Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti I30 A32 A33 1996-2001 Approved Infiniti I30 2000 ec
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ENGINE CONTROL SYSTEM
GI
SECTION EC MA
EM
LC
CONTENTS
FE
TROUBLE DIAGNOSIS - INDEX ....................................8 ON BOARD DIAGNOSTIC SYSTEM
Alphabetical & P No. Index for DTC ...........................8 DESCRIPTION ...............................................................69 AT
PRECAUTIONS .............................................................14 Introduction ................................................................69
Supplemental Restraint System (SRS) AIR Two Trip Detection Logic ...........................................69
BAG and SEAT BELT PRE-TENSIONER.............14 Emission-related Diagnostic Information ...................70 AX
Precautions for On Board Diagnostic (OBD) Malfunction Indicator Lamp (MIL)..............................84
System of Engine and A/T.........................................14 OBD System Operation Chart ...................................85
SU
Engine Fuel & Emission Control System ..................15 CONSULT-II ...............................................................91
Precautions ................................................................16 Generic Scan Tool (GST) ........................................104
Wiring Diagrams and Trouble Diagnosis...................17 TROUBLE DIAGNOSIS - INTRODUCTION................106 BR
PREPARATION .............................................................18 Introduction ..............................................................106
Special Service Tools ................................................18 Work Flow................................................................108
Commercial Service Tools .........................................18 TROUBLE DIAGNOSIS - BASIC INSPECTION .........110 ST
ENGINE AND EMISSION CONTROL OVERALL Basic Inspection.......................................................110
SYSTEM.........................................................................20 TROUBLE DIAGNOSIS - GENERAL
Engine Control Component Parts Location...............20 DESCRIPTION .............................................................125
RS
Circuit Diagram ..........................................................24 DTC Inspection Priority Chart..................................125
System Diagram ........................................................25 Fail-safe Chart .........................................................126 BT
Vacuum Hose Drawing ..............................................26 Symptom Diagnosis Procedure ...............................127
System Chart .............................................................27 Symptom Matrix Chart.............................................134
ENGINE AND EMISSION BASIC CONTROL CONSULT-II Reference Value in Data Monitor HA
SYSTEM DESCRIPTION ...............................................28 Mode ........................................................................138
Multiport Fuel Injection (MFI) System .......................28 Major Sensor Reference Graph in Data Monitor
Electronic Ignition (EI) System ..................................30 Mode ........................................................................141 SC
Air Conditioning Cut Control......................................31 ECM Terminals and Reference Value .....................144
Fuel Cut Control (at no load & high engine TROUBLE DIAGNOSIS - SPECIFICATION VALUE ..152 EL
speed) ........................................................................32 Description ...............................................................152
Evaporative Emission System ...................................32 Testing Condition .....................................................152
Positive Crankcase Ventilation ..................................48 Inspection Procedure...............................................152 IDX
BASIC SERVICE PROCEDURE ...................................50 Diagnostic Procedure ..............................................153
Fuel Pressure Release ..............................................50 TROUBLE DIAGNOSIS FOR INTERMITTENT
Fuel Pressure Check .................................................50 INCIDENT.....................................................................156
Fuel Pressure Regulator Check ................................51 Description ...............................................................156
Injector .......................................................................52 Diagnostic Procedure ..............................................156
How to Check Idle Speed and Ignition Timing..........53 TROUBLE DIAGNOSIS FOR POWER SUPPLY........157
Idle Speed/Ignition Timing/Idle Mixture Ratio Main Power Supply and Ground Circuit..................157
Adjustment .................................................................54 DTC P0100 MASS AIR FLOW SENSOR (MAFS)......164
Idle Air Volume Learning ...........................................67 Component Description ...........................................164
CONTENTS (Cont'd)
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................164 Mode ........................................................................205
On Board Diagnosis Logic.......................................164 On Board Diagnosis Logic.......................................205
Possible Cause........................................................165 Possible Cause........................................................205
DTC Confirmation Procedure ..................................165 DTC Confirmation Procedure ..................................206
Overall Function Check ...........................................167 Overall Function Check ...........................................206
Wiring Diagram ........................................................168 Wiring Diagram ........................................................208
Diagnostic Procedure ..............................................169 Diagnostic Procedure ..............................................210
DTC P0105 ABSOLUTE PRESSURE SENSOR ........172 DTC P0131 (RIGHT, -B1), P0151 (LEFT, -B2)
Component Description ...........................................172 FRONT HO2S (LEAN SHIFT MONITORING).............215
On Board Diagnosis Logic.......................................172 Component Description ...........................................215
Possible Cause........................................................172 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................172 Mode ........................................................................215
Wiring Diagram ........................................................174 On Board Diagnosis Logic.......................................215
Diagnostic Procedure ..............................................175 Possible Cause........................................................215
DTC P0110 INTAKE AIR TEMPERATURE DTC Confirmation Procedure ..................................216
SENSOR ......................................................................178 Overall Function Check ...........................................217
Component Description ...........................................178 Diagnostic Procedure ..............................................217
On Board Diagnosis Logic.......................................178 DTC P0132 (RIGHT, -B1), P0152 (LEFT, -B2)
Possible Cause........................................................178 FRONT HO2S (RICH SHIFT MONITORING)..............223
DTC Confirmation Procedure ..................................178 Component Description ...........................................223
Wiring Diagram ........................................................180 CONSULT-II Reference Value in Data Monitor
Diagnostic Procedure ..............................................181 Mode ........................................................................223
DTC P0115 ENGINE COOLANT TEMPERATURE On Board Diagnosis Logic.......................................223
SENSOR (ECTS) (CIRCUIT) .......................................183 Possible Cause........................................................223
Component Description ...........................................183 DTC Confirmation Procedure ..................................224
On Board Diagnosis Logic.......................................183 Overall Function Check ...........................................225
Possible Cause........................................................184 Diagnostic Procedure ..............................................225
DTC Confirmation Procedure ..................................184 DTC P0133 (RIGHT, -B1), P0153 (LEFT, -B2)
Wiring Diagram ........................................................185 FRONT HO2S (RESPONSE MONITORING) ..............231
Diagnostic Procedure ..............................................186 Component Description ...........................................231
DTC P0120 THROTTLE POSITION SENSOR ...........188 CONSULT-II Reference Value in Data Monitor
Description ...............................................................188 Mode ........................................................................231
CONSULT-II Reference Value in Data Monitor On Board Diagnosis Logic.......................................231
Mode ........................................................................188 Possible Cause........................................................231
On Board Diagnosis Logic.......................................189 DTC Confirmation Procedure ..................................232
Possible Cause........................................................189 Overall Function Check ...........................................233
DTC Confirmation Procedure ..................................189 Wiring Diagram ........................................................234
Wiring Diagram ........................................................193 Diagnostic Procedure ..............................................236
Diagnostic Procedure ..............................................194 DTC P0134 (RIGHT, -B1), P0154 (LEFT, -B2)
DTC P0125 ENGINE COOLANT TEMPERATURE FRONT HO2S (HIGH VOLTAGE) ...............................244
SENSOR (ECTS) .........................................................200 Component Description ...........................................244
Description ...............................................................200 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................200 Mode ........................................................................244
Possible Cause........................................................201 On Board Diagnosis Logic.......................................244
DTC Confirmation Procedure ..................................201 Possible Cause........................................................244
Wiring Diagram ........................................................202 DTC Confirmation Procedure ..................................245
Diagnostic Procedure ..............................................203 Wiring Diagram ........................................................246
DTC P0130 (RIGHT, -B1), P0150 (LEFT, -B2) Diagnostic Procedure ..............................................248
FRONT HO2S (CIRCUIT) ............................................205 DTC P0135 (RIGHT, -B1), P0155 (LEFT, -B2)
Component Description ...........................................205 FRONT HO2S HEATER ..............................................252
Description ...............................................................252
EC-2
CONTENTS (Cont'd)
CONSULT-II Reference Value in Data Monitor DTC P0141 (RIGHT, -B1), P0161 (LEFT, -B2)
Mode ........................................................................252 REAR HO2S HEATER ................................................297
On Board Diagnosis Logic.......................................252 Description ...............................................................297 GI
Possible Cause........................................................252 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................253 Mode ........................................................................297 MA
Wiring Diagram ........................................................254 On Board Diagnosis Logic.......................................297
Diagnostic Procedure ..............................................256 Possible Cause........................................................297
DTC P0137 (RIGHT, -B1), P0157 (LEFT, -B2) DTC Confirmation Procedure ..................................298 EM
REAR HO2S (MIN. VOLTAGE MONITORING) ..........259 Wiring Diagram ........................................................299
Component Description ...........................................259 Diagnostic Procedure ..............................................301
CONSULT-II Reference Value in Data Monitor DTC P0171 (RIGHT, -B1), P0174 (LEFT, -B2) LC
Mode ........................................................................259 FUEL INJECTION SYSTEM FUNCTION (LEAN).......304
On Board Diagnosis Logic.......................................259 On Board Diagnosis Logic.......................................304
Possible Cause........................................................259 Possible Cause........................................................304
DTC Confirmation Procedure ..................................260 DTC Confirmation Procedure ..................................304
Overall Function Check ...........................................260 Wiring Diagram ........................................................306 FE
Wiring Diagram ........................................................262 Diagnostic Procedure ..............................................308
Diagnostic Procedure ..............................................264 DTC P0172 (RIGHT, -B1), P0175 (LEFT, -B2)
DTC P0138 (RIGHT, -B1), P0158 (LEFT, -B2) FUEL INJECTION SYSTEM FUNCTION (RICH)........312 AT
REAR HO2S (MAX. VOLTAGE MONITORING).........269 On Board Diagnosis Logic.......................................312
Component Description ...........................................269 Possible Cause........................................................312
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................312
AX
Mode ........................................................................269 Wiring Diagram ........................................................314
On Board Diagnosis Logic.......................................269 Diagnostic Procedure ..............................................316 SU
Possible Cause........................................................269 DTC P0180 FUEL TANK TEMPERATURE
DTC Confirmation Procedure ..................................270 SENSOR ......................................................................319
Overall Function Check ...........................................270 Component Description ...........................................319 BR
Wiring Diagram ........................................................272 On Board Diagnosis Logic.......................................319
Diagnostic Procedure ..............................................274 Possible Cause........................................................319
DTC P0139 (RIGHT, -B1), P0159 (LEFT, -B2) DTC Confirmation Procedure ..................................320 ST
REAR HO2S (RESPONSE MONITORING) ................279 Wiring Diagram ........................................................321
Component Description ...........................................279 Diagnostic Procedure ..............................................322
RS
CONSULT-II Reference Value in Data Monitor DTC P0217 COOLANT OVERTEMPERATURE
Mode ........................................................................279 ENRICHMENT PROTECTION.....................................324
On Board Diagnosis Logic.......................................279 System Description..................................................324 BT
Possible Cause........................................................279 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................280 Mode ........................................................................324
Overall Function Check ...........................................280 On Board Diagnosis Logic.......................................325 HA
Wiring Diagram ........................................................282 Possible Cause........................................................325
Diagnostic Procedure ..............................................284 Overall Function Check ...........................................325
DTC P0140 (RIGHT, -B1), P0160 (LEFT, -B2) Wiring Diagram ........................................................328
SC
REAR HO2S (HIGH VOLTAGE) .................................289 Diagnostic Procedure ..............................................330
Component Description ...........................................289 Main 12 Causes of Overheating..............................341 EL
CONSULT-II Reference Value in Data Monitor DTC P0300 - P0306 NO. 6 - 1 CYLINDER
Mode ........................................................................289 MISFIRE, MULTIPLE CYLINDER MISFIRE ...............342
On Board Diagnosis Logic.......................................289 On Board Diagnosis Logic.......................................342 IDX
Possible Cause........................................................289 Possible Cause........................................................342
DTC Confirmation Procedure ..................................289 DTC Confirmation Procedure ..................................343
Overall Function Check ...........................................290 Diagnostic Procedure ..............................................343
Wiring Diagram ........................................................291 DTC P0325 KNOCK SENSOR (KS) ...........................350
Diagnostic Procedure ..............................................293 Component Description ...........................................350
On Board Diagnosis Logic.......................................350
EC-3
CONTENTS (Cont'd)
Possible Cause........................................................350 DTC Confirmation Procedure ..................................392
DTC Confirmation Procedure ..................................350 Diagnostic Procedure ..............................................393
Wiring Diagram ........................................................351 DTC P0443 EVAP CANISTER PURGE VOLUME
Diagnostic Procedure ..............................................352 CONTROL SOLENOID VALVE (CIRCUIT).................406
DTC P0335 CRANKSHAFT POSITION SENSOR Description ...............................................................406
(CKPS) (POS) ..............................................................355 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................355 Mode ........................................................................406
CONSULT-II Reference Value in Data Monitor On Board Diagnosis Logic.......................................407
Mode ........................................................................355 Possible Cause........................................................407
On Board Diagnosis Logic.......................................355 DTC Confirmation Procedure ..................................407
Possible Cause........................................................355 Wiring Diagram ........................................................408
DTC Confirmation Procedure ..................................356 Diagnostic Procedure ..............................................409
Wiring Diagram ........................................................357 DTC P0446 EVAPORATIVE EMISSION (EVAP)
Diagnostic Procedure ..............................................358 CANISTER VENT CONTROL VALVE (CIRCUIT) ......412
DTC P0340 CAMSHAFT POSITION SENSOR Component Description ...........................................412
(CMPS) (PHASE).........................................................363 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................363 Mode ........................................................................412
On Board Diagnosis Logic.......................................363 On Board Diagnosis Logic.......................................412
Possible Cause........................................................363 Possible Cause........................................................412
DTC Confirmation Procedure ..................................363 DTC Confirmation Procedure ..................................413
Wiring Diagram ........................................................365 Wiring Diagram ........................................................414
Diagnostic Procedure ..............................................366 Diagnostic Procedure ..............................................415
DTC P0400 EGR FUNCTION (CLOSE)......................369 DTC P0450 EVAPORATIVE EMISSION (EVAP)
Description ...............................................................369 CONTROL SYSTEM PRESSURE SENSOR ..............419
CONSULT-II Reference Value in Data Monitor Component Description ...........................................419
Mode ........................................................................370 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................370 Mode ........................................................................419
Possible Cause........................................................370 On Board Diagnosis Logic.......................................419
DTC Confirmation Procedure ..................................371 Possible Cause........................................................419
Wiring Diagram ........................................................373 DTC Confirmation Procedure ..................................420
Diagnostic Procedure ..............................................374 Wiring Diagram ........................................................421
DTC P0403 EGR VOLUME CONTROL VALVE Diagnostic Procedure ..............................................422
(CIRCUIT).....................................................................378 DTC P0455 EVAP CONTROL SYSTEM (GROSS
Description ...............................................................378 LEAK)...........................................................................431
CONSULT-II Reference Value in Data Monitor On Board Diagnosis Logic.......................................431
Mode ........................................................................379 Possible Cause........................................................431
On Board Diagnosis Logic.......................................379 DTC Confirmation Procedure ..................................432
Possible Cause........................................................379 Diagnostic Procedure ..............................................433
DTC Confirmation Procedure ..................................379 DTC P0460 FUEL LEVEL SENSOR FUNCTION
Wiring Diagram ........................................................381 (SLOSH).......................................................................444
Diagnostic Procedure ..............................................382 Component Description ...........................................444
DTC P0420 (RIGHT BANK, -B1), P0430 (LEFT On Board Diagnostic Logic......................................444
BANK, -B2) THREE WAY CATALYST FUNCTION...385 Possible Cause........................................................444
On Board Diagnosis Logic.......................................385 DTC Confirmation Procedure ..................................444
Possible Cause........................................................385 Wiring Diagram ........................................................445
DTC Confirmation Procedure ..................................386 Diagnostic Procedure ..............................................446
Overall Function Check ...........................................386 DTC P0461 FUEL LEVEL SENSOR FUNCTION .......448
Diagnostic Procedure ..............................................387 Component Description ...........................................448
DTC P0440 EVAP CONTROL SYSTEM (SMALL On Board Diagnostic Logic......................................448
LEAK) (NEGATIVE PRESSURE)................................390 Possible Cause........................................................448
On Board Diagnosis Logic.......................................390 Overall Function Check ...........................................448
Possible Cause........................................................390 DTC P0464 FUEL LEVEL SENSOR CIRCUIT ...........450
EC-4
CONTENTS (Cont'd)
Component Description ...........................................450 Diagnostic Procedure ..............................................482
On Board Diagnostic Logic......................................450 DTC P1130 SWIRL CONTROL VALVE CONTROL
Possible Cause........................................................450 SOLENOID VALVE......................................................483 GI
DTC Confirmation Procedure ..................................450 Description ...............................................................483
Wiring Diagram ........................................................451 CONSULT-II Reference Value in Data Monitor MA
Diagnostic Procedure ..............................................452 Mode ........................................................................484
DTC P0500 VEHICLE SPEED SENSOR (VSS) .........454 On Board Diagnosis Logic.......................................484
Component Description ...........................................454 Possible Cause........................................................484 EM
On Board Diagnosis Logic.......................................454 DTC Confirmation Procedure ..................................485
Possible Cause........................................................454 Wiring Diagram ........................................................487
DTC Confirmation Procedure ..................................454 Diagnostic Procedure ..............................................488 LC
Overall Function Check ...........................................455 DTC P1148 (RIGHT BANK, -B1), P1168 (LEFT
Wiring Diagram ........................................................456 BANK, -B2) CLOSED LOOP CONTROL ...................507
Diagnostic Procedure ..............................................457 On Board Diagnosis Logic.......................................507
DTC P0505 IDLE AIR CONTROL VALVE (IACV) - Possible Cause........................................................507
AUXILIARY AIR CONTROL (AAC) VALVE ...............458 DTC Confirmation Procedure ..................................507 FE
Description ...............................................................458 Overall Function Check ...........................................508
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................508
Mode ........................................................................459 DTC P1165 SWIRL CONTROL VALVE CONTROL AT
On Board Diagnosis Logic.......................................459 VACUUM CHECK SWITCH.........................................509
Possible Cause........................................................459 Component Description ...........................................509
DTC Confirmation Procedure ..................................459 CONSULT-II Reference Value in Data Monitor
AX
Wiring Diagram ........................................................461 Mode ........................................................................509
Diagnostic Procedure ..............................................462 On Board Diagnosis Logic.......................................509 SU
DTC P0510 CLOSED THROTTLE POSITION Possible Cause........................................................509
SWITCH .......................................................................467 DTC Confirmation Procedure ..................................510
Component Description ...........................................467 Wiring Diagram ........................................................511 BR
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................512
Mode ........................................................................467 DTC P1211 ABS/TCS CONTROL UNIT .....................515
On Board Diagnosis Logic.......................................467 Description ...............................................................515 ST
Possible Cause........................................................467 On Board Diagnosis Logic.......................................515
DTC Confirmation Procedure ..................................468 Possible Cause........................................................515
RS
Overall Function Check ...........................................468 DTC Confirmation Procedure ..................................515
Wiring Diagram ........................................................470 Overall Function Check ...........................................516
Diagnostic Procedure ..............................................471 Diagnostic Procedure ..............................................516 BT
DTC P0600 A/T COMMUNICATION LINE..................476 DTC P1212 ABS/TCS COMMUNICATION LINE........517
System Description..................................................476 Description ...............................................................517
On Board Diagnosis Logic.......................................476 On Board Diagnosis Logic.......................................517 HA
Possible Cause........................................................476 Possible Cause........................................................517
DTC Confirmation Procedure ..................................476 DTC Confirmation Procedure ..................................517
Wiring Diagram ........................................................477 Wiring Diagram ........................................................518
SC
Diagnostic Procedure ..............................................478 Diagnostic Procedure ..............................................519
DTC P0605 ECM .........................................................479 DTC P1217 ENGINE OVER TEMPERATURE EL
Component Description ...........................................479 (OVERHEAT) ...............................................................520
On Board Diagnosis Logic.......................................479 System Description..................................................520
Possible Cause........................................................479 CONSULT-II Reference Value in Data Monitor IDX
DTC Confirmation Procedure ..................................479 Mode ........................................................................520
Diagnostic Procedure ..............................................480 On Board Diagnosis Logic.......................................521
DTC P1126 THERMOSTAT FUNCTION.....................481 Possible Cause........................................................521
On Board Diagnosis Logic.......................................481 Overall Function Check ...........................................521
Possible Cause........................................................481 Wiring Diagram ........................................................523
DTC Confirmation Procedure ..................................481 Diagnostic Procedure ..............................................525
EC-5
CONTENTS (Cont'd)
Main 12 Causes of Overheating..............................536 Description ...............................................................581
DTC P1320 IGNITION SIGNAL...................................537 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................537 Mode ........................................................................581
On Board Diagnosis Logic.......................................537 On Board Diagnosis Logic.......................................582
Possible Cause........................................................537 Possible Cause........................................................582
DTC Confirmation Procedure ..................................537 DTC Confirmation Procedure ..................................582
Wiring Diagram ........................................................539 Wiring Diagram ........................................................584
Diagnostic Procedure ..............................................542 Diagnostic Procedure ..............................................585
DTC P1335 CRANKSHAFT POSITION SENSOR DTC P1446 EVAPORATIVE EMISSION (EVAP)
(CKPS) (REF) ..............................................................548 CANISTER VENT CONTROL VALVE (CLOSE).........593
Component Description ...........................................548 Component Description ...........................................593
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................548 Mode ........................................................................593
On Board Diagnosis Logic.......................................548 On Board Diagnosis Logic.......................................593
Possible Cause........................................................549 Possible Cause........................................................593
DTC Confirmation Procedure ..................................549 DTC Confirmation Procedure ..................................594
Wiring Diagram ........................................................550 Wiring Diagram ........................................................595
Diagnostic Procedure ..............................................551 Diagnostic Procedure ..............................................596
DTC P1336 CRANKSHAFT POSITION SENSOR DTC P1447 EVAPORATIVE EMISSION (EVAP)
(CKPS) (POS) (COG) ..................................................554 CONTROL SYSTEM PURGE FLOW
Component Description ...........................................554 MONITORING ..............................................................601
CONSULT-II Reference Value in Data Monitor System Description..................................................601
Mode ........................................................................554 On Board Diagnosis Logic.......................................601
On Board Diagnosis Logic.......................................554 Possible Cause........................................................601
Possible Cause........................................................554 DTC Confirmation Procedure ..................................602
DTC Confirmation Procedure ..................................555 Overall Function Check ...........................................602
Wiring Diagram ........................................................556 Diagnostic Procedure ..............................................604
Diagnostic Procedure ..............................................557 DTC P1448 EVAPORATIVE EMISSION (EVAP)
DTC P1401 EGR TEMPERATURE SENSOR.............562 CANISTER VENT CONTROL VALVE (OPEN)...........613
Component Description ...........................................562 Component Description ...........................................613
On Board Diagnosis Logic.......................................562 CONSULT-II Reference Value in Data Monitor
Possible Cause........................................................562 Mode ........................................................................613
DTC Confirmation Procedure ..................................563 On Board Diagnosis Logic.......................................613
Wiring Diagram ........................................................565 Possible Cause........................................................613
Diagnostic Procedure ..............................................566 DTC Confirmation Procedure ..................................614
DTC P1402 EGR FUNCTION (OPEN) ........................570 Overall Function Check ...........................................615
Description ...............................................................570 Wiring Diagram ........................................................616
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................617
Mode ........................................................................571 DTC P1464 FUEL LEVEL SENSOR CIRCUIT
On Board Diagnosis Logic.......................................571 (GROUND SIGNAL) ....................................................622
Possible Cause........................................................571 Component Description ...........................................622
DTC Confirmation Procedure ..................................572 On Board Diagnostic Logic......................................622
Wiring Diagram ........................................................573 Possible Cause........................................................622
Diagnostic Procedure ..............................................574 DTC Confirmation Procedure ..................................622
DTC P1440 EVAP CONTROL SYSTEM (SMALL Wiring Diagram ........................................................623
LEAK) (POSITIVE PRESSURE) .................................579 Diagnostic Procedure ..............................................624
On Board Diagnosis Logic.......................................579 DTC P1490 VACUUM CUT VALVE BYPASS
Possible Cause........................................................579 VALVE (CIRCUIT)........................................................625
DTC Confirmation Procedure ..................................580 Description ...............................................................625
Diagnostic Procedure ..............................................580 CONSULT-II Reference Value in Data Monitor
DTC P1444 EVAP CANISTER PURGE VOLUME Mode ........................................................................625
CONTROL SOLENOID VALVE...................................581 On Board Diagnosis Logic.......................................625
EC-6
CONTENTS (Cont'd)
Possible Cause........................................................626 Wiring Diagram ........................................................664
DTC Confirmation Procedure ..................................626 Diagnostic Procedure ..............................................665
Wiring Diagram ........................................................627 FUEL PUMP.................................................................667 GI
Diagnostic Procedure ..............................................628 System Description..................................................667
DTC P1491 VACUUM CUT VALVE BYPASS Component Description ...........................................667 MA
VALVE..........................................................................631 CONSULT-II Reference Value in Data Monitor
Description ...............................................................631 Mode ........................................................................667
CONSULT-II Reference Value in Data Monitor Wiring Diagram ........................................................668 EM
Mode ........................................................................631 Diagnostic Procedure ..............................................669
On Board Diagnosis Logic.......................................631 ELECTRONIC CONTROLLED ENGINE MOUNT.......673
Possible Cause........................................................632 System Description..................................................673 LC
DTC Confirmation Procedure ..................................632 CONSULT-II Reference Value in Data Monitor
Overall Function Check ...........................................633 Mode ........................................................................673
Wiring Diagram ........................................................634 Wiring Diagram ........................................................674
Diagnostic Procedure ..............................................635 Diagnostic Procedure ..............................................675
DTC P1605 A/T DIAGNOSIS COMMUNICATION POWER STEERING OIL PRESSURE SWITCH.........677 FE
LINE .............................................................................643 Component Description ...........................................677
Component Description ...........................................643 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................643 Mode ........................................................................677 AT
Possible Cause........................................................643 Wiring Diagram ........................................................678
DTC Confirmation Procedure ..................................643 Diagnostic Procedure ..............................................679
Wiring Diagram ........................................................644 REFRIGERANT PRESSURE SENSOR ......................682
AX
Diagnostic Procedure ..............................................645 Description ...............................................................682
DTC P1706 PARK/NEUTRAL POSITION (PNP) Wiring Diagram ........................................................683 SU
SWITCH .......................................................................646 Diagnostic Procedure ..............................................684
Component Description ...........................................646 ELECTRICAL LOAD SIGNAL.....................................686
CONSULT-II Reference Value in Data Monitor Wiring Diagram ........................................................686 BR
Mode ........................................................................646 Diagnostic Procedure ..............................................688
On Board Diagnosis Logic.......................................646 MIL & DATA LINK CONNECTORS ............................692
Possible Cause........................................................646 Wiring Diagram ........................................................692 ST
DTC Confirmation Procedure ..................................646 SERVICE DATA AND SPECIFICATIONS (SDS) .......693
Overall Function Check ...........................................647 Fuel Pressure Regulator..........................................693
RS
Wiring Diagram ........................................................648 Idle Speed and Ignition Timing................................693
Diagnostic Procedure ..............................................649 Mass Air Flow Sensor..............................................693
VARIABLE INDUCTION AIR CONTROL SYSTEM Engine Coolant Temperature Sensor ......................693 BT
(VIAS)...........................................................................651 EGR Temperature Sensor .......................................693
Description ...............................................................651 Front Heated Oxygen Sensor Heater......................693
Wiring Diagram ........................................................653 Fuel Pump ...............................................................693 HA
Diagnostic Procedure ..............................................654 IACV-AAC Valve ......................................................693
INJECTOR ...................................................................657 Injector .....................................................................694
Component Description ...........................................657 Resistor....................................................................694
SC
CONSULT-II Reference Value in Data Monitor Throttle Position Sensor ..........................................694
Mode ........................................................................657 Calculated Load Value.............................................694 EL
Wiring Diagram ........................................................658 Intake Air Temperature Sensor................................694
Diagnostic Procedure ..............................................659 Rear Heated Oxygen Sensor Heater ......................694
START SIGNAL...........................................................663 Crankshaft Position Sensor (REF) ..........................694 IDX
CONSULT-II Reference Value in Data Monitor Fuel Tank Temperature Sensor ...............................694
Mode ........................................................................663 Camshaft Position Sensor (PHASE) .......................694
EC-7
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NHEC0001
ALPHABETICAL INDEX FOR DTC NHEC0001S01
Items
DTC*1 Reference page
(CONSULT-II screen terms)
Unable to access ECM -- EC-126
ABSL PRES SEN/CIRC P0105 EC-172
AIR TEMP SEN/CIRC P0110 EC-178
A/T 1ST GR FNCTN P0731 AT-124
A/T 2ND GR FNCTN P0732 AT-130
A/T 3RD GR FNCTN P0733 AT-136
A/T 4TH GR FNCTN P0734 AT-142
A/T COMM LINE P0600*2 EC-476
A/T DIAG COMM LINE P1605 EC-643
A/T TCC S/V FNCTN P0744 AT-156
ATF TEMP SEN/CIRC P0710 AT-108
CAM PS/CIRC (PHS) P0340 EC-363
CLOSED LOOP-B1 P1148 EC-507
CLOSED LOOP-B2 P1168 EC-507
CLOSED TP SW/CIRC P0510 EC-467
COOLANT T SEN/CIRC*3 P0115 EC-183
*COOLANT T SEN/CIRC P0125 EC-200
CPS/CIRC (POS) COG P1336 EC-554
CPS/CIRCUIT (POS) P0335 EC-355
CPS/CIRCUIT (REF) P1335 EC-548
CYL 1 MISFIRE P0301 EC-342
CYL 2 MISFIRE P0302 EC-342
CYL 3 MISFIRE P0303 EC-342
CYL 4 MISFIRE P0304 EC-342
CYL 5 MISFIRE P0305 EC-342
CYL 6 MISFIRE P0306 EC-342
ECM P0605 EC-479
EGR SYSTEM P0400 EC-369
EGR SYSTEM P1402 EC-570
EGR TEMP SEN/CIRC P1401 EC-562
EGR VOL CONT/V CIR P0403 EC-378
ENGINE SPEED SIG P0725 AT-119
ENG OVER TEMP P0217 EC-324
ENG OVER TEMP P1217*2 EC-520
EVAP GROSS LEAK P0455 EC-431
EC-8
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
Items
DTC*1 Reference page
(CONSULT-II screen terms)
EVAP PURG FLOW/MON P1447 EC-601
GI
EVAP SYS PRES SEN P0450 EC-419
EVAP SMALL LEAK P0440 EC-390
MA
EVAP SMALL LEAK P1440 EC-579
FR O2 SE HEATER-B1 P0135 EC-252
EM
FR O2 SE HEATER-B2 P0155 EC-252
FRONT O2 SENSOR-B1 P0130 EC-205
LC
FRONT O2 SENSOR-B1 P0131 EC-215
FRONT O2 SENSOR-B1 P0132 EC-223
FRONT O2 SENSOR-B1 P0133 EC-231
FRONT O2 SENSOR-B1 P0134 EC-244 FE
FRONT O2 SENSOR-B2 P0150 EC-205
FRONT O2 SENSOR-B2 P0151 EC-215 AT
FRONT O2 SENSOR-B2 P0152 EC-223
FRONT O2 SENSOR-B2 P0153 EC-231 AX
FRONT O2 SENSOR-B2 P0154 EC-244
FUEL LEVL SEN/CIRC P0464 EC-450 SU
FUEL LEVL SEN/CIRC P1464 EC-622
FUEL LEVEL SENSOR P0461 EC-448
BR
FUEL LV SE (SLOSH) P0460 EC-444
ST
FUEL SYS-LEAN/BK1 P0171 EC-304
FUEL SYS-LEAN/BK2 P0174 EC-304
RS
FUEL SYS-RICH/BK1 P0172 EC-312
FUEL SYS-RICH/BK2 P0175 EC-312
BT
FUEL TEMP SEN/CIRC P0180 EC-319
IACV/AAC VLV/CIRC P0505 EC-458
HA
IGN SIGNAL-PRIMARY P1320 EC-537
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