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ENGINE CONTROL SYSTEM


B ENGINE

                                                                                                                                                                       A


                                                                                                                                                                       EC
                                                                                                       SECTION
                                                                           ENGINE CONTROL SYSTEM                                                                       C


                                                                                                                                                                       D


                                                                                                                                                                       E
                                                                    CONTENTS
INDEX FOR DTC ....................................................... 8     .         Trouble Diagnosis Introduction .............................. 71         .       F
  Alphabetical Index ................................................... 8  .         DTC Inspection Priority Chart ................................ 74        .
  DTC No. Index ...................................................... 12   .         Fail-safe Chart ....................................................... 76
                                                                                                                                                               .
PRECAUTIONS ....................................................... 16      .         Basic Inspection .................................................... 77 .       G
  Precautions for Supplemental Restraint System                                       Symptom Matrix Chart ........................................... 82      .
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                             Engine Control Component Parts Location ........... 86                   .
  SIONER" ............................................................... 16.         Circuit Diagram ...................................................... 92.
                                                                                                                                                                       H
  On Board Diagnostic (OBD) System of Engine and                                      ECM Harness Connector Terminal Layout ............ 96                    .
  A/T ......................................................................... 16
                                                                            .         ECM Terminals and Reference Value .................... 96                .
  Precaution ............................................................. 16
                                                                            .         CONSULT-II Function .......................................... 105       .
  Wiring Diagrams and Trouble Diagnosis ............... 19                  .         Generic Scan Tool (GST) Function ...................... 117              .        I
PREPARATION ........................................................ 20     .         CONSULT-II Reference Value in Data Monitor Mode
  Special Service Tools ............................................ 20     .                                                                                  . 119
  Commercial Service Tools ..................................... 21         .         Major Sensor Reference Graph in Data Monitor                                     J
ENGINE CONTROL SYSTEM ................................. 22                  .         Mode .................................................................... 122
                                                                                                                                                               .
  System Diagram .................................................... 22    .        TROUBLE DIAGNOSIS - SPECIFICATION VALUE 125                               .
  Vacuum Hose Drawing .......................................... 23         .         Description ........................................................... 125
                                                                                                                                                               .
                                                                                                                                                                       K
  System Chart ........................................................ 24  .         Testing Condition ................................................. 125  .
  Multiport Fuel Injection (MFI) System ................... 25              .         Inspection Procedure ........................................... 125     .
  Electronic Ignition (EI) System .............................. 27         .         Diagnostic Procedure .......................................... 126      .
  Air Conditioning Cut Control .................................. 28        .        TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-                                          L
  Fuel Cut Control (at No Load and High Engine                                       DENT ...................................................................... 129
                                                                                                                                                               .
  Speed) ................................................................... 28
                                                                            .         Description ........................................................... 129
                                                                                                                                                               .
  CAN communication ............................................. 29        .         Diagnostic Procedure .......................................... 129      .       M
BASIC SERVICE PROCEDURE ............................. 30                    .        POWER SUPPLY AND GROUND CIRCUIT .......... 130                            .
  Idle Speed and Ignition Timing Check ................... 30               .         Wiring Diagram .................................................... 130  .
  Idle Speed/Ignition Timing/Idle Mixture Ratio                                       Diagnostic Procedure .......................................... 133      .
  Adjustment ............................................................ 31.         Ground Inspection ............................................... 138    .
  Accelerator Pedal Released Position Learning ..... 42                     .        DTC U1000, U1001 CAN COMMUNICATION LINE. 139
  Throttle Valve Closed Position Learning ............... 42                .         Description ........................................................... 139
                                                                                                                                                               .
  Idle Air Volume Learning ....................................... 42       .         On Board Diagnosis Logic ................................... 139         .
  Fuel Pressure Check ............................................. 44      .         DTC Confirmation Procedure .............................. 139            .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 46                             .         Wiring Diagram .................................................... 140  .
  Introduction ........................................................... 46
                                                                            .         Diagnostic Procedure .......................................... 141      .
  Two Trip Detection Logic ....................................... 46       .        DTC P0011, P0021 IVT CONTROL ....................... 142                  .
  Emission-related Diagnostic Information ............... 47                .         Description ........................................................... 142
                                                                                                                                                               .
  IVIS (Infiniti Vehicle Immobilizer System -- NATS) 62                     ...       CONSULT-II Reference Value in Data Monitor Mode
  Malfunction Indicator Lamp (MIL) .......................... 62            .                                                                                  . 142
  OBD System Operation Chart ............................... 66             .         On Board Diagnosis Logic ................................... 143         .
TROUBLE DIAGNOSIS ........................................... 71            .


                                                                               EC-1
 DTC Confirmation Procedure .............................. 143         .       DTC P0122, P0123 TP SENSOR ........................... 186         .
 Diagnostic Procedure .......................................... 144   .        Component Description ....................................... 186 .
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER 145                        .        CONSULT-II Reference Value in Data Monitor Mode
 Description ........................................................... 145
                                                                       .                                                                          .186
 CONSULT-II Reference Value in Data Monitor Mode                                On Board Diagnosis Logic ................................... 186  .
                                                                       . 145    DTC Confirmation Procedure ............................... 187    .
 On Board Diagnosis Logic ................................... 145      .        Wiring Diagram .................................................... 188
                                                                                                                                                  .
 DTC Confirmation Procedure .............................. 146         .        Diagnostic Procedure ........................................... 189
                                                                                                                                                  .
 Wiring Diagram .................................................... 147
                                                                       .        Component Inspection ......................................... 192.
 Diagnostic Procedure .......................................... 150   .        Removal and Installation ...................................... 192
                                                                                                                                                  .
 Component Inspection ......................................... 152    .       DTC P0125 ECT SENSOR ..................................... 193     .
 Removal and Installation ..................................... 152    .        Component Description ....................................... 193 .
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER 153                        .        On Board Diagnosis Logic ................................... 193  .
 Description ........................................................... 153
                                                                       .        DTC Confirmation Procedure ............................... 194    .
 CONSULT-II Reference Value in Data Monitor Mode                                Diagnostic Procedure ........................................... 194
                                                                                                                                                  .
                                                                       . 153    Component Inspection ......................................... 195.
 On Board Diagnosis Logic ................................... 153      .        Removal and Installation ...................................... 195
                                                                                                                                                  .
 DTC Confirmation Procedure .............................. 154         .       DTC P0127 IAT SENSOR ....................................... 196   .
 Wiring Diagram .................................................... 155
                                                                       .        Component Description ....................................... 196 .
 Diagnostic Procedure .......................................... 158   .        On Board Diagnosis Logic ................................... 196  .
 Component Inspection ......................................... 160    .        DTC Confirmation Procedure ............................... 196    .
 Removal and Installation ..................................... 160    .        Diagnostic Procedure ........................................... 197
                                                                                                                                                  .
DTC P0101 MAF SENSOR .................................... 161          .        Component Inspection ......................................... 198.
 Component Description ....................................... 161     .        Removal and Installation ...................................... 198
                                                                                                                                                  .
 CONSULT-II Reference Value in Data Monitor Mode                               DTC P0128 THERMOSTAT FUNCTION ................ 199                 .
                                                                       . 161    On Board Diagnosis Logic ................................... 199  .
 On Board Diagnosis Logic ................................... 161      .        DTC Confirmation Procedure ............................... 199    .
 DTC Confirmation Procedure .............................. 162         .        Diagnostic Procedure ........................................... 199
                                                                                                                                                  .
 Overall Function Check ....................................... 163    .        Component Inspection ......................................... 200.
 Wiring Diagram .................................................... 164
                                                                       .        Removal and Installation ...................................... 200
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 165   .       DTC P0132, P0152 HO2S1 .................................... 201    .
 Component Inspection ......................................... 168    .        Component Description ....................................... 201 .
 Removal and Installation ..................................... 168    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0102, P0103 MAF SENSOR ........................ 169               .                                                                          .201
 Component Description ....................................... 169     .        On Board Diagnosis Logic ................................... 201  .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 202    .
                                                                       . 169    Wiring Diagram .................................................... 203
                                                                                                                                                  .
 On Board Diagnosis Logic ................................... 169      .        Diagnostic Procedure ........................................... 206
                                                                                                                                                  .
 DTC Confirmation Procedure .............................. 170         .        Component Inspection ......................................... 209.
 Wiring Diagram .................................................... 171
                                                                       .        Removal and Installation ...................................... 210
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 172   .       DTC P0133, P0153 HO2S1 .................................... 211    .
 Component Inspection ......................................... 175    .        Component Description ....................................... 211 .
 Removal and Installation ..................................... 175    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0112, P0113 IAT SENSOR .......................... 176             .                                                                          . 211
 Component Description ....................................... 176     .        On Board Diagnosis Logic ................................... 211  .
 On Board Diagnosis Logic ................................... 176      .        DTC Confirmation Procedure ............................... 212    .
 DTC Confirmation Procedure .............................. 176         .        Overall Function Check ........................................ 213
                                                                                                                                                  .
 Wiring Diagram .................................................... 178
                                                                       .        Wiring Diagram .................................................... 214
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 179   .        Diagnostic Procedure ........................................... 217
                                                                                                                                                  .
 Component Inspection ......................................... 180    .        Component Inspection ......................................... 221.
 Removal and Installation ..................................... 180    .        Removal and Installation ...................................... 223
                                                                                                                                                  .
DTC P0117, P0118 ECT SENSOR ......................... 181              .       DTC P0134, P0154 HO2S1 .................................... 224    .
 Component Description ....................................... 181     .        Component Description ....................................... 224 .
 On Board Diagnosis Logic ................................... 181      .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 182         .                                                                          .224
 Wiring Diagram .................................................... 183
                                                                       .        On Board Diagnosis Logic ................................... 224  .
 Diagnostic Procedure .......................................... 184   .        DTC Confirmation Procedure ............................... 225    .
 Component Inspection ......................................... 185    .        Overall Function Check ........................................ 226
                                                                                                                                                  .
 Removal and Installation ..................................... 185    .        Wiring Diagram .................................................... 227
                                                                                                                                                  .

                                                                          EC-2
 Diagnostic Procedure .......................................... 230 .         Diagnostic Procedure .......................................... 282      .
 Component Inspection ........................................ 232   .         Component Inspection ......................................... 285       .       A
 Removal and Installation ..................................... 233  .         Removal and Installation ..................................... 285       .
DTC P0138, P0158 HO2S2 ................................... 234       .       DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
 Component Description ....................................... 234   .       FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... 286                  .       EC
 CONSULT-II Reference Value in Data Monitor Mode                               On Board Diagnosis Logic ................................... 286         .
                                                                     . 234     DTC Confirmation Procedure .............................. 286            .
 On Board Diagnosis Logic .................................. 234     .         Diagnostic Procedure .......................................... 287      .
 DTC Confirmation Procedure .............................. 235       .       DTC P0327, P0328 KS .......................................... 292         .       C
 Wiring Diagram ................................................... 236
                                                                     .         Component Description ....................................... 292        .
 Diagnostic Procedure .......................................... 239 .         On Board Diagnosis Logic ................................... 292         .
 Component Inspection ........................................ 241   .         DTC Confirmation Procedure .............................. 292            .       D
 Removal and Installation ..................................... 242  .         Wiring Diagram .................................................... 293  .
DTC P0139, P0159 HO2S2 ................................... 243       .         Diagnostic Procedure .......................................... 294      .
 Component Description ....................................... 243   .         Component Inspection ......................................... 296       .       E
 CONSULT-II Reference Value in Data Monitor Mode                               Removal and Installation ..................................... 296       .
                                                                     . 243   DTC P0335 CKP SENSOR (POS) ......................... 297                   .
 On Board Diagnosis Logic .................................. 243     .         Component Description ....................................... 297        .
 DTC Confirmation Procedure .............................. 244       .         CONSULT-II Reference Value in Data Monitor Mode                                  F
 Overall Function Check ....................................... 244  .                                                                                  . 297
 Wiring Diagram ................................................... 246
                                                                     .         On Board Diagnosis Logic ................................... 297         .
 Diagnostic Procedure .......................................... 249 .         DTC Confirmation Procedure .............................. 297            .       G
 Component Inspection ........................................ 252   .         Wiring Diagram .................................................... 298  .
 Removal and Installation ..................................... 253  .         Diagnostic Procedure .......................................... 299      .
DTC P0171, P0174 FUEL INJECTION SYSTEM                                         Component Inspection ......................................... 302       .       H
FUNCTION ............................................................. 254
                                                                     .         Removal and Installation ..................................... 302       .
 On Board Diagnosis Logic .................................. 254     .       DTC P0340, P0345 CMP SENSOR (PHASE) ....... 303                            .
 DTC Confirmation Procedure .............................. 254       .         Component Description ....................................... 303        .
                                                                                                                                                                 I
 Wiring Diagram ................................................... 256
                                                                     .         CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 258 .                                                                                  . 303
DTC P0172, P0175 FUEL INJECTION SYSTEM                                         On Board Diagnosis Logic ................................... 303         .
FUNCTION ............................................................. 262
                                                                     .         DTC Confirmation Procedure .............................. 303            .       J
 On Board Diagnosis Logic .................................. 262     .         Wiring Diagram .................................................... 304  .
 DTC Confirmation Procedure .............................. 262       .         Diagnostic Procedure .......................................... 307      .
 Wiring Diagram ................................................... 264
                                                                     .         Component Inspection ......................................... 310       .       K
 Diagnostic Procedure .......................................... 266 .         Removal and Installation ..................................... 310       .
DTC P0181 FTT SENSOR ..................................... 270       .       DTC P0420, P0430 THREE WAY CATALYST FUNC-
 Component Description ....................................... 270   .       TION ....................................................................... 311
                                                                                                                                                        .       L
 On Board Diagnosis Logic .................................. 270     .         On Board Diagnosis Logic ................................... 311         .
 DTC Confirmation Procedure .............................. 270       .         DTC Confirmation Procedure .............................. 311            .
 Wiring Diagram ................................................... 272
                                                                     .         Overall Function Check ....................................... 312       .
 Diagnostic Procedure .......................................... 273 .         Diagnostic Procedure .......................................... 313      .       M
 Component Inspection ........................................ 274   .       DTC P0441 EVAP CONTROL SYSTEM ................ 316                         .
 Removal and Installation ..................................... 274  .         System Description .............................................. 316    .
DTC P0182, P0183 FTT SENSOR ........................ 275             .         On Board Diagnosis Logic ................................... 316         .
 Component Description ....................................... 275   .         DTC Confirmation Procedure .............................. 316            .
 On Board Diagnosis Logic .................................. 275     .         Overall Function Check ....................................... 317       .
 DTC Confirmation Procedure .............................. 275       .         Diagnostic Procedure .......................................... 318      .
 Wiring Diagram ................................................... 276
                                                                     .       DTC P0442 EVAP CONTROL SYSTEM ................ 321                         .
 Diagnostic Procedure .......................................... 277 .         On Board Diagnosis Logic ................................... 321         .
 Component Inspection ........................................ 278   .         DTC Confirmation Procedure .............................. 322            .
 Removal and Installation ..................................... 278  .         Diagnostic Procedure .......................................... 323      .
DTC P0222, P0223 TP SENSOR .......................... 279            .         Component Inspection ......................................... 329       .
 Component Description ....................................... 279   .       DTC P0444, P0445 EVAP CANISTER PURGE VOL-
 CONSULT-II Reference Value in Data Monitor Mode                             UME CONTROL SOLENOID VALVE ..................... 330                       .
                                                                     . 279     Description ........................................................... 330
                                                                                                                                                        .
 On Board Diagnosis Logic .................................. 279     .         CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 280       .                                                                                  . 330
 Wiring Diagram ................................................... 281
                                                                     .         On Board Diagnosis Logic ................................... 331         .

                                                                        EC-3
 DTC Confirmation Procedure .............................. 331           .        Diagnostic Procedure ........................................... 380     .
 Wiring Diagram .................................................... 332 .        Removal and Installation ...................................... 380      .
 Diagnostic Procedure .......................................... 334     .       DTC P0461 FUEL LEVEL SENSOR ...................... 381                    .
 Component Inspection ......................................... 335      .        Component Description ....................................... 381        .
 Removal and Installation ..................................... 336      .        On Board Diagnosis Logic ................................... 381         .
DTC P0447 EVAP CANISTER VENT CONTROL                                              Overall Function Check ........................................ 381      .
VALVE .................................................................... 337
                                                                         .        Diagnostic Procedure ........................................... 382     .
 Component Description ....................................... 337       .        Removal and Installation ...................................... 382      .
 CONSULT-II Reference Value in Data Monitor Mode                                 DTC P0462 FUEL LEVEL SENSOR ...................... 383                    .
                                                                         . 337    Component Description ....................................... 383        .
 On Board Diagnosis Logic ................................... 337        .        On Board Diagnosis Logic ................................... 383         .
 DTC Confirmation Procedure .............................. 338           .        DTC Confirmation Procedure ............................... 383           .
 Wiring Diagram .................................................... 339 .        Diagnostic Procedure ........................................... 384     .
 Diagnostic Procedure .......................................... 340     .        Removal and Installation ...................................... 384      .
 Component Inspection ......................................... 342      .       DTC P0500 VSS ..................................................... 385   .
DTC P0451 EVAP CONTROL SYSTEM PRESSURE                                            Description ........................................................... 385
                                                                                                                                                           .
SENSOR ................................................................. 344
                                                                         .        On Board Diagnosis Logic ................................... 385         .
 Component Description ....................................... 344       .        DTC Confirmation Procedure ............................... 385           .
 CONSULT-II Reference Value in Data Monitor Mode                                  Overall Function Check ........................................ 386      .
                                                                         . 344    Diagnostic Procedure ........................................... 386     .
 On Board Diagnosis Logic ................................... 344        .       DTC P0506 ISC SYSTEM ...................................... 387           .
 DTC Confirmation Procedure .............................. 345           .        Description ........................................................... 387
                                                                                                                                                           .
 Diagnostic Procedure .......................................... 345     .        On Board Diagnosis Logic ................................... 387         .
 Component Inspection ......................................... 346      .        DTC Confirmation Procedure ............................... 387           .
DTC P0452 EVAP CONTROL SYSTEM PRESSURE                                            Diagnostic Procedure ........................................... 388     .
SENSOR ................................................................. 347
                                                                         .       DTC P0507 ISC SYSTEM ...................................... 389           .
 Component Description ....................................... 347       .        Description ........................................................... 389
                                                                                                                                                           .
 CONSULT-II Reference Value in Data Monitor Mode                                  On Board Diagnosis Logic ................................... 389         .
                                                                         . 347    DTC Confirmation Procedure ............................... 389           .
 On Board Diagnosis Logic ................................... 347        .        Diagnostic Procedure ........................................... 390     .
 DTC Confirmation Procedure .............................. 348           .       DTC P0550 PSP SENSOR ..................................... 391            .
 Wiring Diagram .................................................... 349 .        Component Description ....................................... 391        .
 Diagnostic Procedure .......................................... 350     .        CONSULT-II Reference Value in Data Monitor Mode
 Component Inspection ......................................... 352      .                                                                                 .391
DTC P0453 EVAP CONTROL SYSTEM PRESSURE                                            On Board Diagnosis Logic ................................... 391         .
SENSOR ................................................................. 353
                                                                         .        DTC Confirmation Procedure ............................... 391           .
 Component Description ....................................... 353       .        Wiring Diagram .................................................... 392  .
 CONSULT-II Reference Value in Data Monitor Mode                                  Diagnostic Procedure ........................................... 393     .
                                                                         . 353    Component Inspection ......................................... 395       .
 On Board Diagnosis Logic ................................... 353        .       DTC P0605 ECM .................................................... 396    .
 DTC Confirmation Procedure .............................. 354           .        Component Description ....................................... 396        .
 Wiring Diagram .................................................... 355 .        On Board Diagnosis Logic ................................... 396         .
 Diagnostic Procedure .......................................... 356     .        DTC Confirmation Procedure ............................... 396           .
 Component Inspection ......................................... 360      .        Diagnostic Procedure ........................................... 397     .
DTC P0455 EVAP CONTROL SYSTEM ................ 361                       .       DTC P1065 ECM POWER SUPPLY ....................... 399                    .
 On Board Diagnosis Logic ................................... 361        .        Component Description ....................................... 399        .
 DTC Confirmation Procedure .............................. 362           .        On Board Diagnosis Logic ................................... 399         .
 Diagnostic Procedure .......................................... 363     .        DTC Confirmation Procedure ............................... 399           .
DTC P0456 EVAP CONTROL SYSTEM ................ 369                       .        Wiring Diagram .................................................... 400  .
 On Board Diagnosis Logic ................................... 369        .        Diagnostic Procedure ........................................... 401     .
 DTC Confirmation Procedure .............................. 370           .       DTC P1111, P1136 IVT CONTROL SOLENOID
 Overall Function Check ....................................... 371      .       VALVE ..................................................................... 403
                                                                                                                                                           .
 Diagnostic Procedure .......................................... 372     .        Component Description ....................................... 403        .
 Component Inspection ......................................... 378      .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0460 FUEL LEVEL SENSOR ...................... 379                   .                                                                                 .403
 Component Description ....................................... 379       .        On Board Diagnosis Logic ................................... 403         .
 On Board Diagnosis Logic ................................... 379        .        DTC Confirmation Procedure ............................... 403           .
 DTC Confirmation Procedure .............................. 379           .        Wiring Diagram .................................................... 404  .
                                                                                  Diagnostic Procedure ........................................... 407     .

                                                                            EC-4
 Component Inspection ........................................ 409      .        DTC Confirmation Procedure .............................. 441         .
 Removal and Installation ..................................... 409     .        Overall Function Check ....................................... 441    .       A
DTC P1121 ELECTRIC THROTTLE CONTROL                                              Wiring Diagram .................................................... 443
                                                                                                                                                       .
ACTUATOR ........................................................... 410.        Diagnostic Procedure .......................................... 446   .
 Component Description ....................................... 410      .        Component Inspection ......................................... 449    .       EC
 On Board Diagnosis Logic .................................. 410        .        Removal and Installation ..................................... 450    .
 DTC Confirmation Procedure .............................. 410          .       DTC P1147, P1167 HO2S2 .................................... 451        .
 Diagnostic Procedure ...........................................411    .        Component Description ....................................... 451     .
DTC P1122 ELECTRIC THROTTLE CONTROL                                              CONSULT-II Reference Value in Data Monitor Mode                               C
FUNCTION ............................................................. 412
                                                                        .                                                                              . 451
 Description .......................................................... 412
                                                                        .        On Board Diagnosis Logic ................................... 451      .
 On Board Diagnosis Logic .................................. 412        .        DTC Confirmation Procedure .............................. 452         .       D
 DTC Confirmation Procedure .............................. 412          .        Overall Function Check ....................................... 452    .
 Wiring Diagram ................................................... 413 .        Wiring Diagram .................................................... 454
                                                                                                                                                       .
 Diagnostic Procedure .......................................... 414    .        Diagnostic Procedure .......................................... 457   .       E
 Component Inspection ........................................ 417      .        Component Inspection ......................................... 460    .
 Remove and Installation ...................................... 417     .        Removal and Installation ..................................... 461    .
DTC P1124, P1126 THROTTLE CONTROL MOTOR                                         DTC P1148, P1168 CLOSED LOOP CONTROL ... 462                           .
RELAY ................................................................... 418
                                                                        .        On Board Diagnosis Logic ................................... 462      .       F
 Component Description ....................................... 418      .        DTC Confirmation Procedure .............................. 462         .
 CONSULT-II Reference Value in Data Monitor Mode                                 Overall Function Check ....................................... 463    .
                                                                        . 418    Diagnostic Procedure .......................................... 463   .       G
 On Board Diagnosis Logic .................................. 418        .       DTC P1211 TCS CONTROL UNIT ......................... 464               .
 DTC Confirmation Procedure .............................. 418          .        Description ........................................................... 464
                                                                                                                                                       .
 Wiring Diagram ................................................... 420 .        On Board Diagnosis Logic ................................... 464      .       H
 Diagnostic Procedure .......................................... 421    .        DTC Confirmation Procedure .............................. 464         .
DTC P1128 THROTTLE CONTROL MOTOR ....... 423                            .        Diagnostic Procedure .......................................... 464   .
 Component Description ....................................... 423      .       DTC P1212 TCS COMMUNICATION LINE ........... 465                       .
                                                                                                                                                                I
 On Board Diagnosis Logic .................................. 423        .        Description ........................................................... 465
                                                                                                                                                       .
 DTC Confirmation Procedure .............................. 423          .        On Board Diagnosis Logic ................................... 465      .
 Wiring Diagram ................................................... 424 .        DTC Confirmation Procedure .............................. 465         .
 Diagnostic Procedure .......................................... 425    .        Diagnostic Procedure .......................................... 465   .       J
 Component Inspection ........................................ 426      .       DTC P1217 ENGINE OVER TEMPERATURE (FOR
 Removal and Installation ..................................... 427     .       A/T MODELS) ........................................................ 466
                                                                                                                                                       .
DTC P1143, P1163 HO2S1 .................................... 428         .        Description ........................................................... 466
                                                                                                                                                       .       K
 Component Description ....................................... 428      .        CONSULT-II Reference Value in Data Monitor Mode
 CONSULT-II Reference Value in Data Monitor Mode                                                                                                       . 467
                                                                        . 428    On Board Diagnosis Logic ................................... 467      .       L
 On Board Diagnosis Logic .................................. 428        .        Overall Function Check ....................................... 468    .
 DTC Confirmation Procedure .............................. 429          .        Wiring Diagram .................................................... 470
                                                                                                                                                       .
 Overall Function Check ....................................... 430     .        Diagnostic Procedure .......................................... 472   .
 Diagnostic Procedure .......................................... 430    .        Main 12 Causes of Overheating .......................... 477          .       M
 Component Inspection ........................................ 432      .        Component Inspection ......................................... 477    .
 Removal and Installation ..................................... 433     .       DTC P1217 ENGINE OVER TEMPERATURE (FOR
DTC P1144, P1164 HO2S1 .................................... 434         .       M/T MODELS) ........................................................ 478
                                                                                                                                                       .
 Component Description ....................................... 434      .        Description ........................................................... 478
                                                                                                                                                       .
 CONSULT-II Reference Value in Data Monitor Mode                                 CONSULT-II Reference Value in Data Monitor Mode
                                                                        . 434                                                                          . 479
 On Board Diagnosis Logic .................................. 434        .        On Board Diagnosis Logic ................................... 479      .
 DTC Confirmation Procedure .............................. 435          .        Overall Function Check ....................................... 480    .
 Overall Function Check ....................................... 436     .        Wiring Diagram .................................................... 482
                                                                                                                                                       .
 Diagnostic Procedure .......................................... 436    .        Diagnostic Procedure .......................................... 484   .
 Component Inspection ........................................ 438      .        Main 12 Causes of Overheating .......................... 489          .
 Removal and Installation ..................................... 439     .        Component Inspection ......................................... 489    .
DTC P1146, P1166 HO2S2 .................................... 440         .       DTC P1225 TP SENSOR ....................................... 490        .
 Component Description ....................................... 440      .        Component Description ....................................... 490     .
 CONSULT-II Reference Value in Data Monitor Mode                                 On Board Diagnosis Logic ................................... 490      .
                                                                        . 440    DTC Confirmation Procedure .............................. 490         .
 On Board Diagnosis Logic .................................. 440        .

                                                                          EC-5
 Diagnostic Procedure .......................................... 491     .         CONSULT-II Reference Value in Data Monitor Mode
 Removal and Installation ..................................... 491      .                                                                               .540
DTC P1226 TP SENSOR ....................................... 492          .         On Board Diagnosis Logic ................................... 540      .
 Component Description ....................................... 492       .         DTC Confirmation Procedure ............................... 540        .
 On Board Diagnosis Logic ................................... 492        .         Overall Function Check ........................................ 541   .
 DTC Confirmation Procedure .............................. 492           .         Wiring Diagram .................................................... 542
                                                                                                                                                         .
 Diagnostic Procedure .......................................... 493     .         Diagnostic Procedure ........................................... 545  .
 Removal and Installation ..................................... 493      .       DTC P1805 BRAKE SWITCH ................................ 549             .
DTC P1229 SENSOR POWER SUPPLY ............... 494                        .         Description ........................................................... 549
                                                                                                                                                         .
 On Board Diagnosis Logic ................................... 494        .         CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 494           .                                                                               .549
 Wiring Diagram .................................................... 495 .         On Board Diagnosis Logic ................................... 549      .
 Diagnostic Procedure .......................................... 496     .         DTC Confirmation Procedure ............................... 549        .
DTC P1444 EVAP CANISTER PURGE VOLUME                                               Wiring Diagram .................................................... 550
                                                                                                                                                         .
CONTROL SOLENOID VALVE .............................. 499                .         Diagnostic Procedure ........................................... 551  .
 Description ........................................................... 499
                                                                         .         Component Inspection ......................................... 553    .
 CONSULT-II Reference Value in Data Monitor Mode                                 DTC P2122, P2123 APP SENSOR ........................ 554                .
                                                                         . 499     Component Description ....................................... 554     .
 On Board Diagnosis Logic ................................... 500        .         CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 500           .                                                                               .554
 Wiring Diagram .................................................... 501 .         On Board Diagnosis Logic ................................... 554      .
 Diagnostic Procedure .......................................... 503     .         DTC Confirmation Procedure ............................... 555        .
 Component Inspection ......................................... 506      .         Wiring Diagram .................................................... 556
                                                                                                                                                         .
 Removal and Installation ..................................... 506      .         Diagnostic Procedure ........................................... 557  .
DTC P1446 EVAP CANISTER VENT CONTROL                                               Component Inspection ......................................... 559    .
VALVE .................................................................... 507
                                                                         .         Removal and Installation ...................................... 560   .
 Component Description ....................................... 507       .       DTC P2127, P2128 APP SENSOR ........................ 561                .
 CONSULT-II Reference Value in Data Monitor Mode                                   Component Description ....................................... 561     .
                                                                         . 507     CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic ................................... 507        .                                                                               .561
 DTC Confirmation Procedure .............................. 508           .         On Board Diagnosis Logic ................................... 561      .
 Wiring Diagram .................................................... 509 .         DTC Confirmation Procedure ............................... 562        .
 Diagnostic Procedure .......................................... 510     .         Wiring Diagram .................................................... 563
                                                                                                                                                         .
 Component Inspection ......................................... 512      .         Diagnostic Procedure ........................................... 564  .
DTC P1564 ASCD STEERING SWITCH ............... 514                       .         Component Inspection ......................................... 567    .
 Component Description ....................................... 514       .         Removal and Installation ...................................... 567   .
 CONSULT-II Reference Value in Data Monitor Mode                                 DTC P2135 TP SENSOR ....................................... 568         .
                                                                         . 514     Component Description ....................................... 568     .
 On Board Diagnosis Logic ................................... 514        .         CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 515           .                                                                               .568
 Wiring Diagram .................................................... 516 .         On Board Diagnosis Logic ................................... 568      .
 Diagnostic Procedure .......................................... 517     .         DTC Confirmation Procedure ............................... 569        .
 Component Inspection ......................................... 519      .         Wiring Diagram .................................................... 570
                                                                                                                                                         .
DTC P1572 ASCD BRAKE SWITCH ..................... 521                    .         Diagnostic Procedure ........................................... 571  .
 Component Description ....................................... 521       .         Component Inspection ......................................... 574    .
 CONSULT-II Reference Value in Data Monitor Mode                                   Removal and Installation ...................................... 574   .
                                                                         . 521   DTC P2138 APP SENSOR ..................................... 575          .
 On Board Diagnosis Logic ................................... 521        .         Component Description ....................................... 575     .
 DTC Confirmation Procedure .............................. 522           .         CONSULT-II Reference Value in Data Monitor Mode
 Wiring Diagram .................................................... 523 .                                                                               .575
 Diagnostic Procedure .......................................... 527     .         On Board Diagnosis Logic ................................... 575      .
 Component Inspection ......................................... 537      .         DTC Confirmation Procedure ............................... 576        .
DTC P1574 ASCD VEHICLE SPEED SENSOR .... 538                             .         Wiring Diagram .................................................... 577
                                                                                                                                                         .
 Component Description ....................................... 538       .         Diagnostic Procedure ........................................... 578  .
 On Board Diagnosis Logic ................................... 538        .         Component Inspection ......................................... 582    .
 DTC Confirmation Procedure .............................. 538           .         Removal and Installation ...................................... 582   .
 Diagnostic Procedure .......................................... 539     .       IGNITION SIGNAL ................................................. 583   .
DTC P1706 PNP SWITCH ..................................... 540           .         Component Description ....................................... 583     .
 Component Description ....................................... 540       .         Wiring Diagram .................................................... 584
                                                                                                                                                         .

                                                                            EC-6
  Diagnostic Procedure .......................................... 589  .         Component Description ....................................... 629        .
  Component Inspection ........................................ 594    .         CONSULT-II Reference Value in Data Monitor Mode                                  A
  Removal and Installation ..................................... 594   .                                                                                  . 629
INJECTOR CIRCUIT .............................................. 595    .         Wiring Diagram .................................................... 630  .
  Component Description ....................................... 595    .         Diagnostic Procedure .......................................... 631      .       EC
  CONSULT-II Reference Value in Data Monitor Mode                              MIL AND DATA LINK CONNECTOR ..................... 632                      .
                                                                       . 595     Wiring Diagram .................................................... 632  .
  Wiring Diagram ................................................... 596
                                                                       .       EVAPORATIVE EMISSION SYSTEM .................... 634                       .
  Diagnostic Procedure .......................................... 598  .         Description ........................................................... 634
                                                                                                                                                          .       C
  Component Inspection ........................................ 600    .         Component Inspection ......................................... 637       .
  Removal and Installation ..................................... 600   .         Removal and Installation ..................................... 638       .
FUEL PUMP CIRCUIT ........................................... 601      .         How to Detect Fuel Vapor Leakage ..................... 638               .       D
  Description .......................................................... 601
                                                                       .       ON BOARD REFUELING VAPOR



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