Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G20 P11 1999-2002 Approved G20-P11-2001 ec
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ENGINE CONTROL SYSTEM GI
SECTION EC MA
EM
LC
CONTENTS FE
TROUBLE DIAGNOSIS - INDEX ....................................8 ON BOARD DIAGNOSTIC SYSTEM
CL
Alphabetical & P No. Index for DTC ...........................8 DESCRIPTION ...............................................................67
PRECAUTIONS .............................................................14 Introduction ................................................................67 MT
Supplemental Restraint System (SRS) AIR Two Trip Detection Logic ...........................................67
BAG and SEAT BELT PRE-TENSIONER.............14 Emission-related Diagnostic Information ...................68
Precautions for On Board Diagnostic (OBD) Malfunction Indicator Lamp (MIL)..............................81 AT
System of Engine and A/T.........................................14 OBD System Operation Chart ...................................83
Engine Fuel & Emission Control System ..................15 CONSULT-II ...............................................................88
Precautions ................................................................16 Generic Scan Tool (GST) ........................................101
AX
Wiring Diagrams and Trouble Diagnosis...................17 TROUBLE DIAGNOSIS - INTRODUCTION................103
PREPARATION .............................................................18 Introduction ..............................................................103 SU
Special Service Tools ................................................18 Work Flow................................................................105
Commercial Service Tools .........................................18 TROUBLE DIAGNOSIS - BASIC INSPECTION .........107
ENGINE AND EMISSION CONTROL OVERALL Basic Inspection.......................................................107 BR
SYSTEM.........................................................................20 TROUBLE DIAGNOSIS - GENERAL
Engine Control Component Parts Location...............20 DESCRIPTION .............................................................123
Circuit Diagram ..........................................................24 DTC Inspection Priority Chart..................................123 ST
System Diagram ........................................................26 Fail-safe Chart .........................................................124
Vacuum Hose Drawing ..............................................27 Symptom Matrix Chart.............................................125
RS
System Chart .............................................................28 CONSULT-II Reference Value in Data Monitor
ENGINE AND EMISSION BASIC CONTROL Mode ........................................................................129
SYSTEM DESCRIPTION ...............................................29 Major Sensor Reference Graph in Data Monitor BT
Multiport Fuel Injection (MFI) System .......................29 Mode ........................................................................131
Distributor Ignition (DI) System .................................31 ECM Terminals and Reference Value .....................134
Air Conditioning Cut Control......................................32 TROUBLE DIAGNOSIS - SPECIFICATION VALUE ..142 HA
Fuel Cut Control (at no load & high engine Description ...............................................................142
speed) ........................................................................33 Testing Condition .....................................................142
Evaporative Emission System ...................................33 Inspection Procedure...............................................142
SC
On Board Refueling Vapor Recovery (ORVR) ..........39 Diagnostic Procedure ..............................................143
Positive Crankcase Ventilation ..................................48 TROUBLE DIAGNOSIS FOR INTERMITTENT EL
BASIC SERVICE PROCEDURE ...................................50 INCIDENT.....................................................................146
Fuel Pressure Release ..............................................50 Description ...............................................................146
Fuel Pressure Check .................................................50 Diagnostic Procedure ..............................................146 IDX
Fuel Pressure Regulator Check ................................51 TROUBLE DIAGNOSIS FOR POWER SUPPLY........147
Injector .......................................................................51 Main Power Supply and Ground Circuit..................147
Idle Speed/Ignition Timing/Idle Mixture Ratio DTC P0100 MASS AIR FLOW SENSOR (MAFS)......154
Adjustment .................................................................53 Component Description ...........................................154
Idle Air Volume Learning ...........................................65 CONSULT-II Reference Value in Data Monitor
Mode ........................................................................154
CONTENTS (Cont'd)
ECM Terminals and Reference Value .....................154 Component Description ...........................................196
On Board Diagnosis Logic.......................................155 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................155 Mode ........................................................................196
Overall Function Check ...........................................157 ECM Terminals and Reference Value .....................196
Wiring Diagram ........................................................158 On Board Diagnosis Logic.......................................197
Diagnostic Procedure ..............................................159 DTC Confirmation Procedure ..................................197
Component Inspection.............................................162 Overall Function Check ...........................................198
DTC P0105 ABSOLUTE PRESSURE SENSOR ........163 Wiring Diagram ........................................................199
Component Description ...........................................163 Diagnostic Procedure ..............................................200
On Board Diagnosis Logic.......................................163 Component Inspection.............................................202
DTC Confirmation Procedure ..................................163 DTC P0131 HEATED OXYGEN SENSOR 1
Diagnostic Procedure ..............................................164 (FRONT) (LEAN SHIFT MONITORING) .....................204
DTC P0110 INTAKE AIR TEMPERATURE Component Description ...........................................204
SENSOR ......................................................................165 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................165 Mode ........................................................................204
On Board Diagnosis Logic.......................................165 ECM Terminals and Reference Value .....................204
DTC Confirmation Procedure ..................................165 On Board Diagnosis Logic.......................................205
Wiring Diagram ........................................................167 DTC Confirmation Procedure ..................................205
Diagnostic Procedure ..............................................168 Overall Function Check ...........................................206
Component Inspection.............................................170 Diagnostic Procedure ..............................................206
DTC P0115 ENGINE COOLANT TEMPERATURE Component Inspection.............................................208
SENSOR (ECTS) (CIRCUIT) .......................................171 DTC P0132 HEATED OXYGEN SENSOR 1
Component Description ...........................................171 (FRONT) (RICH SHIFT MONITORING) ......................210
CONSULT-II Reference Value in Data Monitor Component Description ...........................................210
Mode ........................................................................171 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................171 Mode ........................................................................210
DTC Confirmation Procedure ..................................172 ECM Terminals and Reference Value .....................210
Wiring Diagram ........................................................173 On Board Diagnosis Logic.......................................211
Diagnostic Procedure ..............................................174 DTC Confirmation Procedure ..................................211
Component Inspection.............................................176 Overall Function Check ...........................................212
DTC P0120 THROTTLE POSITION SENSOR ...........177 Diagnostic Procedure ..............................................213
Component Description ...........................................177 Component Inspection.............................................215
CONSULT-II Reference Value in Data Monitor DTC P0133 HEATED OXYGEN SENSOR 1
Mode ........................................................................177 (FRONT) (RESPONSE MONITORING).......................217
ECM Terminals and Reference Value .....................178 Component Description ...........................................217
On Board Diagnosis Logic.......................................178 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................179 Mode ........................................................................217
Wiring Diagram ........................................................183 ECM Terminals and Reference Value .....................217
Diagnostic Procedure ..............................................184 On Board Diagnosis Logic.......................................218
Component Inspection.............................................188 DTC Confirmation Procedure ..................................218
DTC P0125 ENGINE COOLANT TEMPERATURE Overall Function Check ...........................................219
(ECT) SENSOR............................................................190 Wiring Diagram ........................................................220
Component Description ...........................................190 Diagnostic Procedure ..............................................221
CONSULT-II Reference Value in Data Monitor Component Inspection.............................................224
Mode ........................................................................190 DTC P0134 HEATED OXYGEN SENSOR 1
On Board Diagnosis Logic.......................................190 (FRONT) (HIGH VOLTAGE)........................................226
DTC Confirmation Procedure ..................................191 Component Description ...........................................226
Wiring Diagram ........................................................192 CONSULT-II Reference Value in Data Monitor
Diagnostic Procedure ..............................................193 Mode ........................................................................226
Component Inspection.............................................195 ECM Terminals and Reference Value .....................226
DTC P0130 HEATED OXYGEN SENSOR 1 On Board Diagnosis Logic.......................................227
(FRONT) (CIRCUIT).....................................................196 DTC Confirmation Procedure ..................................227
EC-2
CONTENTS (Cont'd)
Wiring Diagram ........................................................228 Component Description ...........................................261 GI
Diagnostic Procedure ..............................................229 CONSULT-II Reference Value in Data Monitor
Component Inspection.............................................230 Mode ........................................................................261
DTC P0135 HEATED OXYGEN SENSOR 1 ECM Terminals and Reference Value .....................261 MA
HEATER (FRONT).......................................................232 On Board Diagnosis Logic.......................................261
Description ...............................................................232 DTC Confirmation Procedure ..................................262
CONSULT-II Reference Value in Data Monitor Overall Function Check ...........................................262
EM
Mode ........................................................................232 Wiring Diagram ........................................................263
ECM Terminals and Reference Value .....................232 Diagnostic Procedure ..............................................264 LC
On Board Diagnosis Logic.......................................232 Component Inspection.............................................265
DTC Confirmation Procedure ..................................233 DTC P0141 HEATED OXYGEN SENSOR 2
Wiring Diagram ........................................................234 HEATER (REAR) .........................................................267
Diagnostic Procedure ..............................................235 Description ...............................................................267
Component Inspection.............................................236 CONSULT-II Reference Value in Data Monitor
DTC P0137 HEATED OXYGEN SENSOR 2 Mode ........................................................................267 FE
(REAR) (MIN. VOLTAGE MONITORING)...................237 ECM Terminals and Reference Value .....................267
Component Description ...........................................237 On Board Diagnosis Logic.......................................267 CL
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................268
Mode ........................................................................237 Wiring Diagram ........................................................269
ECM Terminals and Reference Value .....................237 Diagnostic Procedure ..............................................270 MT
On Board Diagnosis Logic.......................................237 Component Inspection.............................................271
DTC Confirmation Procedure ..................................238 DTC P0171 FUEL INJECTION SYSTEM
Overall Function Check ...........................................238 FUNCTION (LEAN SIDE) ............................................272 AT
Wiring Diagram ........................................................239 On Board Diagnosis Logic.......................................272
Diagnostic Procedure ..............................................240 DTC Confirmation Procedure ..................................272
AX
Component Inspection.............................................243 Wiring Diagram ........................................................274
DTC P0138 HEATED OXYGEN SENSOR 2 Diagnostic Procedure ..............................................275
(REAR) (MAX. VOLTAGE MONITORING) .................245 DTC P0172 FUEL INJECTION SYSTEM SU
Component Description ...........................................245 FUNCTION (RICH SIDE) .............................................279
CONSULT-II Reference Value in Data Monitor On Board Diagnosis Logic.......................................279
Mode ........................................................................245 DTC Confirmation Procedure ..................................279 BR
ECM Terminals and Reference Value .....................245 Wiring Diagram ........................................................281
On Board Diagnosis Logic.......................................245 Diagnostic Procedure ..............................................282
DTC Confirmation Procedure ..................................246 DTC P0180 FUEL TANK TEMPERATURE
ST
Overall Function Check ...........................................246 SENSOR ......................................................................286
Wiring Diagram ........................................................247 Component Description ...........................................286 RS
Diagnostic Procedure ..............................................248 On Board Diagnosis Logic.......................................286
Component Inspection.............................................251 DTC Confirmation Procedure ..................................286
DTC P0139 HEATED OXYGEN SENSOR 2 Wiring Diagram ........................................................288 BT
(REAR) (RESPONSE MONITORING).........................253 Diagnostic Procedure ..............................................289
Component Description ...........................................253 Component Inspection.............................................290
CONSULT-II Reference Value in Data Monitor DTC P0217 COOLANT OVERTEMPERATURE HA
Mode ........................................................................253 ENRICHMENT PROTECTION.....................................291
ECM Terminals and Reference Value .....................253 System Description..................................................291
SC
On Board Diagnosis Logic.......................................253 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................254 Mode ........................................................................291
Overall Function Check ...........................................254 ECM Terminals and Reference Value .....................292 EL
Wiring Diagram ........................................................255 On Board Diagnosis Logic.......................................292
Diagnostic Procedure ..............................................256 Possible Cause........................................................292
Component Inspection.............................................259 Overall Function Check ...........................................293 IDX
DTC P0140 HEATED OXYGEN SENSOR 2 Wiring Diagram ........................................................296
(REAR) (HIGH VOLTAGE) ..........................................261 Diagnostic Procedure ..............................................297
EC-3
CONTENTS (Cont'd)
Main 12 Causes of Overheating..............................308 Wiring Diagram ........................................................347
DTC P0300 - P0304 NO. 4 - 1 CYLINDER Diagnostic Procedure ..............................................348
MISFIRE, MULTIPLE CYLINDER MISFIRE ...............309 DTC P0420 THREE WAY CATALYST FUNCTION ...351
On Board Diagnosis Logic.......................................309 On Board Diagnosis Logic.......................................351
DTC Confirmation Procedure ..................................309 DTC Confirmation Procedure ..................................351
Diagnostic Procedure ..............................................310 Overall Function Check ...........................................352
Component Inspection.............................................315 Diagnostic Procedure ..............................................352
DTC P0325 KNOCK SENSOR (KS) ...........................316 DTC P0440 EVAP CONTROL SYSTEM (SMALL
Component Description ...........................................316 LEAK) (NEGATIVE PRESSURE)................................355
ECM Terminals and Reference Value .....................316 On Board Diagnosis Logic.......................................355
On Board Diagnosis Logic.......................................316 Possible Cause........................................................355
DTC Confirmation Procedure ..................................316 DTC Confirmation Procedure ..................................356
Wiring Diagram ........................................................317 Diagnostic Procedure ..............................................357
Diagnostic Procedure ..............................................318 DTC P0443 EVAP CANISTER PURGE VOLUME
Component Inspection.............................................319 CONTROL SOLENOID VALVE (CIRCUIT).................369
DTC P0335 CRANKSHAFT POSITION SENSOR Description ...............................................................369
(CKPS) (OBD)..............................................................320 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................320 Mode ........................................................................369
ECM Terminals and Reference Value .....................320 ECM Terminals and Reference Value .....................370
On Board Diagnosis Logic.......................................320 On Board Diagnosis Logic.......................................370
DTC Confirmation Procedure ..................................321 Possible Cause........................................................370
Wiring Diagram ........................................................322 DTC Confirmation Procedure ..................................371
Diagnostic Procedure ..............................................323 Wiring Diagram ........................................................372
Component Inspection.............................................325 Diagnostic Procedure ..............................................373
DTC P0340 CAMSHAFT POSITION SENSOR DTC P0446 EVAPORATIVE EMISSION (EVAP)
(CMPS).........................................................................326 CANISTER VENT CONTROL VALVE (CIRCUIT) ......376
Component Description ...........................................326 Component Description ...........................................376
ECM Terminals and Reference Value .....................326 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................327 Mode ........................................................................376
DTC Confirmation Procedure ..................................327 ECM Terminals and Reference Value .....................376
Wiring Diagram ........................................................329 On Board Diagnosis Logic.......................................376
Diagnostic Procedure ..............................................330 Possible Cause........................................................377
Component Inspection.............................................333 DTC Confirmation Procedure ..................................377
DTC P0400 EGR FUNCTION (CLOSE)......................334 Wiring Diagram ........................................................378
Description ...............................................................334 Diagnostic Procedure ..............................................379
CONSULT-II Reference Value in Data Monitor DTC P0450 EVAPORATIVE EMISSION (EVAP)
Mode ........................................................................335 CONTROL SYSTEM PRESSURE SENSOR ..............383
ECM Terminals and Reference Value .....................335 Component Description ...........................................383
On Board Diagnosis Logic.......................................335 CONSULT-II Reference Value in Data Monitor
Possible Cause........................................................336 Mode ........................................................................383
DTC Confirmation Procedure ..................................336 ECM Terminals and Reference Value .....................383
Wiring Diagram ........................................................338 On Board Diagnosis Logic.......................................384
Diagnostic Procedure ..............................................339 Possible Cause........................................................384
DTC P0403 EGR VOLUME CONTROL VALVE DTC Confirmation Procedure ..................................384
(CIRCUIT).....................................................................344 Wiring Diagram ........................................................386
Description ...............................................................344 Diagnostic Procedure ..............................................387
CONSULT-II Reference Value in Data Monitor DTC P0455 EVAP CONTROL SYSTEM (GROSS
Mode ........................................................................345 LEAK)...........................................................................396
ECM Terminals and Reference Value .....................345 On Board Diagnosis Logic.......................................396
On Board Diagnosis Logic.......................................345 Possible Cause........................................................396
Possible Cause........................................................346 DTC Confirmation Procedure ..................................397
DTC Confirmation Procedure ..................................346 Diagnostic Procedure ..............................................398
EC-4
CONTENTS (Cont'd)
DTC P0460 FUEL LEVEL SENSOR FUNCTION System Description..................................................440 GI
(SLOSH).......................................................................407 ECM Terminals and Reference Value .....................440
Component Description ...........................................407 On Board Diagnosis Logic.......................................440
ECM Terminals and Reference Value .....................407 DTC Confirmation Procedure ..................................440 MA
On Board Diagnostic Logic......................................407 Wiring Diagram ........................................................441
Possible Cause........................................................407 Diagnostic Procedure ..............................................442
DTC Confirmation Procedure ..................................408 DTC P0605 ECM .........................................................443
EM
Wiring Diagram ........................................................409 Component Description ...........................................443
Diagnostic Procedure ..............................................410 On Board Diagnosis Logic.......................................443 LC
DTC P0461 FUEL LEVEL SENSOR FUNCTION .......412 DTC Confirmation Procedure ..................................443
Component Description ...........................................412 Diagnostic Procedure ..............................................444
On Board Diagnostic Logic......................................412 DTC P1126 THERMOSTAT FUNCTION.....................445
Possible Cause........................................................412 On Board Diagnosis Logic.......................................445
Overall Function Check ...........................................412 Possible Cause........................................................445
DTC P0464 FUEL LEVEL SENSOR CIRCUIT ...........414 DTC Confirmation Procedure ..................................445 FE
Component Description ...........................................414 Diagnostic Procedure ..............................................446
ECM Terminals and Reference Value .....................414 DTC P1148 CLOSED LOOP CONTROL ....................447 CL
On Board Diagnostic Logic......................................414 On Board Diagnosis Logic.......................................447
Possible Cause........................................................414 DTC Confirmation Procedure ..................................447
DTC Confirmation Procedure ..................................415 Overall Function Check ...........................................448 MT
Wiring Diagram ........................................................416 Diagnostic Procedure ..............................................448
Diagnostic Procedure ..............................................417 DTC P1217 ENGINE OVER TEMPERATURE
DTC P0500 VEHICLE SPEED SENSOR (VSS) .........419 (OVERHEAT) ...............................................................449 AT
Component Description ...........................................419 System Description..................................................449
ECM Terminals and Reference Value .....................419 CONSULT-II Reference Value in Data Monitor
AX
On Board Diagnosis Logic.......................................419 Mode ........................................................................449
DTC Confirmation Procedure ..................................419 ECM Terminals and Reference Value .....................450
Overall Function Check ...........................................420 On Board Diagnosis Logic.......................................450 SU
Wiring Diagram ........................................................421 Overall Function Check ...........................................451
Diagnostic Procedure ..............................................422 Wiring Diagram ........................................................452
DTC P0505 IDLE AIR CONTROL VALVE (IACV) - Diagnostic Procedure ..............................................453 BR
AUXILIARY AIR CONTROL (AAC) VALVE ...............423 Main 12 Causes of Overheating..............................465
Description ...............................................................423 Component Inspection.............................................465
CONSULT-II Reference Value in Data Monitor DTC P1336 CRANKSHAFT POSITION SENSOR
ST
Mode ........................................................................424 (CKPS) (OBD) (COG)..................................................467
ECM Terminals and Reference Value .....................424 Component Description ...........................................467 RS
On Board Diagnosis Logic.......................................424 ECM Terminals and Reference Value .....................467
DTC Confirmation Procedure ..................................424 On Board Diagnosis Logic.......................................467
Wiring Diagram ........................................................426 DTC Confirmation Procedure ..................................468 BT
Diagnostic Procedure ..............................................427 Wiring Diagram ........................................................469
DTC P0510 CLOSED THROTTLE POSITION Diagnostic Procedure ..............................................470
SWITCH .......................................................................432 Component Inspection.............................................472 HA
Component Description ...........................................432 DTC P1401 EGR TEMPERATURE SENSOR.............473
CONSULT-II Reference Value in Data Monitor Component Description ...........................................473
SC
Mode ........................................................................432 On Board Diagnosis Logic.......................................473
ECM Terminals and Reference Value .....................432 Possible Cause........................................................473
On Board Diagnosis Logic.......................................432 DTC Confirmation Procedure ..................................474 EL
DTC Confirmation Procedure ..................................433 Wiring Diagram ........................................................476
Overall Function Check ...........................................433 Diagnostic Procedure ..............................................477
Wiring Diagram ........................................................434 DTC P1402 EGR FUNCTION (OPEN) ........................481 IDX
Diagnostic Procedure ..............................................435 Description ...............................................................481
DTC P0600 A/T CONTROL.........................................440
EC-5
CONTENTS (Cont'd)
CONSULT-II Reference Value in Data Monitor Possible Cause........................................................526
Mode ........................................................................482 DTC Confirmation Procedure ..................................526
ECM Terminals and Reference Value .....................482 Overall Function Check ...........................................527
On Board Diagnosis Logic.......................................482 Wiring Diagram ........................................................528
Possible Cause........................................................483 Diagnostic Procedure ..............................................529
DTC Confirmation Procedure ..................................483 DTC P1464 FUEL LEVEL SENSOR CIRCUIT
Wiring Diagram ........................................................485 (GROUND SIGNAL) ....................................................534
Diagnostic Procedure ..............................................486 Component Description ...........................................534
DTC P1440 EVAP CONTROL SYSTEM (SMALL ECM Terminals and Reference Value .....................534
LEAK) (POSITIVE PRESSURE) .................................491 On Board Diagnostic Logic......................................534
On Board Diagnosis Logic.......................................491 Possible Cause........................................................534
Possible Cause........................................................491 DTC Confirmation Procedure ..................................535
DTC Confirmation Procedure ..................................492 Wiring Diagram ........................................................536
Diagnostic Procedure ..............................................492 Diagnostic Procedure ..............................................537
DTC P1444 EVAP CANISTER PURGE VOLUME DTC P1490 VACUUM CUT VALVE BYPASS
CONTROL SOLENOID VALVE...................................493 VALVE (CIRCUIT)........................................................538
Description ...............................................................493 Description ...............................................................538
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................493 Mode ........................................................................538
ECM Terminals and Reference Value .....................494 ECM Terminals and Reference Value .....................538
On Board Diagnosis Logic.......................................494 On Board Diagnosis Logic.......................................539
Possible Cause........................................................494 Possible Cause........................................................539
DTC Confirmation Procedure ..................................495 DTC Confirmation Procedure ..................................539
Wiring Diagram ........................................................496 Wiring Diagram ........................................................540
Diagnostic Procedure ..............................................497 Diagnostic Procedure ..............................................541
DTC P1446 EVAPORATIVE EMISSION (EVAP) DTC P1491 VACUUM CUT VALVE BYPASS
CANISTER VENT CONTROL VALVE (CLOSE).........505 VALVE..........................................................................544
Component Description ...........................................505 Description ...............................................................544
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................505 Mode ........................................................................544
ECM Terminals and Reference Value .....................505 ECM Terminals and Reference Value .....................544
On Board Diagnosis Logic.......................................505 On Board Diagnosis Logic.......................................545
Possible Cause........................................................506 Possible Cause........................................................545
DTC Confirmation Procedure ..................................506 DTC Confirmation Procedure ..................................545
Wiring Diagram ........................................................507 Overall Function Check ...........................................546
Diagnostic Procedure ..............................................508 Wiring Diagram ........................................................547
DTC P1447 EVAPORATIVE EMISSION (EVAP) Diagnostic Procedure ..............................................548
CONTROL SYSTEM PURGE FLOW DTC P1605 A/T DIAGNOSIS COMMUNICATION
MONITORING ..............................................................513 LINE .............................................................................556
System Description..................................................513 System Description..................................................556
On Board Diagnosis Logic.......................................513 ECM Terminals and Reference Value .....................556
Possible Cause........................................................513 On Board Diagnosis Logic.......................................556
DTC Confirmation Procedure ..................................514 DTC Confirmation Procedure ..................................556
Overall Function Check ...........................................514 Wiring Diagram ........................................................557
Diagnostic Procedure ..............................................516 Diagnostic Procedure ..............................................558
DTC P1448 EVAPORATIVE EMISSION (EVAP) DTC P1706 PARK/NEUTRAL POSITION (PNP)
CANISTER VENT CONTROL VALVE (OPEN)...........525 SWITCH .......................................................................559
Component Description ...........................................525 Component Description ...........................................559
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................525 Mode ........................................................................559
ECM Terminals and Reference Value .....................525 ECM Terminals and Reference Value .....................559
On Board Diagnosis Logic.......................................525 On Board Diagnosis Logic.......................................559
EC-6
CONTENTS (Cont'd)
DTC Confirmation Procedure ..................................559 ECM Terminals and Reference Value .....................592 GI
Overall Function Check ...........................................560 Wiring Diagram ........................................................593
Wiring Diagram ........................................................561 Diagnostic Procedure ..............................................594
Diagnostic Procedure For M/T Models....................562 Component Inspection.............................................596 MA
Diagnostic Procedure For A/T Models ....................564 REFRIGERANT PRESSURE SENSOR ......................597
IGNITION SIGNAL.......................................................566 Description ...............................................................597
Component Description ...........................................566 ECM Terminals and Reference Value .....................597
EM
CONSULT-II Reference Value in Data Monitor Wiring Diagram ........................................................598
Mode ........................................................................566 Diagnostic Procedure ..............................................599 LC
ECM Terminals and Reference Value .....................566 ELECTRICAL LOAD SIGNAL.....................................602
Wiring Diagram ........................................................568 CONSULT-II Reference Value in Data Monitor
Diagnostic Procedure ..............................................569 Mode ........................................................................602
Component Inspection.............................................573 ECM Terminals and Reference Value .....................602
INJECTOR ...................................................................574 Wiring Diagram ........................................................603
Component Description ...........................................574 Diagnostic Procedure ..............................................605 FE
CONSULT-II Reference Value in Data Monitor MIL & DATA LINK CONNECTORS ............................609
Mode ........................................................................574 Wiring Diagram ........................................................609 CL
ECM Terminals and Reference Value .....................574 SERVICE DATA AND SPECIFICATIONS (SDS) .......610
Wiring Diagram ........................................................575 Fuel Pressure Regulator..........................................610
Diagnostic Procedure ..............................................576 Idle Speed and Ignition Timing................................610 MT
START SIGNAL...........................................................579 Ignition Coil ..............................................................610
CONSULT-II Reference Value in Data Monitor Mass Air Flow Sensor..............................................610
Mode ........................................................................579 Engine Coolant Temperature Sensor ......................610 AT
ECM Terminals and Reference Value .....................579 EGR Volume Control Valve .....................................610
Wiring Diagram ........................................................580 EGR Temperature Sensor .......................................610
AX
Diagnostic Procedure ..............................................581 Fuel Pump ...............................................................611
FUEL PUMP.................................................................583 IACV-AAC Valve ......................................................611
System Description..................................................583 Injector .....................................................................611 SU
Component Description ...........................................583 Resistor....................................................................611
CONSULT-II Reference Value in Data Monitor Throttle Position Sensor ..........................................611
Mode ........................................................................583 Heated Oxygen Sensor 1 Heater (Front) ................611 BR
ECM Terminals and Reference Value .....................584 Calculated Load Value.............................................611
Wiring Diagram ........................................................585 Intake Air Temperature Sensor................................611
Diagnostic Procedure ..............................................586 EVAP Canister Purge Volume Control Valve ..........611
ST
Component Inspection.............................................591 Heated Oxygen Sensor 2 Heater (Rear).................611
POWER STEERING OIL PRESSURE SWITCH.........592 Crankshaft Position Sensor (OBD)..........................611 RS
Component Description ...........................................592 Fuel Tank Temperature Sensor ...............................612
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................592 BT
HA
SC
EL
IDX
EC-7
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NCEC0001
ALPHABETICAL INDEX FOR DTC NCEC0001S01
Items
DTC*1 Reference page
(CONSULT-II screen terms)
Unable to access ECM -- EC-124
ABSL PRES SEN/CIRC P0105 EC-163
AIR TEMP SEN/CIRC P0110 EC-165
A/T 1ST GR FNCTN P0731 AT-128
A/T 2ND GR FNCTN P0732 AT-135
A/T 3RD GR FNCTN P0733 AT-141
A/T 4TH GR FNCTN P0734 AT-147
A/T COMM LINE P0600*2 EC-440
A/T DIAG COMM LINE P1605 EC-556
A/T TCC S/V FNCTN P0744 AT-163
ATF TEMP SEN/CIRC P0710 AT-113
CKP SEN/CIRCUIT P0335 EC-320
CKP SENSOR (COG) P1336 EC-467
CLOSED LOOP-B1 P1148 EC-447
CLOSED TP SW/CIRC P0510 EC-432
CMP SEN/CIRC P0340 EC-326
COOLANT T SEN/CIRC*3 P0115 EC-171
*COOLAN T SEN/CIRC P0125 EC-190
CYL 1 MISFIRE P0301 EC-309
CYL 2 MISFIRE P0302 EC-309
CYL 3 MISFIRE P0303 EC-309
CYL 4 MISFIRE P0304 EC-309
ECM P0605 EC-443
EGR SYSTEM P0400 EC-334
EGR SYSTEM P1402 EC-481
EGR TEMP SEN/CIRC P1401 EC-473
EGR VOL CONT/V CIR P0403 EC-344
ENGINE SPEED SIG P0725 AT-124
ENG OVER TEMP P0217 EC-291
ENG OVER TEMP P1217*2 EC-449
EVAP GROSS LEAK P0455 EC-396
EVAP PURG FLOW/MON P1447 EC-513
EVAP SYS PRES SEN P0450 EC-383
EVAP SMALL LEAK P0440 EC-355
EVAP SMALL LEAK P1440 EC-491
EC-8
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
Items
DTC*1 Reference page
(CONSULT-II screen terms)
GI
FUEL LEVL SEN/CIRC P0464 EC-414
FUEL LEVL SEN/CIRC P1464 EC-534
MA
FUEL LEVEL SENSOR P0461 EC-412
FUEL LEV SEN SLOSH P0460 EC-407
EM
FUEL SYS-LEAN/BK1 P0171 EC-272
FUEL SYS-RICH/BK1 P0172 EC-279 LC
FUEL TEMP SEN/CIRC P0180 EC-286
HO2S1 (B1) P0130 EC-196
HO2S1 (B1) P0131 EC-204
HO2S1 (B1) P0132 EC-210 FE
HO2S1 (B1) P0133 EC-217
HO2S1 (B1) P0134 EC-226 CL
HO2S1 HTR (B1) P0135 EC-232
HO2S2 (B1) P0137 EC-237 MT
HO2S2 (B1) P0138 EC-245
HO2S2 (B1) P0139 EC-253
AT
HO2S2 (B1) P0140 EC-261
AX
HO2S2 HTR (B1) P0141 EC-267
IACV/AAC VLV/CIRC P0505 EC-423
SU
KNOCK SEN/CIRC-B1 P0325*2 EC-316
L/PRES SOL/CIRC P0745 AT-174
BR
MAF SEN/CIRCUIT*3 P0100 EC-154
MULTI CYL MISFIRE P0300 EC-309
ST
NATS MALFUNCTION P1610 - P1615*2 EL-249
NO DTC IS DETECTED. FURTHER TESTING MAY BE RS
P0000 --
REQUIRED.
O/R CLTCH SOL/CIRC P1760 AT-202
BT
P-N POS SW/CIRCUIT P1706 EC-559
PNP SW/CIRC P0705 AT-107
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