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GI
ENGINE CONTROL SYSTEM
MA
SECTION EC EM
LC
FE
CONTENTS CL
TROUBLE DIAGNOSIS - INDEX ....................................9 Idle Speed/Ignition Timing/Idle Mixture Ratio
MT
Alphabetical Index .......................................................9 Adjustment .................................................................61
DTC No. Index...........................................................13 Accelerator Pedal Released Position Learning.........73
PRECAUTIONS .............................................................18 Throttle Valve Closed Position Learning ...................73 AT
Supplemental Restraint System (SRS) AIR Idle Air Volume Learning ...........................................73
BAG and SEAT BELT PRE-TENSIONER.............18 ON BOARD DIAGNOSTIC SYSTEM
Precautions for On Board Diagnostic (OBD) DESCRIPTION ...............................................................77 TF
System of Engine and A/T.........................................18 Introduction ................................................................77
Engine Fuel & Emission Control System ..................19 Two Trip Detection Logic ...........................................77
Precautions ................................................................20 Emission-related Diagnostic Information ...................78
PD
Wiring Diagrams and Trouble Diagnosis...................21 Malfunction Indicator Lamp (MIL)..............................94
PREPARATION .............................................................22 OBD System Operation Chart ...................................98 AX
Special Service Tools ................................................22 CONSULT-II Function (ENGINE).............................103
Commercial Service Tools .........................................23 Generic Scan Tool (GST) ........................................117
ENGINE AND EMISSION CONTROL OVERALL TROUBLE DIAGNOSIS - INTRODUCTION................119 SU
SYSTEM.........................................................................25 Introduction ..............................................................119
Engine Control Component Parts Location...............25 Work Flow................................................................121
Circuit Diagram ..........................................................30 TROUBLE DIAGNOSIS - BASIC INSPECTION .........123 BR
System Diagram ........................................................31 Basic Inspection.......................................................123
Vacuum Hose Drawing ..............................................32 TROUBLE DIAGNOSIS - GENERAL ST
System Chart .............................................................33 DESCRIPTION .............................................................129
ENGINE AND EMISSION BASIC CONTROL DTC Inspection Priority Chart..................................129
SYSTEM DESCRIPTION ...............................................34 Fail-safe Chart .........................................................130 RS
Multiport Fuel Injection (MFI) System .......................34 Symptom Matrix Chart.............................................131
Electronic Ignition (EI) System ..................................36 CONSULT-II Reference Value in Data Monitor
Air Conditioning Cut Control......................................37 Mode ........................................................................135 BT
Fuel Cut Control (at no load & high engine Major Sensor Reference Graph in Data Monitor
speed) ........................................................................38 Mode ........................................................................139
Evaporative Emission System ...................................38 ECM Terminals and Reference Value .....................141
HA
On Board Refueling Vapor Recovery (ORVR) ..........44 TROUBLE DIAGNOSIS - SPECIFICATION VALUE ..151
Positive Crankcase Ventilation ..................................53 Description ...............................................................151 SC
CAN Communication .................................................54 Testing Condition .....................................................151
Automatic Speed Control Device (ASCD) System....54 Inspection Procedure...............................................151
BASIC SERVICE PROCEDURE ...................................56 Diagnostic Procedure ..............................................152 EL
Fuel Pressure Release ..............................................56 TROUBLE DIAGNOSIS FOR INTERMITTENT
Fuel Pressure Check .................................................56 INCIDENT.....................................................................155
Fuel Pressure Regulator Check ................................57 Description ...............................................................155
IDX
Injector .......................................................................58 Diagnostic Procedure ..............................................155
How to Check Idle Speed and Ignition Timing..........59 POWER SUPPLY AND GROUND CIRCUIT ..............156
CONTENTS (Cont'd)
ECM Terminals and Reference Value .....................156 ECM Terminals and Reference Value .....................194
Wiring Diagram ........................................................157 On Board Diagnosis Logic.......................................195
Diagnostic Procedure ..............................................159 DTC Confirmation Procedure ..................................195
Ground Inspection ...................................................165 Wiring Diagram ........................................................196
DTC U1000, U1001 CAN COMMUNICATION LINE...166 Diagnostic Procedure ..............................................197
Description ...............................................................166 DTC P0112, P0113 IAT SENSOR ...............................200
On Board Diagnosis Logic.......................................166 Component Description ...........................................200
DTC Confirmation Procedure ..................................166 On Board Diagnosis Logic.......................................200
Wiring Diagram ........................................................167 DTC Confirmation Procedure ..................................200
Diagnostic Procedure ..............................................168 Wiring Diagram ........................................................201
DTC P0011, P0021 IVT CONTROL ............................169 Diagnostic Procedure ..............................................202
Description ...............................................................169 Component Inspection.............................................203
CONSULT-II Reference Value in Data Monitor DTC P0117, P0118 ECT SENSOR..............................204
Mode ........................................................................170 Component Description ...........................................204
On Board Diagnosis Logic.......................................170 On Board Diagnosis Logic.......................................204
DTC Confirmation Procedure ..................................170 DTC Confirmation Procedure ..................................205
Diagnostic Procedure ..............................................171 Wiring Diagram ........................................................206
Component Inspection.............................................172 Diagnostic Procedure ..............................................207
DTC P0031, P0032, P0051, P0052 HO2S1 DTC P0122, P0123 TP SENSOR................................210
HEATER.......................................................................173 Component Description ...........................................210
Description ...............................................................173 CONSULT-II Reference Value in Data Monitor
CONSULT-II Reference Value in Data Monitor Mode ........................................................................210
Mode ........................................................................173 ECM Terminals and Reference Value .....................210
ECM Terminals and Reference Value .....................173 On Board Diagnosis Logic.......................................211
On Board Diagnosis Logic.......................................174 DTC Confirmation Procedure ..................................211
DTC Confirmation Procedure ..................................174 Wiring Diagram ........................................................213
Wiring Diagram ........................................................176 Diagnostic Procedure ..............................................214
Diagnostic Procedure ..............................................178 Component Inspection.............................................216
DTC P0037, P0038, P0057, P0058 HO2S2 DTC P0125 ECT SENSOR..........................................217
HEATER.......................................................................181 Description ...............................................................217
Description ...............................................................181 On Board Diagnosis Logic.......................................217
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................218
Mode ........................................................................181 Diagnostic Procedure ..............................................218
ECM Terminals and Reference Value .....................181 DTC P0127 IAT SENSOR ...........................................220
On Board Diagnosis Logic.......................................182 Component Description ...........................................220
DTC Confirmation Procedure ..................................182 On Board Diagnosis Logic.......................................220
Wiring Diagram ........................................................183 DTC Confirmation Procedure ..................................220
Diagnostic Procedure ..............................................185 Diagnostic Procedure ..............................................221
DTC P0101 MAF SENSOR .........................................187 DTC P0128 THERMOSTAT FUNCTION.....................222
Component Description ...........................................187 On Board Diagnosis Logic.......................................222
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................222
Mode ........................................................................187 Diagnostic Procedure ..............................................223
ECM Terminals and Reference Value .....................187 DTC P0132, P0152 HO2S1 .........................................224
On Board Diagnosis Logic.......................................188 Component Description ...........................................224
DTC Confirmation Procedure ..................................188 CONSULT-II Reference Value in Data Monitor
Overall Function Check ...........................................189 Mode ........................................................................224
Wiring Diagram ........................................................190 ECM Terminals and Reference Value .....................224
Diagnostic Procedure ..............................................191 On Board Diagnosis Logic.......................................225
DTC P0102, P0103 MAF SENSOR.............................194 DTC Confirmation Procedure ..................................225
Component Description ...........................................194 Wiring Diagram ........................................................226
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................228
Mode ........................................................................194 DTC P0133, P0153 HO2S1 .........................................233
EC-2
CONTENTS (Cont'd) GI
Component Description ...........................................233 On Board Diagnosis Logic.......................................290
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................290 MA
Mode ........................................................................233 Diagnostic Procedure ..............................................291
ECM Terminals and Reference Value .....................233 DTC P0182, P0183 FTT SENSOR..............................293
On Board Diagnosis Logic.......................................234 Component Description ...........................................293 EM
DTC Confirmation Procedure ..................................234 On Board Diagnosis Logic.......................................293
Overall Function Check ...........................................235 DTC Confirmation Procedure ..................................293
Wiring Diagram ........................................................236 Wiring Diagram ........................................................295
LC
Diagnostic Procedure ..............................................238 Diagnostic Procedure ..............................................296
DTC P0134, P0154 HO2S1 .........................................246 DTC P0222, P0223 TP SENSOR................................298
Component Description ...........................................246 Component Description ...........................................298
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................246 Mode ........................................................................298 FE
ECM Terminals and Reference Value .....................246 ECM Terminals and Reference Value .....................298
On Board Diagnosis Logic.......................................247 On Board Diagnosis Logic.......................................299
DTC Confirmation Procedure ..................................247 DTC Confirmation Procedure ..................................299
CL
Overall Function Check ...........................................248 Wiring Diagram ........................................................301
Wiring Diagram ........................................................249 Diagnostic Procedure ..............................................302 MT
Diagnostic Procedure ..............................................251 Component Inspection.............................................304
DTC P0138, P0158 HO2S2 .........................................255 DTC P0300 - P0306 MULTIPLE CYLINDER
Component Description ...........................................255 MISFIRE, NO. 1 - 6 CYLINDER MISFIRE ..................305 AT
CONSULT-II Reference Value in Data Monitor On Board Diagnosis Logic.......................................305
Mode ........................................................................255 DTC Confirmation Procedure ..................................306
ECM Terminals and Reference Value .....................255 Diagnostic Procedure ..............................................307 TF
On Board Diagnosis Logic.......................................255 DTC P0327, P0328 KS................................................314
DTC Confirmation Procedure ..................................256 Component Description ...........................................314
PD
Wiring Diagram ........................................................257 ECM Terminals and Reference Value .....................314
Diagnostic Procedure ..............................................259 On Board Diagnosis Logic.......................................314
DTC P0139, P0159 HO2S2 .........................................263 DTC Confirmation Procedure ..................................314 AX
Component Description ...........................................263 Wiring Diagram ........................................................315
CONSULT-II Reference Value in Data Monitor Diagnostic Procedure ..............................................316
Mode ........................................................................263 DTC P0335 CKP SENSOR (POS) ..............................319 SU
ECM Terminals and Reference Value .....................263 Component Description ...........................................319
On Board Diagnosis Logic.......................................263 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................264 Mode ........................................................................319
BR
Overall Function Check ...........................................264 On Board Diagnosis Logic.......................................319
Wiring Diagram ........................................................266 DTC Confirmation Procedure ..................................320 ST
Diagnostic Procedure ..............................................268 Wiring Diagram ........................................................321
DTC P0171, P0174 FUEL INJECTION SYSTEM Diagnostic Procedure ..............................................322
FUNCTION ...................................................................273 Component Inspection.............................................325 RS
On Board Diagnosis Logic.......................................273 DTC P0340, P0345 CMP SENSOR (PHASE) ............326
DTC Confirmation Procedure ..................................273 Component Description ...........................................326
Wiring Diagram ........................................................275 On Board Diagnosis Logic.......................................326 BT
Diagnostic Procedure ..............................................277 DTC Confirmation Procedure ..................................326
DTC P0172, P0175 FUEL INJECTION SYSTEM Wiring Diagram ........................................................328 HA
FUNCTION ...................................................................282 Diagnostic Procedure ..............................................330
On Board Diagnosis Logic.......................................282 Component Inspection.............................................333
DTC Confirmation Procedure ..................................282 DTC P0420, P0430 THREE WAY CATALYST SC
Wiring Diagram ........................................................284 FUNCTION ...................................................................334
Diagnostic Procedure ..............................................286 On Board Diagnosis Logic.......................................334
DTC P0181 FTT SENSOR ..........................................290 DTC Confirmation Procedure ..................................334 EL
Component Description ...........................................290 Overall Function Check ...........................................335
IDX
EC-3
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................335 Diagnostic Procedure ..............................................396
DTC P0441 EVAP CONTROL SYSTEM.....................339 DTC P0456 EVAP CONTROL SYSTEM.....................407
System Description..................................................339 On Board Diagnosis Logic.......................................407
On Board Diagnosis Logic.......................................339 DTC Confirmation Procedure ..................................408
DTC Confirmation Procedure ..................................340 Overall Function Check ...........................................409
Overall Function Check ...........................................340 Diagnostic Procedure ..............................................410
Diagnostic Procedure ..............................................342 DTC P0460 FUEL LEVEL SENSOR...........................423
DTC P0442 EVAP CONTROL SYSTEM.....................349 Component Description ...........................................423
On Board Diagnosis Logic.......................................349 On Board Diagnostic Logic......................................423
DTC Confirmation Procedure ..................................350 DTC Confirmation Procedure ..................................423
Diagnostic Procedure ..............................................351 Diagnostic Procedure ..............................................424
DTC P0444, P0445 EVAP CANISTER PURGE DTC P0461 FUEL LEVEL SENSOR...........................425
VOLUME CONTROL SOLENOID VALVE ..................364 Component Description ...........................................425
Description ...............................................................364 On Board Diagnostic Logic......................................425
CONSULT-II Reference Value in Data Monitor Overall Function Check ...........................................425
Mode ........................................................................364 Diagnostic Procedure ..............................................426
ECM Terminals and Reference Value .....................365 DTC P0462, P0463 FUEL LEVEL SENSOR ..............428
On Board Diagnosis Logic.......................................365 Component Description ...........................................428
DTC Confirmation Procedure ..................................366 On Board Diagnostic Logic......................................428
Wiring Diagram ........................................................367 DTC Confirmation Procedure ..................................428
Diagnostic Procedure ..............................................368 Diagnostic Procedure ..............................................429
DTC P0447 EVAP CANISTER VENT CONTROL DTC P0500 VSS ..........................................................430
VALVE..........................................................................371 Description ...............................................................430
Component Description ...........................................371 On Board Diagnosis Logic.......................................430
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................430
Mode ........................................................................371 Overall Function Check ...........................................431
ECM Terminals and Reference Value .....................371 Diagnostic Procedure ..............................................431
On Board Diagnosis Logic.......................................371 DTC P0506 ISC SYSTEM ...........................................432
DTC Confirmation Procedure ..................................372 Description ...............................................................432
Wiring Diagram ........................................................373 On Board Diagnosis Logic.......................................432
Diagnostic Procedure ..............................................374 DTC Confirmation Procedure ..................................432
DTC P0452 EVAP SYSTEM PRESSURE SENSOR ..378 Diagnostic Procedure ..............................................433
Component Description ...........................................378 DTC P0507 ISC SYSTEM ...........................................434
CONSULT-II Reference Value in Data Monitor Description ...............................................................434
Mode ........................................................................378 On Board Diagnosis Logic.......................................434
ECM Terminals and Reference Value .....................378 DTC Confirmation Procedure ..................................434
On Board Diagnosis Logic.......................................378 Diagnostic Procedure ..............................................435
DTC Confirmation Procedure ..................................379 DTC P0550 PSP SENSOR..........................................436
Wiring Diagram ........................................................380 Component Description ...........................................436
Diagnostic Procedure ..............................................381 CONSULT-II Reference Value in Data Monitor
DTC P0453 EVAP SYSTEM PRESSURE SENSOR ..384 Mode ........................................................................436
Component Description ...........................................384 On Board Diagnosis Logic.......................................436
CONSULT-II Reference Value in Data Monitor DTC Confirmation Procedure ..................................436
Mode ........................................................................384 Wiring Diagram ........................................................437
ECM Terminals and Reference Value .....................384 Diagnostic Procedure ..............................................438
On Board Diagnosis Logic.......................................385 Component Inspection.............................................440
DTC Confirmation Procedure ..................................385 DTC P0605 ECM .........................................................441
Wiring Diagram ........................................................386 Component Description ...........................................441
Diagnostic Procedure ..............................................387 On Board Diagnosis Logic.......................................441
DTC P0455 EVAP CONTROL SYSTEM.....................394 DTC Confirmation Procedure ..................................441
On Board Diagnosis Logic.......................................394 Diagnostic Procedure ..............................................442
DTC Confirmation Procedure ..................................395 DTC P1065 ECM POWER SUPPLY (BACK UP).......443
EC-4
CONTENTS (Cont'd) GI
Component Description ...........................................443 On Board Diagnosis Logic.......................................472
ECM Terminals and Reference Value .....................443 DTC Confirmation Procedure ..................................472 MA
On Board Diagnosis Logic.......................................443 Wiring Diagram ........................................................474
DTC Confirmation Procedure ..................................443 Diagnostic Procedure ..............................................475
Wiring Diagram ........................................................445 Component Inspection.............................................476 EM
Diagnostic Procedure ..............................................446 DTC P1130 SWIRL CONTROL VALVE CONTROL
DTC P1110, P1135 IVT CONTROL.............................448 SOLENOID VALVE......................................................477
Description ...............................................................448 Description ...............................................................477
LC
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................448 Mode ........................................................................478
On Board Diagnosis Logic.......................................449 ECM Terminals and Reference Value .....................478
DTC Confirmation Procedure ..................................449 On Board Diagnosis Logic.......................................479
Diagnostic Procedure ..............................................450 DTC Confirmation Procedure ..................................479 FE
DTC P1111, P1136 IVT CONTROL SOLENOID Wiring Diagram ........................................................481
VALVE..........................................................................451 Diagnostic Procedure ..............................................482
Component Description ...........................................451 DTC P1131 SWIRL CONTROL VALVE CONTROL
CL
CONSULT-II Reference Value in Data Monitor SOLENOID VALVE......................................................498
Mode ........................................................................451 Component Description ...........................................498 MT
ECM Terminals and Reference Value .....................451 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................452 Mode ........................................................................498
DTC Confirmation Procedure ..................................452 ECM Terminals and Reference Value .....................498 AT
Wiring Diagram ........................................................453 On Board Diagnosis Logic.......................................498
Diagnostic Procedure ..............................................455 DTC Confirmation Procedure ..................................499
DTC P1121 ELECTRIC THROTTLE CONTROL Wiring Diagram ........................................................500 TF
ACTUATOR .................................................................457 Diagnostic Procedure ..............................................501
Component Description ...........................................457 DTC P1143, P1163 HO2S1 .........................................504
PD
On Board Diagnosis Logic.......................................457 Component Description ...........................................504
DTC Confirmation Procedure ..................................457 CONSULT-II Reference Value in Data Monitor
Diagnostic Procedure ..............................................458 Mode ........................................................................504 AX
DTC P1122 ELECTRIC THROTTLE CONTROL ECM Terminals and Reference Value .....................504
FUNCTION ...................................................................459 On Board Diagnosis Logic.......................................505
Description ...............................................................459 DTC Confirmation Procedure ..................................505 SU
ECM Terminals and Reference Value .....................459 Overall Function Check ...........................................506
On Board Diagnosis Logic.......................................460 Diagnostic Procedure ..............................................507
DTC Confirmation Procedure ..................................460 DTC P1144, P1164 HO2S1 .........................................512
BR
Wiring Diagram ........................................................461 Component Description ...........................................512
Diagnostic Procedure ..............................................462 CONSULT-II Reference Value in Data Monitor ST
Component Inspection.............................................466 Mode ........................................................................512
DTC P1124, P1126 THROTTLE CONTROL ECM Terminals and Reference Value .....................512
MOTOR RELAY...........................................................467 On Board Diagnosis Logic.......................................513 RS
Component Description ...........................................467 DTC Confirmation Procedure ..................................513
CONSULT-II Reference Value in Data Monitor Overall Function Check ...........................................514
Mode ........................................................................467 Diagnostic Procedure ..............................................515 BT
ECM Terminals and Reference Value .....................467 DTC P1146, P1166 HO2S2 .........................................521
On Board Diagnosis Logic.......................................467 Component Description ...........................................521 HA
DTC Confirmation Procedure ..................................468 CONSULT-II Reference Value in Data Monitor
Wiring Diagram ........................................................469 Mode ........................................................................521
Diagnostic Procedure ..............................................470 ECM Terminals and Reference Value .....................521 SC
Component Inspection.............................................471 On Board Diagnosis Logic.......................................521
DTC P1128 THROTTLE CONTROL MOTOR.............472 DTC Confirmation Procedure ..................................522
Component Description ...........................................472 Overall Function Check ...........................................522 EL
ECM Terminals and Reference Value .....................472 Wiring Diagram ........................................................524
IDX
EC-5
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................526 ECM Terminals and Reference Value .....................562
DTC P1147, P1167 HO2S2 .........................................531 On Board Diagnosis Logic.......................................562
Component Description ...........................................531 DTC Confirmation Procedure ..................................562
CONSULT-II Reference Value in Data Monitor Wiring Diagram ........................................................564
Mode ........................................................................531 Diagnostic Procedure ..............................................565
ECM Terminals and Reference Value .....................531 DTC P1442 EVAP CONTROL SYSTEM.....................567
On Board Diagnosis Logic.......................................531 On Board Diagnosis Logic.......................................567
DTC Confirmation Procedure ..................................532 DTC Confirmation Procedure ..................................568
Overall Function Check ...........................................532 Diagnostic Procedure ..............................................569
Wiring Diagram ........................................................534 DTC P1444 EVAP CANISTER PURGE VOLUME
Diagnostic Procedure ..............................................536 CONTROL SOLENOID VALVE...................................582
DTC P1148, P1168 CLOSED LOOP CONTROL........541 Description ...............................................................582
On Board Diagnosis Logic.......................................541 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................541 Mode ........................................................................582
Overall Function Check ...........................................542 ECM Terminals and Reference Value .....................583
Diagnostic Procedure ..............................................542 On Board Diagnosis Logic.......................................583
DTC P1165 SWIRL CONTROL VALVE CONTROL DTC Confirmation Procedure ..................................583
VACUUM CHECK SWITCH.........................................543 Wiring Diagram ........................................................585
Component Description ...........................................543 Diagnostic Procedure ..............................................586
CONSULT-II Reference Value in Data Monitor DTC P1446 EVAP CANISTER VENT CONTROL
Mode ........................................................................543 VALVE..........................................................................594
ECM Terminals and Reference Value .....................543 Component Description ...........................................594
On Board Diagnosis Logic.......................................544 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................544 Mode ........................................................................594
Wiring Diagram ........................................................545 ECM Terminals and Reference Value .....................594
Diagnostic Procedure ..............................................546 On Board Diagnosis Logic.......................................594
DTC P1211 ABS/TCS CONTROL UNIT .....................549 DTC Confirmation Procedure ..................................595
Description ...............................................................549 Wiring Diagram ........................................................596
On Board Diagnosis Logic.......................................549 Diagnostic Procedure ..............................................597
DTC Confirmation Procedure ..................................549 DTC P1448 EVAP CANISTER VENT CONTROL
Diagnostic Procedure ..............................................550 VALVE..........................................................................602
DTC P1212 ABS/TCS COMMUNICATION LINE........551 Component Description ...........................................602
Description ...............................................................551 CONSULT-II Reference Value in Data Monitor
On Board Diagnosis Logic.......................................551 Mode ........................................................................602
DTC Confirmation Procedure ..................................551 ECM Terminals and Reference Value .....................602
Diagnostic Procedure ..............................................552 On Board Diagnosis Logic.......................................602
DTC P1217 ENGINE OVER TEMPERATURE............553 DTC Confirmation Procedure ..................................603
On Board Diagnosis Logic.......................................553 Overall Function Check ...........................................604
Overall Function Check ...........................................553 Wiring Diagram ........................................................605
Diagnostic Procedure ..............................................554 Diagnostic Procedure ..............................................606
Main 12 Causes of Overheating..............................557 DTC P1456 EVAP CONTROL SYSTEM.....................611
DTC P1225 TP SENSOR ............................................558 On Board Diagnosis Logic.......................................611
Component Description ...........................................558 DTC Confirmation Procedure ..................................612
On Board Diagnosis Logic.......................................558 Overall Function Check ...........................................613
DTC Confirmation Procedure ..................................558 Diagnostic Procedure ..............................................614
Diagnostic Procedure ..............................................559 DTC P1490 VACUUM CUT VALVE BYPASS
DTC P1226 TP SENSOR ............................................560 VALVE..........................................................................627
Component Description ...........................................560 Description ...............................................................627
On Board Diagnosis Logic.......................................560 CONSULT-II Reference Value in Data Monitor
DTC Confirmation Procedure ..................................560 Mode ........................................................................627
Diagnostic Procedure ..............................................561 ECM Terminals and Reference Value .....................627
DTC P1229 SENSOR POWER SUPPLY....................562 On Board Diagnosis Logic.......................................628
EC-6
CONTENTS (Cont'd) GI
DTC Confirmation Procedure ..................................628 Diagnostic Procedure ..............................................672
Wiring Diagram ........................................................629 Component Inspection.............................................674 MA
Diagnostic Procedure ..............................................630 DTC P2122, P2123 APP SENSOR .............................675
DTC P1491 VACUUM CUT VALVE BYPASS Component Description ...........................................675
VALVE..........................................................................633 CONSULT-II Reference Value in Data Monitor EM
Description ...............................................................633 Mode ........................................................................675
CONSULT-II Reference Value in Data Monitor ECM Terminals and Reference Value .....................675
Mode ........................................................................633 On Board Diagnosis Logic.......................................676
LC
ECM Terminals and Reference Value .....................633 DTC Confirmation Procedure ..................................677
On Board Diagnosis Logic.......................................634 Wiring Diagram ........................................................678
DTC Confirmation Procedure ..................................634 Diagnostic Procedure ..............................................679
Overall Function Check ...........................................635 Component Inspection.............................................681
Wiring Diagram ........................................................636 DTC P2127, P2128 APP SENSOR .............................682 FE
Diagnostic Procedure ..............................................637 Component Description ...........................................682
DTC P1564 ASCD STEERING SWITCH ....................645 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................645 Mode ........................................................................682
CL
CONSULT-II Reference Value in Data Monitor ECM Terminals and Reference Value .....................682
Mode ........................................................................645 On Board Diagnosis Logic.......................................683 MT
ECM Terminals and Reference Value .....................645 DTC Confirmation Procedure ..................................684
On Board Diagnosis Procedure...............................646 Wiring Diagram ........................................................685
DTC Confirmation Procedure ..................................646 Diagnostic Procedure ..............................................686 AT
Wiring Diagram ........................................................647 Component Inspection.............................................689
Diagnostic Procedure ..............................................648 DTC P2135 TP SENSOR ............................................690
Component Inspection.............................................651 Component Description ...........................................690 TF
DTC P1572 ASCD BRAKE SWITCH..........................652 CONSULT-II Reference Value in Data Monitor
Component Description ...........................................652 Mode ........................................................................690
PD
CONSULT-II Reference Value in Data Monitor ECM Terminals and Reference Value .....................690
Mode ........................................................................652 On Board Diagnosis Logic.......................................691
ECM Terminals and Reference Value .....................652 DTC Confirmation Procedure ..................................691 AX
On Board Diagnosis Procedure...............................653 Wiring Diagram ........................................................693
DTC Confirmation Procedure ..................................653 Diagnostic Procedure ..............................................694
Wiring Diagram ........................................................655 Component Inspection.............................................696 SU
Diagnostic Procedure ..............................................656 DTC P2138 APP SENSOR..........................................697
Component Inspection.............................................661 Component Description ...........................................697
DTC P1706 PNP SWITCH...........................................663 CONSULT-II Reference Value in Data Monitor
BR
Component Description ...........................................663 Mode ........................................................................697
CONSULT-II Reference Value in Data Monitor ECM Terminals and Reference Value .....................697 ST
Mode ........................................................................663 On Board Diagnosis Logic.......................................698
ECM Terminals and Reference Value .....................663 DTC Confirmation Procedure ..................................699
On Board Diagnosis Logic.......................................663 Wiring Diagram ........................................................700 RS
DTC Confirmation Procedure ..................................663 Diagnostic Procedure ..............................................701
Overall Function Check ...........................................664 Component Inspection.............................................704
Wiring Diagram ........................................................665 VARIABLE INDUCTION AIR CONTROL SYSTEM BT
Diagnostic Procedure ..............................................666 (VIAS)...........................................................................705
DTC P1805 BRAKE SWITCH .....................................669 Description ...............................................................705 HA
Description ...............................................................669 ECM Terminals and Reference Value .....................706
CONSULT-II Reference Value in Data Monitor Wiring Diagram ........................................................707
Mode ........................................................................669 Diagnostic Procedure ..............................................708 SC
ECM Terminals and Reference Value .....................669 IGNITION SIGNAL.......................................................714
On Board Diagnosis Logic.......................................669 Component Description ...........................................714
DTC Confirmation Procedure ..................................670 ECM Terminals and Reference Value .....................714 EL
Wiring Diagram ........................................................671 Wiring Diagram ........................................................715
IDX
EC-7
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................718 Diagnostic Procedure ..............................................743
INJECTOR ...................................................................724 ASCD INDICATOR LAMP...........................................749
Component Description ...........................................724 Component Description ...........................................749
CONSULT-II Reference Value in Data Monitor CONSULT-II Reference Value in Data Monitor
Mode ........................................................................724 Mode ........................................................................749
ECM Terminals and Reference Value .....................724 Wiring Diagram ........................................................750
Wiring Diagram ........................................................725 Diagnostic Procedure ..............................................751
Diagnostic Procedure ..............................................726 ELECTRICAL LOAD SIGNAL.....................................752
FUEL PUMP.................................................................729 ECM Terminals and Reference Value .....................752
System Description..................................................729 Wiring Diagram ........................................................753
Component Description ...........................................729 Diagnostic Procedure ..............................................754
CONSULT-II Reference Value in Data Monitor MIL & DATA LINK CONNECTORS ............................757
Mode ........................................................................729 Wiring Diagram ........................................................757
ECM Terminals and Reference Value .....................730 SERVICE DATA AND SPECIFICATIONS (SDS) .......758
Wiring Diagram ........................................................731 Fuel Pressure Regulator..........................................758
Diagnostic Procedure ..............................................732 Idle Speed and Ignition Timing................................758
REFRIGERANT PRESSURE SENSOR ......................736 Mass Air Flow Sensor..............................................758
Description ...............................................................736 Engine Coolant Temperature Sensor ......................758
ECM Terminals and Reference Value .....................736 Heated Oxygen Sensor 1 Heater ............................758
Wiring Diagram ........................................................737 Heated Oxygen Sensor 2 Heater ............................758
Diagnostic Procedure ..............................................738 Fuel Pump ...............................................................758
ASCD BRAKE SWITCH ..............................................741 Injector .....................................................................758
Component Description ...........................................741 Calculated Load Value.............................................758
CONSULT-II Reference Value in Data Monitor Intake Air Temperature Sensor................................759
Mode ........................................................................741 Fuel Tank Temperature Sensor ...............................759
ECM Terminals and Reference Value .....................741 Crankshaft Position Sensor (POS)..........................759
Wiring Diagram ........................................................742 Camshaft Position Sensor (PHASE) .......................759
EC-8
TROUBLE DIAGNOSIS -- INDEX
Alphabetical Index
Alphabetical Index NAEC0001
GI
NOTE:
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