Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Xterra 2000-2004 Approved Nissan Xterra 2001 EC
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ENGINE CONTROL SYSTEM GI
SECTION EC MA
EM
LC
CONTENTS FE
KA24DE Idle Speed/Ignition Timing/Idle Mixture Ratio
CL
Adjustment .................................................................53
TROUBLE DIAGNOSIS - INDEX ..................................13
ON BOARD DIAGNOSTIC SYSTEM MT
Alphabetical & P No. Index for DTC .........................13
DESCRIPTION ...............................................................67
PRECAUTIONS .............................................................17
Introduction ................................................................67
Supplemental Restraint System (SRS) AIR
Two Trip Detection Logic ...........................................67 AT
BAG and SEAT BELT PRE-TENSIONER.............17
Emission-related Diagnostic Information ...................68
Precautions for On Board Diagnostic (OBD)
Malfunction Indicator Lamp (MIL)..............................80
System of Engine and A/T.........................................17
OBD System Operation Chart ...................................81
TF
Engine Fuel & Emission Control System ..................18
CONSULT-II ...............................................................86
Precautions ................................................................19
Generic Scan Tool (GST) ..........................................98 PD
Wiring Diagrams and Trouble Diagnosis...................20
TROUBLE DIAGNOSIS - INTRODUCTION................100
PREPARATION .............................................................21
Introduction ..............................................................100
Special Service Tools ................................................21
Commercial Service Tools .........................................21
Work Flow................................................................102 AX
TROUBLE DIAGNOSIS - BASIC INSPECTION .........104
ENGINE AND EMISSION CONTROL OVERALL
Basic Inspection.......................................................104
SYSTEM.........................................................................23 SU
TROUBLE DIAGNOSIS - GENERAL
Engine Control Component Parts Location...............23
DESCRIPTION .............................................................118
Circuit Diagram ..........................................................25
DTC Inspection Priority Chart..................................118
System Diagram ........................................................26 BR
Fail-safe Chart .........................................................119
Vacuum Hose Drawing ..............................................27
Symptom Matrix Chart.............................................120
System Chart .............................................................28
ENGINE AND EMISSION BASIC CONTROL
CONSULT-II Reference Value in Data Monitor ST
Mode ........................................................................124
SYSTEM DESCRIPTION ...............................................29
Major Sensor Reference Graph in Data Monitor
Multiport Fuel Injection (MFI) System .......................29 RS
Mode ........................................................................126
Distributor Ignition (DI) System .................................31
ECM Terminals and Reference Value .....................129
Air Conditioning Cut Control......................................33
TROUBLE DIAGNOSIS - SPECIFICATION
Fuel Cut Control (at no load & high engine
VALUE..........................................................................138
BT
speed) ........................................................................33
Description ...............................................................138
Evaporative Emission System ...................................34
Testing Condition .....................................................138 HA
On Board Refueling Vapor Recovery (ORVR) ..........39
Inspection Procedure...............................................138
Positive Crankcase Ventilation ..................................49
Diagnostic Procedure ..............................................139
BASIC SERVICE PROCEDURE ...................................51
TROUBLE DIAGNOSIS FOR INTERMITTENT SC
Fuel Pressure Release ..............................................51
INCIDENT.....................................................................142
Fuel Pressure Check .................................................51
Description ...............................................................142
Fuel Pressure Regulator Check ................................52
Diagnostic Procedure ..............................................142 EL
Injector .......................................................................52
TROUBLE DIAGNOSIS FOR POWER SUPPLY........143
Fast Idle Cam (FIC)...................................................53
Main Power Supply and Ground Circuit..................143 IDX
DTC P0100 MASS AIR FLOW SENSOR (MAFS)......150
CONTENTS (Cont'd)
Component Description ...........................................150 On Board Diagnosis Logic.......................................193
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................194
Mode ........................................................................150 Overall Function Check ...........................................195
ECM Terminals and Reference Value .....................150 Wiring Diagram ........................................................196
On Board Diagnosis Logic.......................................151 Diagnostic Procedure ..............................................197
DTC Confirmation Procedure ..................................151 DTC P0131 HEATED OXYGEN SENSOR 1
Overall Function Check ...........................................153 (FRONT) ( LEAN SHIFT MONITORING) ....................200
Wiring Diagram ........................................................154 Component Description ...........................................200
Diagnostic Procedure ..............................................155 CONSULT-II Reference Value in Data Monitor
DTC P0105 ABSOLUTE PRESSURE SENSOR ........160 Mode ........................................................................200
Component Description ...........................................160 ECM Terminals and Reference Value .....................200
On Board Diagnosis Logic.......................................160 On Board Diagnosis Logic.......................................201
DTC Confirmation Procedure ..................................160 DTC Confirmation Procedure ..................................201
Diagnostic Procedure ..............................................161 Overall Function Check ...........................................202
DTC P0110 INTAKE AIR TEMPERATURE Diagnostic Procedure ..............................................202
SENSOR ......................................................................162 DTC P0132 HEATED OXYGEN SENSOR 1
Component Description ...........................................162 (FRONT) (RICH SHIFT MONITORING) ......................207
On Board Diagnosis Logic.......................................162 Component Description ...........................................207
DTC Confirmation Procedure ..................................163 CONSULT-II Reference Value in Data Monitor
Wiring Diagram ........................................................164 Mode ........................................................................207
Diagnostic Procedure ..............................................165 ECM Terminals and Reference Value .....................207
DTC P0115 ENGINE COOLANT On Board Diagnosis Logic.......................................208
TEMPERATURESENSOR (ECTS) (CIRCUIT)............168 DTC Confirmation Procedure ..................................208
Component Description ...........................................168 Overall Function Check ...........................................209
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................209
Mode ........................................................................168 DTC P0133 HEATED OXYGEN SENSOR 1
On Board Diagnosis Logic.......................................168 (FRONT) (RESPONSE MONITORING).......................214
DTC Confirmation Procedure ..................................169 Component Description ...........................................214
Wiring Diagram ........................................................170 CONSULT-II Reference Value in Data Monitor
Diagnostic Procedure ..............................................171 Mode ........................................................................214
DTC P0120 THROTTLE POSITION SENSOR ...........173 ECM Terminals and Reference Value .....................214
Component Description ...........................................173 On Board Diagnosis Logic.......................................215
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................215
Mode ........................................................................173 Overall Function Check ...........................................216
ECM Terminals and Reference Value .....................174 Wiring Diagram ........................................................217
On Board Diagnosis Logic.......................................174 Diagnostic Procedure ..............................................218
DTC Confirmation Procedure ..................................175 DTC P0134 HEATED OXYGEN SENSOR 1
Wiring Diagram ........................................................178 (FRONT) (HIGH VOLTAGE)........................................225
Diagnostic Procedure ..............................................179 Component Description ...........................................225
DTC P0125 ENGINE COOLANT TEMPERATURE CONSULT-II Reference Value in Data Monitor
(ECT) SENSOR............................................................187 Mode ........................................................................225
Component Description ...........................................187 ECM Terminals and Reference Value .....................225
On Board Diagnosis Logic.......................................187 On Board Diagnosis Logic.......................................226
DTC Confirmation Procedure ..................................187 DTC Confirmation Procedure ..................................226
Wiring Diagram ........................................................189 Wiring Diagram ........................................................227
Diagnostic Procedure ..............................................190 Diagnostic Procedure ..............................................228
DTC P0130 HEATED OXYGEN SENSOR 1 DTC P0135 HEATED OXYGEN SENSOR 1
(FRONT) (CIRCUIT).....................................................192 HEATER (FRONT).......................................................232
Component Description ...........................................192 Description ...............................................................232
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................192 Mode ........................................................................232
ECM Terminals and Reference Value .....................192 ECM Terminals and Reference Value .....................232
EC-2
CONTENTS (Cont'd)
On Board Diagnosis Logic.......................................232 CONSULT-II Reference Value in Data Monitor GI
DTC Confirmation Procedure ..................................233 Mode ........................................................................275
Wiring Diagram ........................................................234 ECM Terminals and Reference Value .....................275
Diagnostic Procedure ..............................................235 On Board Diagnosis Logic.......................................275 MA
DTC P0137 HEATED OXYGEN SENSOR 2 DTC Confirmation Procedure ..................................276
(REAR) (MIN. VOLTAGE MONITORING)...................237 Wiring Diagram ........................................................277
Component Description ...........................................237 Diagnostic Procedure ..............................................278
EM
CONSULT-II Reference Value in Data Monitor DTC P0171 FUEL INJECTION SYSTEM
Mode ........................................................................237 FUNCTION (LEAN SIDE) ............................................280 LC
ECM Terminals and Reference Value .....................237 On Board Diagnosis Logic.......................................280
On Board Diagnosis Logic.......................................237 DTC Confirmation Procedure ..................................280
DTC Confirmation Procedure ..................................238 Wiring Diagram ........................................................282
Overall Function Check ...........................................239 Diagnostic Procedure ..............................................283
Wiring Diagram ........................................................240 DTC P0172 FUEL INJECTION SYSTEM
Diagnostic Procedure ..............................................241 FUNCTION (RICH SIDE) .............................................287 FE
DTC P0138 HEATED OXYGEN SENSOR 2 On Board Diagnosis Logic.......................................287
(REAR) (MIN. VOLTAGE MONITORING)...................247 DTC Confirmation Procedure ..................................287 CL
Component Description ...........................................247 Wiring Diagram ........................................................289
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................290
Mode ........................................................................247 DTC P0180 FUEL TANK TEMPERATURE MT
ECM Terminals and Reference Value .....................247 SENSOR ......................................................................294
On Board Diagnosis Logic.......................................247 Component Description ...........................................294
DTC Confirmation Procedure ..................................248 On Board Diagnosis Logic.......................................294 AT
Overall Function Check ...........................................249 DTC Confirmation Procedure ..................................295
Wiring Diagram ........................................................250 Wiring Diagram ........................................................296
TF
Diagnostic Procedure ..............................................251 Diagnostic Procedure ..............................................297
DTC P0139 HEATED OXYGEN SENSOR 2 DTC P0300 - P0304 NO. 4 - 1 CYLINDER
(REAR) (RESPONSE MONITORING).........................257 MISFIRE, MULTIPLE CYLINDER MISFIRE ...............300 PD
Component Description ...........................................257 On Board Diagnosis Logic.......................................300
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................300
Mode ........................................................................257 Diagnostic Procedure ..............................................301 AX
ECM Terminals and Reference Value .....................257 DTC P0325 KNOCK SENSOR (KS) ...........................309
On Board Diagnosis Logic.......................................257 Component Description ...........................................309
DTC Confirmation Procedure ..................................258 ECM Terminals and Reference Value .....................309
SU
Overall Function Check ...........................................259 On Board Diagnosis Logic.......................................309
Wiring Diagram ........................................................260 DTC Confirmation Procedure ..................................309 BR
Diagnostic Procedure ..............................................261 Wiring Diagram ........................................................310
DTC P0140 HEATED OXYGEN SENSOR 2 Diagnostic Procedure ..............................................311
(REAR) (HIGH VOLTAGE) ..........................................267 DTC P0335 CRANKSHAFT POSITION SENSOR ST
Component Description ...........................................267 (CKPS) (OBD)..............................................................313
CONSULT-II Reference Value in Data Monitor Component Description ...........................................313
Mode ........................................................................267 ECM Terminals and Reference Value .....................313 RS
ECM Terminals and Reference Value .....................267 On Board Diagnosis Logic.......................................313
On Board Diagnosis Logic.......................................267 DTC Confirmation Procedure ..................................314
BT
DTC Confirmation Procedure ..................................268 Wiring Diagram ........................................................315
Overall Function Check ...........................................268 Diagnostic Procedure ..............................................316
Wiring Diagram ........................................................269 DTC P0340 CAMSHAFT POSITION SENSOR HA
Diagnostic Procedure ..............................................270 (CMPS).........................................................................319
DTC P0141 HEATED OXYGEN SENSOR 2 Component Description ...........................................319
HEATER (REAR) .........................................................275 ECM Terminals and Reference Value .....................319 SC
Description ...............................................................275 On Board Diagnosis Logic.......................................320
DTC Confirmation Procedure ..................................321
EL
IDX
EC-3
CONTENTS (Cont'd)
Wiring Diagram ........................................................322 DTC Confirmation Procedure ..................................387
Diagnostic Procedure ..............................................323 Wiring Diagram ........................................................388
DTC P0400 EGR FUNCTION (CLOSE)......................327 Diagnostic Procedure ..............................................389
Description ...............................................................327 DTC P0455 EVAP CONTROL SYSTEM (GROSS
On Board Diagnosis Logic.......................................328 LEAK)...........................................................................400
DTC Confirmation Procedure ..................................329 On Board Diagnosis Logic.......................................400
Overall Function Check ...........................................330 DTC Confirmation Procedure ..................................401
Wiring Diagram ........................................................331 Diagnostic Procedure ..............................................402
Diagnostic Procedure ..............................................332 DTC P0460 FUEL LEVEL SENSOR FUNCTION
DTC P0402 EGRC-BPT VALVE FUNCTION..............339 (SLOSH).......................................................................413
Description ...............................................................339 Component Description ...........................................413
On Board Diagnosis Logic.......................................339 On Board Diagnostic Logic......................................413
DTC Confirmation Procedure ..................................340 Possible Cause........................................................413
Overall Function Check ...........................................341 DTC Confirmation Procedure ..................................413
Diagnostic Procedure ..............................................342 Wiring Diagram ........................................................414
DTC P0420 THREE WAY CATALYST FUNCTION ...347 Diagnostic Procedure ..............................................415
On Board Diagnosis Logic.......................................347 DTC P0461 FUEL LEVEL SENSOR FUNCTION .......417
DTC Confirmation Procedure ..................................347 Component Description ...........................................417
Overall Function Check ...........................................348 On Board Diagnostic Logic......................................417
Diagnostic Procedure ..............................................349 Possible Cause........................................................417
DTC P0440 EVAP CONTROL SYSTEM (SMALL Overall Function Check ...........................................417
LEAK)(NEGATIVE PRESSURE).................................352 DTC P0464 FUEL LEVEL SENSOR CIRCUIT ...........419
On Board Diagnosis Logic.......................................352 Component Description ...........................................419
DTC Confirmation Procedure ..................................354 On Board Diagnostic Logic......................................419
Diagnostic Procedure ..............................................356 Possible Cause........................................................419
DTC P0443 EVAP CANISTER PURGE VOLUME DTC Confirmation Procedure ..................................419
CONTROL SOLENOID VALVE (CIRCUIT).................369 Wiring Diagram ........................................................420
Description ...............................................................369 Diagnostic Procedure ..............................................421
CONSULT-II Reference Value in Data Monitor DTC P0500 VEHICLE SPEED SENSOR (VSS) .........423
Mode ........................................................................369 Component Description ...........................................423
ECM Terminals and Reference Value .....................370 ECM Terminals and Reference Value .....................423
On Board Diagnosis Logic.......................................370 On Board Diagnosis Logic.......................................423
DTC Confirmation Procedure ..................................371 DTC Confirmation Procedure ..................................423
Wiring Diagram ........................................................372 Overall Function Check ...........................................424
Diagnostic Procedure ..............................................373 Wiring Diagram ........................................................425
DTC P0446 EVAPORATIVE EMISSION (EVAP) Diagnostic Procedure ..............................................426
CANISTER VENT CONTROL VALVE (CIRCUIT) ......377 DTC P0505 IDLE AIR CONTROL VALVE (IACV)
Component Description ...........................................377 - AUXILIARY AIR CONTROL (AAC) VALVE .............427
CONSULT-II Reference Value in Data Monitor Description ...............................................................427
Mode ........................................................................377 CONSULT-II Reference Value in Data Monitor
ECM Terminals and Reference Value .....................377 Mode ........................................................................428
On Board Diagnosis Logic.......................................377 ECM Terminals and Reference Value .....................428
DTC Confirmation Procedure ..................................378 On Board Diagnosis Logic.......................................428
Wiring Diagram ........................................................379 DTC Confirmation Procedure ..................................429
Diagnostic Procedure ..............................................380 Wiring Diagram ........................................................430
DTC P0450 EVAPORATIVE EMISSION (EVAP) Diagnostic Procedure ..............................................431
CONTROL SYSTEM PRESSURE SENSOR ..............385 DTC P0510 CLOSED THROTTLE POSITION
Component Description ...........................................385 SWITCH .......................................................................433
CONSULT-II Reference Value in Data Monitor Component Description ...........................................433
Mode ........................................................................385 ECM Terminals and Reference Value .....................433
ECM Terminals and Reference Value .....................385 On Board Diagnosis Logic.......................................433
On Board Diagnosis Logic.......................................386 DTC Confirmation Procedure ..................................434
EC-4
CONTENTS (Cont'd)
Overall Function Check ...........................................434 Possible Cause........................................................474 GI
Wiring Diagram ........................................................435 DTC Confirmation Procedure ..................................475
Diagnostic Procedure ..............................................436 Diagnostic Procedure ..............................................475
DTC P0605 ECM .........................................................440 DTC P1441 EVAP CONTROL SYSTEM (VERY MA
Component Description ...........................................440 SMALL LEAK) .............................................................476
On Board Diagnosis Logic.......................................440 On Board Diagnosis Logic.......................................476
DTC Confirmation Procedure ..................................440 Possible Cause........................................................476
EM
Diagnostic Procedure ..............................................441 DTC Confirmation Procedure ..................................477
DTC P1126 THERMOSTAT FUNCTION.....................442 Diagnostic Procedure ..............................................479 LC
On Board Diagnosis Logic.......................................442 DTC P1444 EVAP CANISTER PURGE VOLUME
Possible Cause........................................................442 CONTROL SOLENOID VALVE...................................491
DTC Confirmation Procedure ..................................442 Description ...............................................................491
Diagnostic Procedure ..............................................443 CONSULT-II Reference Value in Data Monitor
DTC P1148 CLOSED LOOP CONTROL ....................444 Mode ........................................................................491
On Board Diagnosis Logic.......................................444 ECM Terminals and Reference Value .....................492 FE
DTC Confirmation Procedure ..................................444 On Board Diagnosis Logic.......................................492
Overall Function Check ...........................................445 DTC Confirmation Procedure ..................................493 CL
Diagnostic Procedure ..............................................445 Wiring Diagram ........................................................494
DTC P1336 CRANKSHAFT POSITION SENSOR Diagnostic Procedure ..............................................495
(CKPS) (OBD) (COG)..................................................446 DTC P1446 EVAPORATIVE EMISSION (EVAP) MT
Component Description ...........................................446 CANISTER VENT CONTROL VALVE (CLOSE).........503
ECM Terminals and Reference Value .....................446 Component Description ...........................................503
On Board Diagnosis Logic.......................................447 CONSULT-II Reference Value in Data Monitor AT
DTC Confirmation Procedure ..................................447 Mode ........................................................................503
Wiring Diagram ........................................................448 ECM Terminals and Reference Value .....................503
TF
Diagnostic Procedure ..............................................449 On Board Diagnosis Logic.......................................503
DTC P1400 EGRC-SOLENOID VALVE ......................452 DTC Confirmation Procedure ..................................504
Component Description ...........................................452 Diagnostic Procedure ..............................................505 PD
CONSULT-II Reference Value in Data Monitor DTC P1447 EVAPORATIVE EMISSION (EVAP)
Mode ........................................................................452 CONTROL SYSTEM PURGE FLOW
ECM Terminals and Reference Value .....................452 MONITORING ..............................................................509 AX
On Board Diagnosis Logic.......................................452 System Description..................................................509
DTC Confirmation Procedure ..................................453 On Board Diagnosis Logic.......................................509
Overall Function Check ...........................................453 DTC Confirmation Procedure ..................................510
SU
Wiring Diagram ........................................................454 Overall Function Check ...........................................510
Diagnostic Procedure ..............................................455 Diagnostic Procedure ..............................................511 BR
DTC P1401 EGR TEMPERATURE SENSOR.............459 DTC P1448 EVAPORATIVE EMISSION (EVAP)
Component Description ...........................................459 CANISTER VENT CONTROL VALVE (OPEN)...........519
On Board Diagnosis Logic.......................................459 Component Description ...........................................519 ST
DTC Confirmation Procedure ..................................460 CONSULT-II Reference Value in Data Monitor
Overall Function Check ...........................................461 Mode ........................................................................519
Wiring Diagram ........................................................462 ECM Terminals and Reference Value .....................519 RS
Diagnostic Procedure ..............................................463 On Board Diagnosis Logic.......................................519
DTC P1402 EGR FUNCTION (OPEN) ........................465 DTC Confirmation Procedure ..................................520
BT
Description ...............................................................465 Overall Function Check ...........................................521
On Board Diagnosis Logic.......................................466 Diagnostic Procedure ..............................................521
DTC Confirmation Procedure ..................................466 DTC P1464 FUEL LEVEL SENSOR CIRCUIT HA
Wiring Diagram ........................................................468 (GROUND SIGNAL) ....................................................527
Diagnostic Procedure ..............................................469 Component Description ...........................................527
DTC P1440 EVAP CONTROL SYSTEM (SMALL On Board Diagnostic Logic......................................527 SC
LEAK) (POSITIVE PRESSURE) .................................474 Possible Cause........................................................527
On Board Diagnosis Logic.......................................474 DTC Confirmation Procedure ..................................527
EL
IDX
EC-5
CONTENTS (Cont'd)
Wiring Diagram ........................................................528 CONSULT-II Reference Value in Data Monitor
Diagnostic Procedure ..............................................529 Mode ........................................................................572
DTC P1490 VACUUM CUT VALVE BYPASS ECM Terminals and Reference Value .....................572
VALVE (CIRCUIT)........................................................530 Wiring Diagram ........................................................573
Description ...............................................................530 Diagnostic Procedure ..............................................574
CONSULT-II Reference Value in Data Monitor FUEL PUMP.................................................................576
Mode ........................................................................530 System Description..................................................576
ECM Terminals and Reference Value .....................530 Component Description ...........................................576
On Board Diagnosis Logic.......................................531 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................531 Mode ........................................................................576
Wiring Diagram ........................................................532 ECM Terminals and Reference Value .....................577
Diagnostic Procedure ..............................................533 Wiring Diagram ........................................................578
DTC P1491 VACUUM CUT VALVE BYPASS Diagnostic Procedure ..............................................579
VALVE..........................................................................537 POWER STEERING OIL PRESSURE SWITCH.........584
Description ...............................................................537 Component Description ...........................................584
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................537 Mode ........................................................................584
ECM Terminals and Reference Value .....................537 ECM Terminals and Reference Value .....................584
On Board Diagnosis Logic.......................................538 Wiring Diagram ........................................................585
DTC Confirmation Procedure ..................................538 Diagnostic Procedure ..............................................586
Overall Function Check ...........................................539 IACV-FICD SOLENOID VALVE...................................588
Wiring Diagram ........................................................540 Component Description ...........................................588
Diagnostic Procedure ..............................................541 ECM Terminals and Reference Value .....................588
DTC P1706 PARK/NEUTRAL POSITION (PNP) Wiring Diagram ........................................................589
SWITCH .......................................................................548 Diagnostic Procedure ..............................................590
Component Description ...........................................548 MIL & DATA LINK CONNECTORS ............................594
CONSULT-II Reference Value in Data Monitor Wiring Diagram ........................................................594
Mode ........................................................................548 SERVICE DATA AND SPECIFICATIONS (SDS) .......595
ECM Terminals and Reference Value .....................548 Fuel Pressure Regulator..........................................595
On Board Diagnosis Logic.......................................548 Idle Speed and Ignition Timing................................595
DTC Confirmation Procedure ..................................549 Ignition Coil ..............................................................595
Overall Function Check ...........................................550 Mass Air Flow Sensor..............................................595
Wiring Diagram ........................................................551 Engine Coolant Temperature Sensor ......................595
Diagnostic Procedure For M/T Models....................552 EGR Temperature Sensor .......................................595
TROUBLE DIAGNOSIS FOR OVERHEAT .................554 Fuel Pump ...............................................................595
On Board Diagnosis Logic.......................................554 IACV-AAC Valve ......................................................596
Overall Function Check ...........................................554 Injector .....................................................................596
Diagnostic Procedure ..............................................555 Resistor....................................................................596
Main 11 Causes of Overheating..............................558 Throttle Position Sensor ..........................................596
IGNITION SIGNAL.......................................................559 Heated Oxygen Sensor 1 Heater (Front) ................596
Component Description ...........................................559 Calculated Load Value.............................................596
CONSULT-II Reference Value in Data Monitor Intake Air Temperature Sensor................................596
Mode ........................................................................559 Heated Oxygen Sensor 2 Heater (Rear).................596
ECM Terminals and Reference Value .....................560 Crankshaft Position Sensor (OBD)..........................596
Wiring Diagram ........................................................561 Fuel Tank Temperature Sensor ...............................596
Diagnostic Procedure ..............................................562
INJECTOR ...................................................................567 VG33E
Component Description ...........................................567
ECM Terminals and Reference Value .....................567 TROUBLE DIAGNOSIS - INDEX ................................597
Wiring Diagram ........................................................568 Alphabetical & P No. Index for DTC .......................597
Diagnostic Procedure ..............................................569 PRECAUTIONS ...........................................................603
START SIGNAL...........................................................572 Supplemental Restraint System (SRS) AIR
BAG and SEAT BELT PRE-TENSIONER...........603
EC-6
CONTENTS (Cont'd)
Precautions for On Board Diagnostic (OBD) CONSULT-II Reference Value in Data Monitor GI
System of Engine and A/T.......................................603 Mode ........................................................................714
Engine Fuel & Emission Control System ................604 Major Sensor Reference Graph in Data Monitor
Precautions ..............................................................605 Mode ........................................................................716 MA
Wiring Diagrams and Trouble Diagnosis.................606 ECM Terminals and Reference Value .....................719
PREPARATION ...........................................................607 TROUBLE DIAGNOSIS - SPECIFICATION
Special Service Tools ..............................................607 VALUE..........................................................................728
EM
Commercial Service Tools .......................................607 Description ...............................................................728
ENGINE AND EMISSION CONTROL OVERALL Testing Condition .....................................................728 LC
SYSTEM.......................................................................609 Inspection Procedure...............................................728
Engine Control Component Parts Location.............609 Diagnostic Procedure ..............................................729
Circuit Diagram ........................................................611 TROUBLE DIAGNOSIS FOR INTERMITTENT
System Diagram ......................................................612 INCIDENT.....................................................................732
Vacuum Hose Drawing ............................................613 Description ...............................................................732
System Chart ...........................................................614 Diagnostic Procedure ..............................................732 FE
ENGINE AND EMISSION BASIC CONTROL TROUBLE DIAGNOSIS FOR POWER SUPPLY........733
SYSTEM DESCRIPTION .............................................615 Main Power Supply and Ground Circuit..................733 CL
Multiport Fuel Injection (MFI) System .....................615 DTC P0100 MASS AIR FLOW SENSOR (MAFS)......739
Distributor Ignition (DI) System ...............................617 Component Description ...........................................739
Air Conditioning Cut Control....................................618 CONSULT-II Reference Value in Data Monitor MT
Fuel Cut Control (at no load & high engine Mode ........................................................................739
speed) ......................................................................619 ECM Terminals and Reference Value .....................739
Evaporative Emission System .................................619 On Board Diagnosis Logic.......................................739 AT
On Board Refueling Vapor Recovery (ORVR) ........625 DTC Confirmation Procedure ..................................740
Positive Crankcase Ventilation ................................635 Overall Function Check ...........................................742
TF
BASIC SERVICE PROCEDURE .................................637 Wiring Diagram ........................................................743
Fuel Pressure Release ............................................637 Diagnostic Procedure ..............................................744
Fuel Pressure Check ...............................................637 DTC P0105 ABSOLUTE PRESSURE SENSOR ........748 PD
Fuel Pressure Regulator Check ..............................638 Component Description ...........................................748
Injector .....................................................................638 On Board Diagnosis Logic.......................................748
Fast Idle Cam (FIC).................................................639 DTC Confirmation Procedure ..................................748 AX
Idle Speed/Ignition Timing/Idle Mixture Ratio Diagnostic Procedure ..............................................749
Adjustment ...............................................................641 DTC P0110 INTAKE AIR TEMPERATURE
ON BOARD DIAGNOSTIC SYSTEM SENSOR ......................................................................750
SU
DESCRIPTION .............................................................653 Component Description ...........................................750
Introduction ..............................................................653 On Board Diagnosis Logic.......................................750 BR
Two Trip Detection Logic .........................................653 DTC Confirmation Procedure ..................................750
Emission-related Diagnostic Information .................654 Wiring Diagram ........................................................752
Malfunction Indicator Lamp (MIL)............................668 Diagnostic Procedure ..............................................753 ST
OBD System Operation Chart .................................669 DTC P0115 ENGINE COOLANT TEMPERATURE
CONSULT-II .............................................................675 SENSOR (ECTS) (CIRCUIT) .......................................755
Generic Scan Tool (GST) ........................................688 Component Description ...........................................755 RS
TROUBLE DIAGNOSIS - INTRODUCTION................690 On Board Diagnosis Logic.......................................755
Introduction ..............................................................690 DTC Confirmation Procedure ..................................756
BT
Work Flow................................................................692 Wiring Diagram ........................................................757
TROUBLE DIAGNOSIS - BASIC INSPECTION .........694 Diagnostic Procedure ..............................................758
Basic Inspection.......................................................694 DTC P0120 THROTTLE POSITION SENSOR ...........760 HA
TROUBLE DIAGNOSIS - GENERAL Description ...............................................................760
DESCRIPTION .............................................................708 CONSULT-II Reference Value in Data Monitor
DTC Inspection Priority Chart..................................708 Mode ........................................................................760 SC
Fail-safe Chart .........................................................709 ECM Terminals and Reference Value .....................761
Symptom Matrix Chart.............................................710 On Board Diagnosis Logic.......................................761
EL
IDX
EC-7
CONTENTS (Cont'd)
DTC Confirmation Procedure ..................................762 Overall Function Check ...........................................809
Wiring Diagram ........................................................765 Wiring Diagram ........................................................810
Diagnostic Procedure ..............................................766 Diagnostic Procedure ..............................................812
DTC P0125 ENGINE COOLANT TEMPERATURE DTC P0134, P0154 HEATED OXYGEN SENSOR 1
SENSOR (ECTS) .........................................................773 (FRONT) (BANK 1)/(BANK 2) (HIGH VOLTAGE)......821
Description ...............................................................773 Component Description ...........................................821
On Board Diagnosis Logic.......................................773 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................774 Mode ........................................................................821
Wiring Diagram ........................................................775 ECM Terminals and Reference Value .....................821
Diagnostic Procedure ..............................................776 On Board Diagnosis Logic.......................................822
DTC P0130, P0150 HEATED OXYGEN SENSOR 1 DTC Confirmation Procedure ..................................822
(FRONT) (BANK 1)/(BANK 2) (CIRCUIT) ..................778 Wiring Diagram ........................................................823
Component Description ...........................................778 Diagnostic Procedure ..............................................825
CONSULT-II Reference Value in Data Monitor DTC P0135, P0155 HEATED OXYGEN SENSOR 1
Mode ........................................................................778 HEATER (FRONT) (BANK 1)/(BANK 2).....................829
ECM Terminals and Reference Value .....................778 Description ...............................................................829
On Board Diagnosis Logic.......................................779 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................780 ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo