Nissan Pathfinder (2010 year). Instruction — part 239

EC-4

Component Description . . . . . . . . . . .

251

On Board Diagnosis Logic . . . . . . . . . .

251

DTC Confirmation Procedure . . . . . . . .

251

Diagnosis Procedure . . . . . . . . . . . .

251

Component Inspection . . . . . . . . . . ...

253

P0448 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . .

255

Component Description . . . . . . . . . . .

255

On Board Diagnosis Logic . . . . . . . . . .

255

DTC Confirmation Procedure . . . . . . . .

255

Diagnosis Procedure . . . . . . . . . . . .

256

Component Inspection . . . . . . . . . . ...

257

P0451 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...

260

Component Description . . . . . . . . . . .

260

On Board Diagnosis Logic . . . . . . . . . .

260

DTC Confirmation Procedure . . . . . . . .

260

Diagnosis Procedure . . . . . . . . . . . .

260

Component Inspection . . . . . . . . . . ...

261

P0452 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...

263

Component Description . . . . . . . . . . .

263

On Board Diagnosis Logic . . . . . . . . . .

263

DTC Confirmation Procedure . . . . . . . .

263

Diagnosis Procedure . . . . . . . . . . . .

264

Component Inspection . . . . . . . . . . ...

266

P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...

267

Component Description . . . . . . . . . . .

267

On Board Diagnosis Logic . . . . . . . . . .

267

DTC Confirmation Procedure . . . . . . . .

267

Diagnosis Procedure . . . . . . . . . . . .

268

Component Inspection . . . . . . . . . . ...

271

P0455 EVAP CONTROL SYSTEM . . . . ..

272

On Board Diagnosis Logic . . . . . . . . . .

272

DTC Confirmation Procedure . . . . . . . .

272

Diagnosis Procedure . . . . . . . . . . . .

273

Component Inspection . . . . . . . . . . ...

277

P0456 EVAP CONTROL SYSTEM . . . . ..

279

On Board Diagnosis Logic . . . . . . . . . .

279

DTC Confirmation Procedure . . . . . . . .

280

Overall Function Check . . . . . . . . . . .

280

Diagnosis Procedure . . . . . . . . . . . .

281

Component Inspection . . . . . . . . . . ...

286

P0460 FUEL LEVEL SENSOR . . . . . .

287

Component Description . . . . . . . . . . .

287

On Board Diagnosis Logic . . . . . . . . . .

287

DTC Confirmation Procedure . . . . . . . .

287

Diagnosis Procedure . . . . . . . . . . . .

287

P0461 FUEL LEVEL SENSOR . . . . . .

289

Component Description . . . . . . . . . . .

289

On Board Diagnosis Logic . . . . . . . . . .

289

Overall Function Check . . . . . . . . . . .

289

Diagnosis Procedure . . . . . . . . . . . .

290

P0462, P0463 FUEL LEVEL SENSOR . . .

291

Component Description . . . . . . . . . .

291

On Board Diagnosis Logic . . . . . . . . .

291

DTC Confirmation Procedure . . . . . . . .

291

Diagnosis Procedure . . . . . . . . . . . .

291

P0500 VSS . . . . . . . . . . . . . .

293

Description . . . . . . . . . . . . . . .

293

On Board Diagnosis Logic . . . . . . . . .

293

DTC Confirmation Procedure . . . . . . . .

293

Overall Function Check . . . . . . . . . . .

294

Diagnosis Procedure . . . . . . . . . . . .

294

P0506 ISC SYSTEM . . . . . . . . . . .

295

Description . . . . . . . . . . . . . . .

295

On Board Diagnosis Logic . . . . . . . . .

295

DTC Confirmation Procedure . . . . . . . .

295

Diagnosis Procedure . . . . . . . . . . . .

295

P0507 ISC SYSTEM . . . . . . . . . . .

297

Description . . . . . . . . . . . . . . .

297

On Board Diagnosis Logic . . . . . . . . .

297

DTC Confirmation Procedure . . . . . . . .

297

Diagnosis Procedure . . . . . . . . . . . .

297

P050E COLD START CONTROL . . . . .

299

Description . . . . . . . . . . . . . . .

299

On Board Diagnosis Logic . . . . . . . . .

299

DTC Confirmation Procedure . . . . . . . .

299

Diagnosis Procedure . . . . . . . . . . . .

300

P0550 PSP SENSOR . . . . . . . . . ...

301

Component Description . . . . . . . . . .

301

On Board Diagnosis Logic . . . . . . . . .

301

DTC Confirmation Procedure . . . . . . . .

301

Diagnosis Procedure . . . . . . . . . . . .

301

Component Inspection . . . . . . . . . . ..

303

P0603 ECM POWER SUPPLY . . . . . . .

304

Component Description . . . . . . . . . .

304

On Board Diagnosis Logic . . . . . . . . .

304

DTC Confirmation Procedure . . . . . . . .

304

Diagnosis Procedure . . . . . . . . . . . .

304

P0605 ECM . . . . . . . . . . . . . ...

306

Component Description . . . . . . . . . .

306

On Board Diagnosis Logic . . . . . . . . .

306

DTC Confirmation Procedure . . . . . . . .

306

Diagnosis Procedure . . . . . . . . . . . .

307

P0607 ECM . . . . . . . . . . . . . ...

308

Description . . . . . . . . . . . . . . .

308

On Board Diagnosis Logic . . . . . . . . .

308

DTC Confirmation Procedure . . . . . . . .

308

Diagnosis Procedure . . . . . . . . . . . .

308

P0643 SENSOR POWER SUPPLY . . . . ..

309

On Board Diagnosis Logic . . . . . . . . .

309

2010 Pathfinder

EC-5

C

D

E

F

G

H

I

J

K

L

M

EC

A

N

O

P

DTC Confirmation Procedure . . . . . . . .

309

Diagnosis Procedure . . . . . . . . . . . .

309

P0850 PNP SWITCH . . . . . . . . . .

312

Component Description . . . . . . . . . . .

312

On Board Diagnosis Logic . . . . . . . . .

312

DTC Confirmation Procedure . . . . . . . .

312

Overall Function Check . . . . . . . . . . .

312

Diagnosis Procedure . . . . . . . . . . . .

313

P1148, P1168 CLOSED LOOP CONTROL . .

314

On Board Diagnosis Logic . . . . . . . . .

314

P1211 TCS CONTROL UNIT . . . . . . ...

315

Description . . . . . . . . . . . . . . .

315

On Board Diagnosis Logic . . . . . . . . .

315

DTC Confirmation Procedure . . . . . . . .

315

Diagnosis Procedure . . . . . . . . . . . .

315

P1212 TCS COMMUNICATION LINE . . . ..

316

Description . . . . . . . . . . . . . . .

316

On Board Diagnosis Logic . . . . . . . . .

316

DTC Confirmation Procedure . . . . . . . .

316

Diagnosis Procedure . . . . . . . . . . . .

316

P1217 ENGINE OVER TEMPERATURE . . .

317

On Board Diagnosis Logic . . . . . . . . .

317

Overall Function Check . . . . . . . . . . .

317

Diagnosis Procedure . . . . . . . . . . . .

318

Main 12 Causes of Overheating . . . . . . .

319

P1225 TP SENSOR . . . . . . . . . . ..

321

Component Description . . . . . . . . . . .

321

On Board Diagnosis Logic . . . . . . . . .

321

DTC Confirmation Procedure . . . . . . . .

321

Diagnosis Procedure . . . . . . . . . . . .

321

P1226 TP SENSOR . . . . . . . . . . ..

323

Component Description . . . . . . . . . . .

323

On Board Diagnosis Logic . . . . . . . . .

323

DTC Confirmation Procedure . . . . . . . .

323

Diagnosis Procedure . . . . . . . . . . . .

323

P1550 BATTERY CURRENT SENSOR . . ...

325

Component Description . . . . . . . . . . .

325

On Board Diagnosis Logic . . . . . . . . .

325

DTC Confirmation Procedure . . . . . . . .

325

Diagnosis Procedure . . . . . . . . . . . .

325

Component Inspection . . . . . . . . . . ..

327

P1551, P1552 BATTERY CURRENT SEN-
SOR . . . . . . . . . . . . . . . . ..

329

Component Description . . . . . . . . . . .

329

On Board Diagnosis Logic . . . . . . . . .

329

DTC Confirmation Procedure . . . . . . . .

329

Diagnosis Procedure . . . . . . . . . . . .

329

Component Inspection . . . . . . . . . . ..

331

P1553 BATTERY CURRENT SENSOR . . ...

333

Component Description . . . . . . . . . . .

333

On Board Diagnosis Logic . . . . . . . . .

333

DTC Confirmation Procedure . . . . . . . .

333

Diagnosis Procedure . . . . . . . . . . . .

333

Component Inspection . . . . . . . . . . ...

335

P1554 BATTERY CURRENT SENSOR . . ..

337

Component Description . . . . . . . . . . .

337

On Board Diagnosis Logic . . . . . . . . . .

337

Overall Function Check . . . . . . . . . . .

337

Diagnosis Procedure . . . . . . . . . . . .

338

Component Inspection . . . . . . . . . . ...

339

P1564 ASCD STEERING SWITCH . . . . .

341

Component Description . . . . . . . . . . .

341

On Board Diagnosis Logic . . . . . . . . . .

341

DTC Confirmation Procedure . . . . . . . .

341

Diagnosis Procedure . . . . . . . . . . . .

341

Component Inspection . . . . . . . . . . ...

343

P1572 ASCD BRAKE SWITCH . . . . . ..

345

Component Description . . . . . . . . . . .

345

On Board Diagnosis Logic . . . . . . . . . .

345

DTC Confirmation Procedure . . . . . . . .

345

Diagnosis Procedure . . . . . . . . . . . .

346

Component Inspection . . . . . . . . . . ...

349

P1574 ASCD VEHICLE SPEED SENSOR . .

350

Component Description . . . . . . . . . . .

350

On Board Diagnosis Logic . . . . . . . . . .

350

DTC Confirmation Procedure . . . . . . . .

350

Diagnosis Procedure . . . . . . . . . . . .

350

P1715 INPUT SPEED SENSOR . . . . . .

352

Description . . . . . . . . . . . . . . . .

352

On Board Diagnosis Logic . . . . . . . . . .

352

Diagnosis Procedure . . . . . . . . . . . .

352

P1800 VIAS CONTROL SOLENOID VALVE 1 .

353

Component Description . . . . . . . . . . .

353

On Board Diagnosis Logic . . . . . . . . . .

353

DTC Confirmation Procedure . . . . . . . .

353

Diagnosis Procedure . . . . . . . . . . . .

353

Component Inspection . . . . . . . . . . ...

354

P1805 BRAKE SWITCH . . . . . . . . .

356

Description . . . . . . . . . . . . . . . .

356

On Board Diagnosis Logic . . . . . . . . . .

356

DTC Confirmation Procedure . . . . . . . .

356

Diagnosis Procedure . . . . . . . . . . . .

356

Component Inspection . . . . . . . . . . ...

358

P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY . . . . . . . . . . . . .

359

Component Description . . . . . . . . . . .

359

On Board Diagnosis Logic . . . . . . . . . .

359

DTC Confirmation Procedure . . . . . . . .

359

Diagnosis Procedure . . . . . . . . . . . .

359

P2101 ELECTRIC THROTTLE CONTROL
FUNCTION . . . . . . . . . . . . . ..

362

Description . . . . . . . . . . . . . . . .

362

On Board Diagnosis Logic . . . . . . . . . .

362

2010 Pathfinder

EC-6

DTC Confirmation Procedure . . . . . . . .

362

Diagnosis Procedure . . . . . . . . . . . .

362

Component Inspection . . . . . . . . . . ...

365

P2118 THROTTLE CONTROL MOTOR . . ..

366

Component Description . . . . . . . . . . .

366

On Board Diagnosis Logic . . . . . . . . . .

366

DTC Confirmation Procedure . . . . . . . .

366

Diagnosis Procedure . . . . . . . . . . . .

366

Component Inspection . . . . . . . . . . ...

367

P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR . . . . . . . . . . . . . .

368

Component Description . . . . . . . . . . .

368

On Board Diagnosis Logic . . . . . . . . . .

368

DTC Confirmation Procedure . . . . . . . .

368

Diagnosis Procedure . . . . . . . . . . . .

369

P2122, P2123 APP SENSOR . . . . . . ..

370

Component Description . . . . . . . . . . .

370

On Board Diagnosis Logic . . . . . . . . . .

370

DTC Confirmation Procedure . . . . . . . .

370

Diagnosis Procedure . . . . . . . . . . . .

371

Component Inspection . . . . . . . . . . ...

372

P2127, P2128 APP SENSOR . . . . . . ..

373

Component Description . . . . . . . . . . .

373

On Board Diagnosis Logic . . . . . . . . . .

373

DTC Confirmation Procedure . . . . . . . .

373

Diagnosis Procedure . . . . . . . . . . . .

373

Component Inspection . . . . . . . . . . ...

376

P2135 TP SENSOR . . . . . . . . . . .

377

Component Description . . . . . . . . . . .

377

On Board Diagnosis Logic . . . . . . . . . .

377

DTC Confirmation Procedure . . . . . . . .

377

Diagnosis Procedure . . . . . . . . . . . .

377

Component Inspection . . . . . . . . . . ...

380

P2138 APP SENSOR . . . . . . . . . ..

381

Component Description . . . . . . . . . . .

381

On Board Diagnosis Logic . . . . . . . . . .

381

DTC Confirmation Procedure . . . . . . . .

381

Diagnosis Procedure . . . . . . . . . . . .

382

Component Inspection . . . . . . . . . . ...

384

P2A00, P2A03 A/F SENSOR 1 . . . . . ...

385

Component Description . . . . . . . . . . .

385

On Board Diagnosis Logic . . . . . . . . . .

385

DTC Confirmation Procedure . . . . . . . .

385

Diagnosis Procedure . . . . . . . . . . . .

386

ASCD BRAKE SWITCH . . . . . . . . ..

390

Component Description . . . . . . . . . . .

390

Diagnosis Procedure . . . . . . . . . . . .

390

Component Inspection . . . . . . . . . . ...

393

ASCD INDICATOR . . . . . . . . . . ..

394

Component Description . . . . . . . . . . .

394

Diagnosis Procedure . . . . . . . . . . . .

394

COOLING FAN . . . . . . . . . . . . .

395

Description . . . . . . . . . . . . . . .

395

Diagnosis Procedure . . . . . . . . . . . .

395

Component Inspection . . . . . . . . . . ..

396

ELECTRICAL LOAD SIGNAL . . . . . . ..

397

Description . . . . . . . . . . . . . . .

397

Diagnosis Procedure . . . . . . . . . . . .

397

FUEL INJECTOR . . . . . . . . . . . ..

399

Component Description . . . . . . . . . .

399

Diagnosis Procedure . . . . . . . . . . . .

399

Component Inspection . . . . . . . . . . ..

402

FUEL PUMP . . . . . . . . . . . . . .

403

Description . . . . . . . . . . . . . . .

403

Diagnosis Procedure . . . . . . . . . . . .

403

Component Inspection . . . . . . . . . . ..

406

IGNITION SIGNAL . . . . . . . . . . .

407

Component Description . . . . . . . . . .

407

Diagnosis Procedure . . . . . . . . . . . .

407

Component Inspection . . . . . . . . . . ..

410

ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) . . . . . . . . . . . . . .

412

System Description . . . . . . . . . . . ...

412

Diagnosis Procedure . . . . . . . . . . . .

412

Component Inspection . . . . . . . . . . ..

415

POSITIVE CRANKCASE VENTILATION . . .

417

Description . . . . . . . . . . . . . . .

417

Component Inspection . . . . . . . . . . ..

417

REFRIGERANT PRESSURE SENSOR . . ...

419

Component Description . . . . . . . . . .

419

Diagnosis Procedure . . . . . . . . . . . .

419

VIAS . . . . . . . . . . . . . . . . ..

422

Diagnosis Procedure . . . . . . . . . . . .

422

Component Inspection . . . . . . . . . . ..

424

ECU DIAGNOSIS . . . . . . . . . ..

426

ECM . . . . . . . . . . . . . . . . ..

426

CONSULT-III Reference Value in Data Monitor
Mode . . . . . . . . . . . . . . . . . .

426

ECM Harness Connector Terminal Layout . . ...

429

ECM Terminal and Reference Value . . . . .

429

Wiring Diagram . . . . . . . . . . . . . .

438

Fail-Safe Chart . . . . . . . . . . . . . ..

458

DTC Inspection Priority Chart . . . . . . . ...

460

DTC Index . . . . . . . . . . . . . . . .

461

Emission-related Diagnostic Information . . . ..

464

SYMPTOM DIAGNOSIS . . . . . . ...

484

ENGINE CONTROL SYSTEM SYMPTOMS .

484

Symptom Matrix Chart . . . . . . . . . . ..

484

NORMAL OPERATING CONDITION . . . ...

488

2010 Pathfinder

EC-7

C

D

E

F

G

H

I

J

K

L

M

EC

A

N

O

P

Fuel Cut Control (at No Load and High Engine
Speed) . . . . . . . . . . . . . . . . ...

488

PRECAUTION . . . . . . . . . . .

489

PRECAUTIONS . . . . . . . . . . . .

489

Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" . . . . . . . . . . . . . . . ...

489

Precaution for Procedure without Cowl Top Cover

..

489

On Board Diagnosis (OBD) System of Engine and
A/T . . . . . . . . . . . . . . . . . . .

489

Precaution . . . . . . . . . . . . . . . .

490

PREPARATION . . . . . . . . . . .

493

PREPARATION . . . . . . . . . . . .

493

Special Service Tool . . . . . . . . . . . .

493

Commercial Service Tool . . . . . . . . . ..

494

ON-VEHICLE MAINTENANCE . . . . ..

495

FUEL PRESSURE . . . . . . . . . . .

495

Fuel Pressure Check . . . . . . . . . . . .

495

EVAP LEAK CHECK . . . . . . . . . .

497

How to Detect Fuel Vapor Leakage . . . . . ..

497

ON-VEHICLE REPAIR . . . . . . . ...

498

EVAP CANISTER . . . . . . . . . . . .

498

Component Inspection . . . . . . . . . . ..

498

Removal and Installation . . . . . . . . . ...

498

SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..

499

SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . .

499

Fuel Pressure . . . . . . . . . . . . . .

499

Idle Speed and Ignition Timing . . . . . . . ..

499

Calculated Load Value . . . . . . . . . . ..

499

Mass Air Flow Sensor . . . . . . . . . . ...

499

Intake Air Temperature Sensor . . . . . . . .

499

Engine Coolant Temperature Sensor . . . . .

499

Air Fuel Ratio (A/F) Sensor 1 Heater . . . . .

499

Heated Oxygen sensor 2 Heater . . . . . . ...

500

Crankshaft Position Sensor (POS) . . . . . .

500

Camshaft Position Sensor (PHASE) . . . . . .

500

Throttle Control Motor . . . . . . . . . . ...

500

Fuel Injector . . . . . . . . . . . . . . ..

500

Fuel Pump . . . . . . . . . . . . . . . .

500

VK56DE

BASIC INSPECTION . . . . . . . . .

501

DIAGNOSIS AND REPAIR WORK FLOW . ..

501

Trouble Diagnosis Introduction . . . . . . . .

501

INSPECTION AND ADJUSTMENT . . . . ..

506

Basic Inspection . . . . . . . . . . . . .

506

Idle Speed and Ignition Timing Check . . . . ...

510

Procedure After Replacing ECM . . . . . . ...

510

VIN Registration . . . . . . . . . . . . .

510

Accelerator Pedal Released Position Learning . .

511

Throttle Valve Closed Position Learning . . . ...

511

Idle Air Volume Learning . . . . . . . . . ...

511

FUNCTION DIAGNOSIS . . . . . . .

514

ENGINE CONTROL SYSTEM . . . . . .

514

System Diagram . . . . . . . . . . . . .

514

Engine Control Component Parts Location . . ...

515

MULTIPORT FUEL INJECTION SYSTEM . .

522

System Description . . . . . . . . . . . .

522

ELECTRIC IGNITION SYSTEM . . . . . ..

525

System Description . . . . . . . . . . . .

525

AIR CONDITIONING CUT CONTROL . . .

526

Input/Output Signal Chart . . . . . . . . . ..

526

System Description . . . . . . . . . . . .

526

AUTOMATIC SPEED CONTROL DEVICE
(ASCD) . . . . . . . . . . . . . . .

527

System Description . . . . . . . . . . . .

527

Component Description . . . . . . . . . . .

528

CAN COMMUNICATION . . . . . . . . .

529

System Description . . . . . . . . . . . .

529

COOLING FAN CONTROL . . . . . . . .

530

Description . . . . . . . . . . . . . . . .

530

EVAPORATIVE EMISSION SYSTEM . . . .

531

Description . . . . . . . . . . . . . . . .

531

INTAKE VALVE TIMING CONTROL . . . ..

534

Description . . . . . . . . . . . . . . . .

534

ON BOARD DIAGNOSTIC (OBD) SYSTEM ..

535

Introduction . . . . . . . . . . . . . . .

535

Two Trip Detection Logic . . . . . . . . . ...

535

Emission-related Diagnostic Information . . . ...

536

Malfunction Indicator Lamp (MIL) . . . . . . ..

549

OBD System Operation Chart . . . . . . . ...

552

CONSULT-III Function (ENGINE) . . . . . . .

557

Generic Scan Tool (GST) Function . . . . . ...

564

COMPONENT DIAGNOSIS . . . . . ...

566

TROUBLE DIAGNOSIS - SPECIFICATION
VALUE . . . . . . . . . . . . . . . .

566

Description . . . . . . . . . . . . . . . .

566

Testing Condition . . . . . . . . . . . . ...

566

Inspection Procedure . . . . . . . . . . . .

566

Diagnosis Procedure . . . . . . . . . . . .

567

POWER SUPPLY AND GROUND CIRCUIT ..

574

Diagnosis Procedure . . . . . . . . . . . .

574

Ground Inspection . . . . . . . . . . . . .

577

2010 Pathfinder

EC-8

U0101 CAN COMM CIRCUIT . . . . . . ..

578

Description . . . . . . . . . . . . . . . .

578

On Board Diagnosis Logic . . . . . . . . . .

578

DTC Confirmation Procedure . . . . . . . .

578

Diagnosis Procedure . . . . . . . . . . . .

578

U1001 CAN COMM CIRCUIT . . . . . . ..

579

Description . . . . . . . . . . . . . . . .

579

On Board Diagnosis Logic . . . . . . . . . .

579

DTC Confirmation Procedure . . . . . . . .

579

Diagnosis Procedure . . . . . . . . . . . .

579

P0011, P0021 IVT CONTROL . . . . . . .

580

On Board Diagnosis Logic . . . . . . . . . .

580

DTC Confirmation Procedure . . . . . . . .

580

Diagnosis Procedure . . . . . . . . . . . .

581

Component Inspection . . . . . . . . . . ...

585

P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER . . . . . . . . . . . . . . ...

587

Description . . . . . . . . . . . . . . . .

587

On Board Diagnosis Logic . . . . . . . . . .

587

DTC Confirmation Procedure . . . . . . . .

587

Diagnosis Procedure . . . . . . . . . . . .

587

Component Inspection . . . . . . . . . . ...

589

P0037, P0038, P0057, P0058 HO2S2 HEAT-
ER . . . . . . . . . . . . . . . . .

590

Description . . . . . . . . . . . . . . . .

590

On Board Diagnosis Logic . . . . . . . . . .

590

DTC Confirmation Procedure . . . . . . . .

590

Diagnosis Procedure . . . . . . . . . . . .

591

Component Inspection . . . . . . . . . . ...

592

P0075, P0081 IVT CONTROL SOLENOID
VALVE . . . . . . . . . . . . . . . .

594

Component Description . . . . . . . . . . .

594

On Board Diagnosis Logic . . . . . . . . . .

594

DTC Confirmation Procedure . . . . . . . .

594

Diagnosis Procedure . . . . . . . . . . . .

594

Component Inspection . . . . . . . . . . ...

595

P0101 MAF SENSOR . . . . . . . . . ..

597

Component Description . . . . . . . . . . .

597

On Board Diagnosis Logic . . . . . . . . . .

597

DTC Confirmation Procedure . . . . . . . .

597

Overall Function Check . . . . . . . . . . .

598

Diagnosis Procedure . . . . . . . . . . . .

599

Component Inspection . . . . . . . . . . ...

601

P0102, P0103 MAF SENSOR . . . . . . ..

603

Component Description . . . . . . . . . . .

603

On Board Diagnosis Logic . . . . . . . . . .

603

DTC Confirmation Procedure . . . . . . . .

603

Diagnosis Procedure . . . . . . . . . . . .

604

Component Inspection . . . . . . . . . . ...

605

P0112, P0113 IAT SENSOR . . . . . . .

608

Component Description . . . . . . . . . . .

608

On Board Diagnosis Logic . . . . . . . . . .

608

DTC Confirmation Procedure . . . . . . . .

608

Diagnosis Procedure . . . . . . . . . . . .

608

Component Inspection . . . . . . . . . . ..

610

P0116 ECT SENSOR . . . . . . . . . ...

611

Component Description . . . . . . . . . .

611

On Board Diagnosis Logic . . . . . . . . .

611

DTC Confirmation Procedure . . . . . . . .

611

Diagnosis Procedure . . . . . . . . . . . .

612

Component Inspection . . . . . . . . . . ..

612

P0117, P0118 ECT SENSOR . . . . . . ...

614

Component Description . . . . . . . . . .

614

On Board Diagnosis Logic . . . . . . . . .

614

DTC Confirmation Procedure . . . . . . . .

615

Diagnosis Procedure . . . . . . . . . . . .

615

Component Inspection . . . . . . . . . . ..

616

P0122, P0123 TP SENSOR . . . . . . . ..

618

Component Description . . . . . . . . . .

618

On Board Diagnosis Logic . . . . . . . . .

618

DTC Confirmation Procedure . . . . . . . .

618

Diagnosis Procedure . . . . . . . . . . . .

618

Component Inspection . . . . . . . . . . ..

621

P0125 ECT SENSOR . . . . . . . . . ...

622

Component Description . . . . . . . . . .

622

On Board Diagnosis Logic . . . . . . . . .

622

DTC Confirmation Procedure . . . . . . . .

622

Diagnosis Procedure . . . . . . . . . . . .

623

Component Inspection . . . . . . . . . . ..

623

P0127 IAT SENSOR . . . . . . . . . . .

625

Component Description . . . . . . . . . .

625

On Board Diagnosis Logic . . . . . . . . .

625

DTC Confirmation Procedure . . . . . . . .

625

Diagnosis Procedure . . . . . . . . . . . .

626

Component Inspection . . . . . . . . . . ..

626

P0128 THERMOSTAT FUNCTION . . . . ..

628

On Board Diagnosis Logic . . . . . . . . .

628

DTC Confirmation Procedure . . . . . . . .

628

Diagnosis Procedure . . . . . . . . . . . .

628

Component Inspection . . . . . . . . . . ..

629

P0130, P0150 A/F SENSOR 1 . . . . . . .

630

Component Description . . . . . . . . . .

630

On Board Diagnosis Logic . . . . . . . . .

630

DTC Confirmation Procedure . . . . . . . .

630

Overall Function Check . . . . . . . . . . .

631

Diagnosis Procedure . . . . . . . . . . . .

631

P0131, P0151 A/F SENSOR 1 . . . . . . .

634

Component Description . . . . . . . . . .

634

On Board Diagnosis Logic . . . . . . . . .

634

DTC Confirmation Procedure . . . . . . . .

634

Diagnosis Procedure . . . . . . . . . . . .

635

P0132, P0152 A/F SENSOR 1 . . . . . . .

638

Component Description . . . . . . . . . .

638

On Board Diagnosis Logic . . . . . . . . .

638

2010 Pathfinder

EC-9

C

D

E

F

G

H

I

J

K

L

M

EC

A

N

O

P

DTC Confirmation Procedure . . . . . . . .

638

Diagnosis Procedure . . . . . . . . . . . .

639

P0133, P0153 A/F SENSOR 1 . . . . . . .

642

Component Description . . . . . . . . . . .

642

On Board Diagnosis Logic . . . . . . . . .

642

DTC Confirmation Procedure . . . . . . . .

642

Diagnosis Procedure . . . . . . . . . . . .

643

P0137, P0157 HO2S2 . . . . . . . . . ..

648

Component Description . . . . . . . . . . .

648

On Board Diagnosis Logic . . . . . . . . .

648

DTC Confirmation Procedure . . . . . . . .

648

Overall Function Check . . . . . . . . . . .

649

Diagnosis Procedure . . . . . . . . . . . .

649

Component Inspection . . . . . . . . . . ..

651

P0138, P0158 HO2S2 . . . . . . . . . ..

653

Component Description . . . . . . . . . . .

653

On Board Diagnosis Logic . . . . . . . . .

653

DTC Confirmation Procedure . . . . . . . .

653

Overall Function Check . . . . . . . . . . .

654

Diagnosis Procedure . . . . . . . . . . . .

655

Component Inspection . . . . . . . . . . ..

659

P0139, P0159 HO2S2 . . . . . . . . . ..

661

Component Description . . . . . . . . . . .

661

On Board Diagnosis Logic . . . . . . . . .

661

DTC Confirmation Procedure . . . . . . . .

661

Overall Function Check . . . . . . . . . . .

662

Diagnosis Procedure . . . . . . . . . . . .

662

Component Inspection . . . . . . . . . . ..

664

P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION . . . . . . . . . . . . . ...

666

On Board Diagnosis Logic . . . . . . . . .

666

DTC Confirmation Procedure . . . . . . . .

666

Diagnosis Procedure . . . . . . . . . . . .

668

P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION . . . . . . . . . . . . . ...

671

On Board Diagnosis Logic . . . . . . . . .

671

DTC Confirmation Procedure . . . . . . . .

671

Diagnosis Procedure . . . . . . . . . . . .

672

P0181 FTT SENSOR . . . . . . . . . .

676

Component Description . . . . . . . . . . .

676

On Board Diagnosis Logic . . . . . . . . .

676

DTC Confirmation Procedure . . . . . . . .

676

Diagnosis Procedure . . . . . . . . . . . .

677

Component Inspection . . . . . . . . . . ..

678

P0182, P0183 FTT SENSOR . . . . . . ...

679

Component Description . . . . . . . . . . .

679

On Board Diagnosis Logic . . . . . . . . .

679

DTC Confirmation Procedure . . . . . . . .

679

Diagnosis Procedure . . . . . . . . . . . .

679

Component Inspection . . . . . . . . . . ..

681

P0222, P0223 TP SENSOR . . . . . . . .

682

Component Description . . . . . . . . . . .

682

On Board Diagnosis Logic . . . . . . . . . .

682

DTC Confirmation Procedure . . . . . . . .

682

Diagnosis Procedure . . . . . . . . . . . .

682

Component Inspection . . . . . . . . . . ...

685

P0300, P0301, P0302, P0303, P0304, P0305,
P0306, P0307, P0308 MISFIRE . . . . . ..

686

On Board Diagnosis Logic . . . . . . . . . .

686

DTC Confirmation Procedure . . . . . . . .

686

Diagnosis Procedure . . . . . . . . . . . .

687

P0327, P0328, P0332, P0333 KS . . . . ...

693

Component Description . . . . . . . . . . .

693

On Board Diagnosis Logic . . . . . . . . . .

693

DTC Confirmation Procedure . . . . . . . .

693

Diagnosis Procedure . . . . . . . . . . . .

693

Component Inspection . . . . . . . . . . ...

695

P0335 CKP SENSOR (POS) . . . . . . ...

696

Component Description . . . . . . . . . . .

696

On Board Diagnosis Logic . . . . . . . . . .

696

DTC Confirmation Procedure . . . . . . . .

696

Diagnosis Procedure . . . . . . . . . . . .

696

Component Inspection . . . . . . . . . . ...

698

P0340 CMP SENSOR (PHASE) . . . . . .

700

Component Description . . . . . . . . . . .

700

On Board Diagnosis Logic . . . . . . . . . .

700

DTC Confirmation Procedure . . . . . . . .

700

Diagnosis Procedure . . . . . . . . . . . .

701

Component Inspection . . . . . . . . . . ...

702

P0420, P0430 THREE WAY CATALYST
FUNCTION . . . . . . . . . . . . . ..

704

On Board Diagnosis Logic . . . . . . . . . .

704

DTC Confirmation Procedure . . . . . . . .

704

Overall Function Check . . . . . . . . . . .

705

Diagnosis Procedure . . . . . . . . . . . .

705

P0441 EVAP CONTROL SYSTEM . . . . .

708

System Description . . . . . . . . . . . .

708

On Board Diagnosis Logic . . . . . . . . . .

708

DTC Confirmation Procedure . . . . . . . .

708

Overall Function Check . . . . . . . . . . .

709

Diagnosis Procedure . . . . . . . . . . . .

709

Component Inspection . . . . . . . . . . ...

712

P0442 EVAP CONTROL SYSTEM . . . . .

713

On Board Diagnosis Logic . . . . . . . . . .

713

DTC Confirmation Procedure . . . . . . . .

714

Diagnosis Procedure . . . . . . . . . . . .

714

Component Inspection . . . . . . . . . . ...

719

P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE . . . . . ..

720

Description . . . . . . . . . . . . . . . .

720

On Board Diagnosis Logic . . . . . . . . . .

720

DTC Confirmation Procedure . . . . . . . .

721

Diagnosis Procedure . . . . . . . . . . . .

721

Component Inspection . . . . . . . . . . ...

724

2010 Pathfinder

EC-10

P0444, P0445 EVAP CANISTER PURGE
VOLUME CONTROL SOLENOID VALVE . ..

725

Description . . . . . . . . . . . . . . . .

725

On Board Diagnosis Logic . . . . . . . . . .

725

DTC Confirmation Procedure . . . . . . . .

726

Diagnosis Procedure . . . . . . . . . . . .

726

Component Inspection . . . . . . . . . . ...

727

P0447 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . .

728

Component Description . . . . . . . . . . .

728

On Board Diagnosis Logic . . . . . . . . . .

728

DTC Confirmation Procedure . . . . . . . .

728

Diagnosis Procedure . . . . . . . . . . . .

728

Component Inspection . . . . . . . . . . ...

730

P0448 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . .

732

Component Description . . . . . . . . . . .

732

On Board Diagnosis Logic . . . . . . . . . .

732

DTC Confirmation Procedure . . . . . . . .

732

Diagnosis Procedure . . . . . . . . . . . .

733

Component Inspection . . . . . . . . . . ...

734

P0451 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...

737

Component Description . . . . . . . . . . .

737

On Board Diagnosis Logic . . . . . . . . . .

737

DTC Confirmation Procedure . . . . . . . .

737

Diagnosis Procedure . . . . . . . . . . . .

738

Component Inspection . . . . . . . . . . ...

739

P0452 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...

740

Component Description . . . . . . . . . . .

740

On Board Diagnosis Logic . . . . . . . . . .

740

DTC Confirmation Procedure . . . . . . . .

740

Diagnosis Procedure . . . . . . . . . . . .

741

Component Inspection . . . . . . . . . . ...

743

P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...

744

Component Description . . . . . . . . . . .

744

On Board Diagnosis Logic . . . . . . . . . .

744

DTC Confirmation Procedure . . . . . . . .

744

Diagnosis Procedure . . . . . . . . . . . .

745

Component Inspection . . . . . . . . . . ...

748

P0455 EVAP CONTROL SYSTEM . . . . ..

749

On Board Diagnosis Logic . . . . . . . . . .

749

DTC Confirmation Procedure . . . . . . . .

749

Diagnosis Procedure . . . . . . . . . . . .

750

Component Inspection . . . . . . . . . . ...

755

P0456 EVAP CONTROL SYSTEM . . . . ..

756

On Board Diagnosis Logic . . . . . . . . . .

756

DTC Confirmation Procedure . . . . . . . .

757

Overall Function Check . . . . . . . . . . .

757

Diagnosis Procedure . . . . . . . . . . . .

758

Component Inspection . . . . . . . . . . ...

763

P0460 FUEL LEVEL SENSOR . . . . . . .

764

Component Description . . . . . . . . . .

764

On Board Diagnosis Logic . . . . . . . . .

764

DTC Confirmation Procedure . . . . . . . .

764

Diagnosis Procedure . . . . . . . . . . . .

764

P0461 FUEL LEVEL SENSOR . . . . . . .

766

Component Description . . . . . . . . . .

766

On Board Diagnosis Logic . . . . . . . . .

766

Overall Function Check . . . . . . . . . . .

766

Diagnosis Procedure . . . . . . . . . . . .

767

P0462, P0463 FUEL LEVEL SENSOR . . .

768

Component Description . . . . . . . . . .

768

On Board Diagnosis Logic . . . . . . . . .

768

DTC Confirmation Procedure . . . . . . . .

768

Diagnosis Procedure . . . . . . . . . . . .

768

P0500 VSS . . . . . . . . . . . . . .

770

Description . . . . . . . . . . . . . . .

770

On Board Diagnosis Logic . . . . . . . . .

770

DTC Confirmation Procedure . . . . . . . .

770

Overall Function Check . . . . . . . . . . .

771

Diagnosis Procedure . . . . . . . . . . . .

771

P0506 ISC SYSTEM . . . . . . . . . . .

772

Description . . . . . . . . . . . . . . .

772

On Board Diagnosis Logic . . . . . . . . .

772

DTC Confirmation Procedure . . . . . . . .

772

Diagnosis Procedure . . . . . . . . . . . .

772

P0507 ISC SYSTEM . . . . . . . . . . .

774

Description . . . . . . . . . . . . . . .

774

On Board Diagnosis Logic . . . . . . . . .

774

DTC Confirmation Procedure . . . . . . . .

774

Diagnosis Procedure . . . . . . . . . . . .

774

P0550 PSP SENSOR . . . . . . . . . ...

776

Component Description . . . . . . . . . .

776

On Board Diagnosis Logic . . . . . . . . .

776

DTC Confirmation Procedure . . . . . . . .

776

Diagnosis Procedure . . . . . . . . . . . .

776

Component Inspection . . . . . . . . . . ..

778

P0603 ECM POWER SUPPLY . . . . . . .

779

Component Description . . . . . . . . . .

779

On Board Diagnosis Logic . . . . . . . . .

779

DTC Confirmation Procedure . . . . . . . .

779

Diagnosis Procedure . . . . . . . . . . . .

779

P0605 ECM . . . . . . . . . . . . . ...

781

Component Description . . . . . . . . . .

781

On Board Diagnosis Logic . . . . . . . . .

781

DTC Confirmation Procedure . . . . . . . .

781

Diagnosis Procedure . . . . . . . . . . . .

782

P0607 ECM . . . . . . . . . . . . . ...

783

Description . . . . . . . . . . . . . . .

783

On Board Diagnosis Logic . . . . . . . . .

783

DTC Confirmation Procedure . . . . . . . .

783

Diagnosis Procedure . . . . . . . . . . . .

783

2010 Pathfinder

EC-11

C

D

E

F

G

H

I

J

K

L

M

EC

A

N

O

P

P0643 SENSOR POWER SUPPLY . . . . .

784

On Board Diagnosis Logic . . . . . . . . .

784

DTC Confirmation Procedure . . . . . . . .

784

Diagnosis Procedure . . . . . . . . . . . .

784

P0850 PNP SWITCH . . . . . . . . . .

787

Component Description . . . . . . . . . . .

787

On Board Diagnosis Logic . . . . . . . . .

787

DTC Confirmation Procedure . . . . . . . .

787

Overall Function Check . . . . . . . . . . .

787

Diagnosis Procedure . . . . . . . . . . . .

788

P1140, P1145 IVT CONTROL POSITION
SENSOR . . . . . . . . . . . . . . ...

790

Component Description . . . . . . . . . . .

790

On Board Diagnosis Logic . . . . . . . . .

790

DTC Confirmation Procedure . . . . . . . .

790

Diagnosis Procedure . . . . . . . . . . . .

790

Component Inspection . . . . . . . . . . ..

793

P1148, P1168 CLOSED LOOP CONTROL . .

794

On Board Diagnosis Logic . . . . . . . . .

794

P1211 TCS CONTROL UNIT . . . . . . ...

795

Description . . . . . . . . . . . . . . .

795

On Board Diagnosis Logic . . . . . . . . .

795

DTC Confirmation Procedure . . . . . . . .

795

Diagnosis Procedure . . . . . . . . . . . .

795

P1212 TCS COMMUNICATION LINE . . . ..

796

Description . . . . . . . . . . . . . . .

796

On Board Diagnosis Logic . . . . . . . . .

796

DTC Confirmation Procedure . . . . . . . .

796

Diagnosis Procedure . . . . . . . . . . . .

796

P1217 ENGINE OVER TEMPERATURE . . .

797

On Board Diagnosis Logic . . . . . . . . .

797

Overall Function Check . . . . . . . . . . .

797

Diagnosis Procedure . . . . . . . . . . . .

798

Main 12 Causes of Overheating . . . . . . .

799

P1225 TP SENSOR . . . . . . . . . . ..

801

Component Description . . . . . . . . . . .

801

On Board Diagnosis Logic . . . . . . . . .

801

DTC Confirmation Procedure . . . . . . . .

801

Diagnosis Procedure . . . . . . . . . . . .

801

P1226 TP SENSOR . . . . . . . . . . ..

803

Component Description . . . . . . . . . . .

803

On Board Diagnosis Logic . . . . . . . . .

803

DTC Confirmation Procedure . . . . . . . .

803

Diagnosis Procedure . . . . . . . . . . . .

803

P1421 COLD START CONTROL . . . . . .

805

Description . . . . . . . . . . . . . . .

805

On Board Diagnosis Logic . . . . . . . . .

805

DTC Confirmation Procedure . . . . . . . .

805

Diagnosis Procedure . . . . . . . . . . . .

805

P1550 BATTERY CURRENT SENSOR . . ...

807

Component Description . . . . . . . . . . .

807

On Board Diagnosis Logic . . . . . . . . . .

807

DTC Confirmation Procedure . . . . . . . .

807

Diagnosis Procedure . . . . . . . . . . . .

807

Component Inspection . . . . . . . . . . ...

809

P1551, P1552 BATTERY CURRENT SEN-
SOR . . . . . . . . . . . . . . . . .

811

Component Description . . . . . . . . . . .

811

On Board Diagnosis Logic . . . . . . . . . .

811

DTC Confirmation Procedure . . . . . . . .

811

Diagnosis Procedure . . . . . . . . . . . .

811

Component Inspection . . . . . . . . . . ...

813

P1553 BATTERY CURRENT SENSOR . . ..

815

Component Description . . . . . . . . . . .

815

On Board Diagnosis Logic . . . . . . . . . .

815

DTC Confirmation Procedure . . . . . . . .

815

Diagnosis Procedure . . . . . . . . . . . .

815

Component Inspection . . . . . . . . . . ...

817

P1554 BATTERY CURRENT SENSOR . . ..

819

Component Description . . . . . . . . . . .

819

On Board Diagnosis Logic . . . . . . . . . .

819

Overall Function Check . . . . . . . . . . .

819

Diagnosis Procedure . . . . . . . . . . . .

820

Component Inspection . . . . . . . . . . ...

821

P1564 ASCD STEERING SWITCH . . . . .

823

Component Description . . . . . . . . . . .

823

On Board Diagnosis Logic . . . . . . . . . .

823

DTC Confirmation Procedure . . . . . . . .

823

Diagnosis Procedure . . . . . . . . . . . .

823

Component Inspection . . . . . . . . . . ...

825

P1572 ASCD BRAKE SWITCH . . . . . ..

827

Component Description . . . . . . . . . . .

827

On Board Diagnosis Logic . . . . . . . . . .

827

DTC Confirmation Procedure . . . . . . . .

827

Diagnosis Procedure . . . . . . . . . . . .

828

Component Inspection . . . . . . . . . . ...

831

P1805 BRAKE SWITCH . . . . . . . . .

832

Description . . . . . . . . . . . . . . . .

832

On Board Diagnosis Logic . . . . . . . . . .

832

DTC Confirmation Procedure . . . . . . . .

832

Diagnosis Procedure . . . . . . . . . . . .

832

Component Inspection . . . . . . . . . . ...

834

P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY . . . . . . . . . . . . .

835

Component Description . . . . . . . . . . .

835

On Board Diagnosis Logic . . . . . . . . . .

835

DTC Confirmation Procedure . . . . . . . .

835

Diagnosis Procedure . . . . . . . . . . . .

835

P2101 ELECTRIC THROTTLE CONTROL
FUNCTION . . . . . . . . . . . . . ..

838

Description . . . . . . . . . . . . . . . .

838

On Board Diagnosis Logic . . . . . . . . . .

838

DTC Confirmation Procedure . . . . . . . .

838

2010 Pathfinder

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