wiring Diagram ........................................................491
Diagnostic Procedure ..............................................492
INJECTOR...................................................................494
Component Description ...........................................494
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................494
ECM Terminals and Reference Value .....................494
Wiring Diagram ........................................................495
Diagnostic Procedure ..............................................497
Component Inspection .............................................499
IGNITION SIGNAL.......................................................500
Component Description ...........................................500
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................500
ECM Terminals and Reference Value .....................500
Wiring Diagram ........................................................501
Diagnostic Procedure ..............................................505
Component Inspection .............................................509
START SIGNAL........................................................... 511
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................ 511ECM Terminals and Reference Value ..................... 511
Wiring Diagram ........................................................512
Diagnostic Procedure ..............................................514
FUEL PUMP.................................................................516
System Description ..................................................516
Component Description ...........................................516
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................516
ECM Terminals and Reference Value .....................517
Wiring Diagram ........................................................518
Diagnostic Procedure ..............................................520
Component Inspection .............................................522
POWER STEERING OIL PRESSURE SWITCH.........523
Component Description ...........................................523
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................523
ECM Terminals and Reference Value .....................523
Wiring Diagram ........................................................524
Diagnostic Procedure ..............................................526
Component Inspection .............................................527
REFRIGERANT PRESSURE SENSOR......................529
Description ...............................................................529
ECM Terminals and Reference Value .....................529
Wiring Diagram ........................................................530
Diagnostic Procedure ..............................................532
ELECTRICAL LOAD SIGNAL.....................................535
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................535
ECM Terminals and Reference Value .....................535
Wiring Diagram ........................................................536
Diagnostic Procedure - Load Signal - .....................540
Diagnostic Procedure - Heater Control Panel
(Fan Switch) - ..........................................................544
MI & DATA LINK CONNECTORS..............................545
Wiring Diagram ........................................................545
SERVICE DATA AND SPECIFICATIONS (SDS).......547
Fuel Pressure Regulator..........................................547
Idle Speed and Ignition Timing ................................547
Mass Air Flow Sensor..............................................547
Intake Air Temperature Sensor ................................547
Engine Coolant Temperature Sensor ......................547
Throttle Position Sensor ..........................................547
Heated Oxygen Sensor 1 Heater (Front) ................547
Heated Oxygen Sensor 2 Heater (Rear).................547
EGR Volume Control Valve (where fitted) ...............548
EGR Temperature Sensor (where fitted) .................548
EVAP Canister Purge Volume Control Valve ..........548
IACV-AAC Valve ......................................................548
Injector .....................................................................548
Ignition Coil with Power Transistor ..........................548
Condenser ...............................................................548
Fuel Pump ...............................................................548
CONTENTS(Cont'd)
EC-6 

Crankshaft Position Sensor (POS) ..........................549
Camshaft Position Sensor (PHASE) .......................549
SR20DE
TROUBLE DIAGNOSIS - INDEX................................550
Alphabetical & P No. Index for DTC .......................550
PRECAUTIONS...........................................................555
Precautions for Supplemental Restraint System
(SRS)²AIR BAG²and²SEAT BELT
PRE-TENSIONER²..................................................555
Precautions for On Board Diagnostic (OBD)
System of Engine and CVT .....................................555
Engine Fuel & Emission Control System ................556
Wiring Diagrams and Trouble Diagnosis .................558
PREPARATION...........................................................559
Special Service Tools ..............................................559
Commercial Service Tools .......................................559
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.......................................................................560
Engine Control Component Parts Location .............560
Circuit Diagram ........................................................564
System Diagram ......................................................566
Vacuum Hose Drawing ............................................567
System Chart ...........................................................568
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION.............................................569
Multiport Fuel Injection (MFI) System .....................569
Electronic Ignition (EI) System ................................571
Air Conditioning Cut Control ....................................572
Fuel Cut Control (at no load & high engine
speed) ......................................................................573
Evaporative Emission System .................................573
Positive Crankcase Ventilation ................................576
BASIC SERVICE PROCEDURE.................................577
Fuel Pressure Release ............................................577
Fuel Pressure Check ...............................................577
Fuel Pressure Regulator Check ..............................578
Injector .....................................................................578
Idle Air Volume Learning .........................................581
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION.............................................................583
Introduction ..............................................................583
Two Trip Detection Logic .........................................583
Emission-related Diagnostic Information .................584
NATS (Nissan Anti-theft System) ............................597
Malfunction Indicator (MI) ........................................598
OBD System Operation Chart (With Euro-OBD
Models Only)............................................................602
CONSULT-II .............................................................607
Generic Scan Tool (GST) ........................................617
TROUBLE DIAGNOSIS - INTRODUCTION................619
Introduction ..............................................................619Work Flow ................................................................621
TROUBLE DIAGNOSIS - BASIC INSPECTION.........623
Basic Inspection (Models with Throttle Opener) .....623
Basic Inspection (Models without Throttle
Opener) ....................................................................638
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION.............................................................646
DTC Inspection Priority Chart..................................646
Fail-safe Chart .........................................................647
Symptom Matrix Chart .............................................648
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................652
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................654
ECM Terminals and Reference Value .....................657
TROUBLE DIAGNOSIS - SPECIFICATION VALUE..666
Description ...............................................................666
Testing Condition .....................................................666
Inspection Procedure ...............................................666
Diagnostic Procedure ..............................................667
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT.....................................................................670
Description ...............................................................670
Diagnostic Procedure ..............................................670
TROUBLE DIAGNOSIS FOR POWER SUPPLY........671
Main Power Supply and Ground Circuit ..................671
DTC P0100 MASS AIR FLOW SENSOR (MAFS)......679
Component Description ...........................................679
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................679
ECM Terminals and Reference Value .....................679
On Board Diagnosis Logic.......................................679
Fail-safe Mode .........................................................680
DTC Confirmation Procedure ..................................680
Wiring Diagram ........................................................682
Diagnostic Procedure ..............................................684
Component Inspection .............................................686
DTC P0110 INTAKE AIR TEMPERATURE
SENSOR......................................................................687
Component Description ...........................................687
On Board Diagnosis Logic.......................................688
DTC Confirmation Procedure ..................................688
Wiring Diagram ........................................................689
Diagnostic Procedure ..............................................691
Component Inspection .............................................693
DTC P0115 ENGINE COOLANT TEMPERATURE
SENSOR (ECTS) (CIRCUIT).......................................694
Component Description ...........................................694
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................694
On Board Diagnosis Logic.......................................694
Fail-safe Mode .........................................................695
CONTENTS(Cont'd)
EC-7 

Wiring Diagram ........................................................764
Diagnostic Procedure ..............................................766
Component Inspection .............................................769
DTC P0139 HEATED OXYGEN SENSOR 2
(REAR) (RESPONSE MONITORING).........................770
Component Description ...........................................770
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................770
ECM Terminals and Reference Value .....................770
On Board Diagnosis Logic.......................................770
DTC Confirmation Procedure ..................................771
Overall Function Check ...........................................772
Wiring Diagram ........................................................773
Diagnostic Procedure ..............................................775
Component Inspection .............................................778
DTC P0140 HEATED OXYGEN SENSOR 2
(REAR) (HIGH VOLTAGE)..........................................779
Component Description ...........................................779
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................779
ECM Terminals and Reference Value .....................779
On Board Diagnosis Logic.......................................779
DTC Confirmation Procedure ..................................780
Overall Function Check ...........................................780
Wiring Diagram ........................................................781
Diagnostic Procedure ..............................................783
Component Inspection .............................................784
DTC P0141 HEATED OXYGEN SENSOR 2
HEATER (REAR).........................................................786
Description ...............................................................786
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................786
ECM Terminals and Reference Value .....................786
On Board Diagnosis Logic.......................................786
DTC Confirmation Procedure ..................................787
Wiring Diagram ........................................................788
Diagnostic Procedure ..............................................790
Component Inspection .............................................791
DTC P0171 FUEL INJECTION SYSTEM
FUNCTION (LEAN SIDE)............................................792
On Board Diagnosis Logic.......................................792
DTC Confirmation Procedure ..................................792
Wiring Diagram ........................................................794
Diagnostic Procedure ..............................................796
DTC P0172 FUEL INJECTION SYSTEM
FUNCTION (RICH SIDE).............................................800
On Board Diagnosis Logic.......................................800
DTC Confirmation Procedure ..................................800
Wiring Diagram ........................................................802
Diagnostic Procedure ..............................................804DTC P0300 - P0304 NO.4-1CYLINDER
MISFIRE, MULTIPLE CYLINDER MISFIRE...............808
On Board Diagnosis Logic.......................................808
DTC Confirmation Procedure ..................................808
Diagnostic Procedure ..............................................809
Component Inspection .............................................814
DTC P0325 KNOCK SENSOR (KS)...........................815
Component Description ...........................................815
ECM Terminals and Reference Value .....................815
On Board Diagnosis Logic.......................................815
DTC Confirmation Procedure ..................................815
Wiring Diagram ........................................................816
Diagnostic Procedure ..............................................817
Component Inspection .............................................818
DTC P0335 CRANKSHAFT POSITION SENSOR
(CKPS) (OBD)..............................................................819
Component Description ...........................................819
ECM Terminals and Reference Value .....................819
On Board Diagnosis Logic.......................................819
DTC Confirmation Procedure ..................................820
Wiring Diagram ........................................................821
Diagnostic Procedure ..............................................823
Component Inspection .............................................824
DTC P0340 CAMSHAFT POSITION SENSOR
(CMPS).........................................................................825
Component Description ...........................................825
ECM Terminals and Reference Value .....................825
On Board Diagnosis Logic.......................................826
DTC Confirmation Procedure ..................................826
Wiring Diagram ........................................................828
Diagnostic Procedure ..............................................830
Component Inspection .............................................833
DTC P0400 EGR FUNCTION (CLOSED) (WHERE
FITTED)........................................................................834
Description ...............................................................834
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................835
ECM Terminals and Reference Value .....................835
On Board Diagnosis Logic.......................................835
DTC Confirmation Procedure ..................................836
Wiring Diagram ........................................................838
Diagnostic Procedure ..............................................839
DTC P0403 EGR VOLUME CONTROL VALVE
(CIRCUIT) (WHERE FITTED)......................................841
Description ...............................................................841
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................842
ECM Terminals and Reference Value .....................842
On Board Diagnosis Logic.......................................842
DTC Confirmation Procedure ..................................842
Wiring Diagram ........................................................844
Diagnostic Procedure ..............................................845
CONTENTS(Cont'd)
EC-9 

Diagnostic Procedure ............................................1019
INJECTOR.................................................................1021
Component Description .........................................1021
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1021
ECM Terminals and Reference Value ...................1021
Wiring Diagram ......................................................1022
Diagnostic Procedure ............................................1024
Component Inspection ...........................................1026
START SIGNAL.........................................................1027
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1027
ECM Terminals and Reference Value ...................1027
Wiring Diagram ......................................................1028
Diagnostic Procedure ............................................1030
FUEL PUMP...............................................................1032
System Description ................................................1032
Component Description .........................................1032
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1032
ECM Terminals and Reference Value ...................1033
Wiring Diagram ......................................................1034
Diagnostic Procedure ............................................1036
Component Inspection ...........................................1038
POWER STEERING OIL PRESSURE SWITCH.......1039
Component Description .........................................1039
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1039
ECM Terminals and Reference Value ...................1039
Wiring Diagram ......................................................1040
Diagnostic Procedure ............................................1041
Component Inspection ...........................................1043
REFRIGERANT PRESSURE SENSOR....................1044
Description .............................................................1044
ECM Terminals and Reference Value ...................1044
Wiring Diagram ......................................................1045
Diagnostic Procedure ............................................1047
ELECTRICAL LOAD SIGNAL...................................1050
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1050
ECM Terminals and Reference Value ...................1050
Wiring Diagram ......................................................1051
Diagnostic Procedure - Load Signal - ...................1055
Diagnostic Procedure - Heater Control Panel
(Fan Switch) - ........................................................1059
MI & DATA LINK CONNECTORS............................1060
Wiring Diagram ......................................................1060
SERVICE DATA AND SPECIFICATIONS (SDS).....1062
Fuel Pressure Regulator........................................1062
Idle Speed and Ignition Timing ..............................1062
Ignition Coil ............................................................1062
Mass Air Flow Sensor............................................1062Engine Coolant Temperature Sensor ....................1062
EGR Volume Control Valve (where fitted) .............1062
EGR Temperature Sensor (where fitted) ...............1062
Fuel Pump .............................................................1063
IACV-AAC Valve ....................................................1063
Injector ...................................................................1063
Resistor ..................................................................1063
Throttle Position Sensor ........................................1063
Heated Oxygen Sensor 1 (Front) Heater ..............1063
Intake Air Temperature Sensor ..............................1063
EVAP Canister Purge Volume Control Valve ........1063
Heated Oxygen Sensor 2 (Rear) Heater...............1063
Crankshaft Position Sensor (OBD)........................1063
YD22DDTI
TROUBLE DIAGNOSIS - INDEX..............................1064
Alphabetical & P No. Index for DTC .....................1064
PRECAUTIONS.........................................................1066
Precautions for Supplemental Restraint System
(SRS)²AIR BAG²and²SEAT BELT
PRE-TENSIONER²................................................1066
Engine Fuel & Emission Control System ..............1066
Wiring Diagrams and Trouble Diagnosis ...............1069
PREPARATION.........................................................1070
Special Service Tools ............................................1070
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................1071
Engine Control Component Parts Location ...........1071
Circuit Diagram ......................................................1074
System Diagram ....................................................1076
Vacuum Hose Drawing ..........................................1077
System Chart .........................................................1078
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION...........................................1079
Fuel Injection Control System ...............................1079
Fuel Injection Timing Control System....................1080
Air Conditioning Cut Control ..................................1081
Fuel Cut Control (at no load & high engine
speed) ....................................................................1081
Crankcase Ventilation System ...............................1082
BASIC SERVICE PROCEDURE...............................1083
Injection Tube and Injection Nozzle ......................1083
Electronic Control Fuel Injection Pump .................1087
Fuel Filter ...............................................................1094
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...........................................................1096
DTC and MI Detection Logic .................................1096
Diagnostic Trouble Code (DTC) ............................1096
NATS (Nissan Anti-Theft System) .........................1097
Malfunction Indicator (MI) ......................................1097
CONSULT-II ........................................................... 1102
CONTENTS(Cont'd)
EC-12 

TROUBLE DIAGNOSIS - INTRODUCTION.............. 1107
Introduction ............................................................ 1107
Work Flow .............................................................. 1109
TROUBLE DIAGNOSIS - BASIC INSPECTION.......1111
Basic Inspection.....................................................1111
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION........................................................... 1116
Symptom Matrix Chart ........................................... 1116
CONSULT-II Reference Value in Data Monitor
Mode ...................................................................... 1126
Major Sensor Reference Graph in Data Monitor
Mode ...................................................................... 1128
ECM Terminals and Reference Value ................... 1129
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT................................................................... 1135
Description ............................................................. 1135
Diagnostic Procedure ............................................ 1135
TROUBLE DIAGNOSIS FOR POWER SUPPLY...... 1136
Main Power Supply and Ground Circuit ................ 1136
DTC P0100 MASS AIR FLOW SEN......................... 1143
Component Description ......................................... 1143
CONSULT-II Reference Value in Data Monitor
Mode ...................................................................... 1143
ECM Terminals and Reference Value ................... 1143
On Board Diagnosis Logic..................................... 1143
DTC Confirmation Procedure ................................ 1144
Wiring Diagram ...................................................... 1145
Diagnostic Procedure ............................................ 1147
DTC P0115 COOLANT TEMP SEN.......................... 1150
Description ............................................................. 1150
On Board Diagnosis Logic..................................... 1150
DTC Confirmation Procedure ................................ 1150
Wiring Diagram ...................................................... 1152
Diagnostic Procedure ............................................ 1153
DTC P0120 ACCEL POS SENSOR.......................... 1155
Description ............................................................. 1155
CONSULT-II Reference Value in Data Monitor
Mode ...................................................................... 1155
ECM Terminals and Reference Value ................... 1155
On Board Diagnosis Logic..................................... 1156
DTC Confirmation Procedure ................................ 1156
Wiring Diagram ...................................................... 1157
Diagnostic Procedure ............................................ 1159
DTC P0335 CRANK POS SEN (TDC)...................... 1166
Description ............................................................. 1166
CONSULT-II Reference Value in Data Monitor
Mode ...................................................................... 1166
ECM Terminals and Reference Value ................... 1166
On Board Diagnosis Logic..................................... 1166
DTC Confirmation Procedure ................................ 1167
Wiring Diagram ...................................................... 1168
Diagnostic Procedure ............................................ 1169DTC P0500 VEHICLE SPEED SEN.......................... 1172
Description ............................................................. 1172
ECM Terminals and Reference Value ................... 1172
On Board Diagnosis Logic..................................... 1172
Overall Function Check ......................................... 1172
Wiring Diagram ...................................................... 1174
Diagnostic Procedure ............................................ 1176
DTC P0571 BRAKE SW............................................ 1177
Description ............................................................. 1177
ECM Terminals and Reference Value ................... 1177
On Board Diagnosis Logic..................................... 1177
DTC Confirmation Procedure ................................ 1177
Wiring Diagram ...................................................... 1179
Diagnostic Procedure ............................................ 1181
DTC P1107 ECM 10.................................................. 1185
Description ............................................................. 1185
On Board Diagnosis Logic..................................... 1185
DTC Confirmation Procedure ................................ 1185
Diagnostic Procedure ............................................ 1186
DTC P1180 P9.FUEL TEMP SEN............................. 1187
Description ............................................................. 1187
CONSULT-II Reference Value in Data Monitor
Mode ...................................................................... 1187
ECM Terminals and Reference Value ................... 1188
On Board Diagnosis Logic..................................... 1188
DTC Confirmation Procedure ................................ 1188
Wiring Diagram ...................................................... 1190
Diagnostic Procedure ............................................ 1192
DTC P1202 FUEL CUT SYSTEM2........................... 1194
Description ............................................................. 1194
CONSULT-II Reference Value in Data Monitor
Mode ...................................................................... 1194
ECM Terminals and Reference Value ................... 1195
On Board Diagnosis Logic..................................... 1195
DTC Confirmation Procedure ................................ 1195
Wiring Diagram ...................................................... 1197
Diagnostic Procedure ............................................ 1199
DTC P1217 OVER HEAT..........................................1201
Description .............................................................1201
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1201
ECM Terminals and Reference Value ...................1201
On Board Diagnosis Logic.....................................1202
Overall Function Check .........................................1203
Wiring Diagram ......................................................1204
Diagnostic Procedure ............................................1206
Main 12 Causes of Overheating............................1217
DTC P1241 P7.F/INJ TIMG FB.................................1218
Description .............................................................1218
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................1218
ECM Terminals and Reference Value ...................1219
CONTENTS(Cont'd)
EC-13 

DTC*6
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*2ECM*1
P0133 0133 HO2S1 (B1) EC-204
P0134 0134 HO2S1 (B1) EC-214
P0135 0135 HO2S1 HTR (B1) EC-221
P0137 0137 HO2S2 (B1) EC-227
P0138 0138 HO2S2 (B1) EC-237
P0139 0139 HO2S2 (B1) EC-246
P0140 0140 HO2S2 (B1) EC-256
P0141 0141 HO2S2 HTR (B1) EC-263
P0171 0171 FUEL SYS-LEAN/BK1 EC-269
P0172 0172 FUEL SYS-RICH/BK1 EC-277
P0300 0300 MULTI CYL MISFIRE EC-285
P0301 0301 CYL 1 MISFIRE EC-285
P0302 0302 CYL 2 MISFIRE EC-285
P0303 0303 CYL 3 MISFIRE EC-285
P0304 0304 CYL 4 MISFIRE EC-285
P0325 0325 KNOCK SEN/CIRC-B1 EC-291
P0335 0335 CKP SEN/CIRCUIT EC-295
P0340 0340 CMP SEN/CIRCUIT EC-302
P0400 (where fitted) 0400 EGR SYSTEM EC-310
P0403 (where fitted) 0403 EGR VOL CON/V CIR EC-319
P0420 0420 TW CATALYST SYS-B1 EC-327
P0443 0443 PURG VOLUME CONT/V EC-332
P0500 0500 VEH SPEED SEN/CIRC*4 EC-338
P0505 0505 IACV/AAC VLV/CIRC EC-343
P0510 (where fitted) 0510 CLOSED TP SW/CIRC EC-352
P0605 0605 ECM EC-358
P 1111 1111INT/V TIM V/CIR-B1 EC-360
P1131 (where fitted) 1131 SWRL CONT SOL/V EC-366
P1217 1217 ENG OVER TEMP EC-373
P1401 (where fitted) 1401 EGR TEMP SEN/CIRC EC-386
P1402 (where fitted) 1402 EGR SYSTEM EC-393
P1610 - 1615 1610 - 1615 NATS MALFUNCTION EL-334
P1706 1706 P-N POS SW/CIRCUIT EC-402
*1: In Diagnostic Test Mode II (Self-diagnostic results). These numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO 15031-6
*3: When the fail-safe operation occurs, the MI illuminates.
*4: The MI illuminates when the ªRevolution sensor signalº and the ªVehicle speed sensor signalº meet the fail-safe condition at the
same time.
*5: While engine is running.
TROUBLE DIAGNOSIS Ð INDEXQG18DE
Alphabetical & P No. Index for DTC (Cont'd)
EC-18