Nissan X-Trail 32. Manual — part 718

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SECTION

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CONTENTS

ENGINE CONTROL SYSTEM

MR20DD

HOW TO USE THIS MANUAL . . . . . .

20

HOW TO USE THIS SECTION . . . . . . ...

20

Information . . . . . . . . . . . . . . . ..

20

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

21

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

21

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

21

Precaution for Procedure without Cowl Top Cover

.

21

Precautions for Removing Battery Terminal . . ...

21

On Board Diagnostic (OBD) System of Engine
and CVT . . . . . . . . . . . . . . . . ..

22

General Precautions . . . . . . . . . . . ...

23

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

26

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

26

Special Service Tools . . . . . . . . . . . ..

26

Commercial Service Tools . . . . . . . . . ..

26

SYSTEM DESCRIPTION . . . . . . . .

28

COMPONENT PARTS . . . . . . . . . ...

28

ENGINE CONTROL SYSTEM . . . . . . . . ...

28

ENGINE CONTROL SYSTEM : Component Parts
Location . . . . . . . . . . . . . . . . ...

28

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

32

Accelerator Pedal Position Sensor . . . . . . ..

32

Electric Throttle Control Actuator . . . . . . .

32

Ignition Coil With Power Transistor . . . . . . .

33

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

34

High Pressure Fuel Pump . . . . . . . . . ...

34

Fuel Rail Pressure Sensor . . . . . . . . . ..

35

Low Pressure Fuel Pump . . . . . . . . . .

35

Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) . . . . . . . . . . . . . . .

35

Engine Coolant Temperature Sensor . . . . . ..

36

Crankshaft Position Sensor . . . . . . . . . .

37

Camshaft Position Sensor . . . . . . . . . ...

37

Intake Valve Timing Control Solenoid Valve . . ...

37

Exhaust Valve Timing Control Position Sensor . ...

37

Exhaust Valve Timing Control Solenoid Valve . .

38

Intake Manifold Runner Control Valve . . . . . .

38

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

38

Heated Oxygen Sensor 2 . . . . . . . . . .

39

Atmospheric Pressure Sensor . . . . . . . . .

39

Knock Sensor . . . . . . . . . . . . . . ..

39

Engine Oil Pressure Sensor . . . . . . . . .

40

Engine Oil Temperature Sensor . . . . . . . ..

40

Cooling Fan . . . . . . . . . . . . . . . .

40

EVAP Canister Purge Volume Control Solenoid
Valve . . . . . . . . . . . . . . . . . .

40

Refrigerant Pressure Sensor . . . . . . . . ...

41

Stop Lamp Switch and Brake pedal position
switch . . . . . . . . . . . . . . . . . ...

41

Clutch Pedal Position Switch . . . . . . . . ...

41

ASCD Steering Switch . . . . . . . . . . . .

41

STRUCTURE AND OPERATION . . . . . .

42

Positive Crankcase Ventilation . . . . . . . .

42

SYSTEM . . . . . . . . . . . . . . .

43

ENGINE CONTROL SYSTEM . . . . . . . . ...

43

ENGINE CONTROL SYSTEM : System Descrip-
tion . . . . . . . . . . . . . . . . . . ...

43

ENGINE CONTROL SYSTEM : Fail-safe . . . .

44

ENGINE CONTROL SYSTEM : Circuit Diagram . .

48

DIG (DIRECT INJECTION GASOLINE) SYSTEM . .

50

DIG (DIRECT INJECTION GASOLINE) SYSTEM
: System Description . . . . . . . . . . . .

51

FUEL PRESSURE CONTROL . . . . . . . . ...

54

FUEL PRESSURE CONTROL : System Descrip-
tion . . . . . . . . . . . . . . . . . . ...

54

ELECTRIC IGNITION SYSTEM . . . . . . . . .

55

EC-2

ELECTRIC IGNITION SYSTEM : System De-
scription . . . . . . . . . . . . . . . . ..

55

IDLE SPEED CONTROL . . . . . . . . . . ...

56

IDLE SPEED CONTROL : System Description . ..

56

COOLING FAN CONTROL . . . . . . . . . ...

57

COOLING FAN CONTROL : System Description ...

57

INTAKE VALVE TIMING CONTROL . . . . . ....

57

INTAKE VALVE TIMING CONTROL : System De-
scription . . . . . . . . . . . . . . . . ..

58

EXHAUST VALVE TIMING CONTROL . . . . ....

59

EXHAUST VALVE TIMING CONTROL : System
Description . . . . . . . . . . . . . . . ..

59

INTAKE MANIFOLD RUNNER CONTROL . . . ..

61

INTAKE MANIFOLD RUNNER CONTROL : Sys-
tem Description . . . . . . . . . . . . . ...

61

ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE . . . . . . . . . . . ..

62

ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE : System Description . . .

62

AIR CONDITIONING CUT CONTROL . . . . . ..

63

AIR CONDITIONING CUT CONTROL : System
Description . . . . . . . . . . . . . . . ..

63

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...

63

AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description . . . . . . . . . ...

64

ECO MODE SYSTEM . . . . . . . . . . . ...

64

ECO MODE SYSTEM : System Description . . ..

65

INTEGRATED CONTROL OF ENGINE, CVT, AND
ABS . . . . . . . . . . . . . . . . . . ...

65

INTEGRATED CONTROL OF ENGINE, CVT,
AND ABS : System Description . . . . . . . ..

65

EVAPORATIVE EMISSION SYSTEM . . . . . ...

65

EVAPORATIVE EMISSION SYSTEM : System
Description . . . . . . . . . . . . . . . ..

66

POWER GENERATION VOLTAGE VARIABLE
CONTROL SYSTEM . . . . . . . . . . . . .

66

POWER GENERATION VOLTAGE VARIABLE
CONTROL SYSTEM : System Description . . ....

66

INFORMATION DISPLAY (COMBINATION
METER) . . . . . . . . . . . . . . . . . .

67

INFORMATION DISPLAY (COMBINATION
METER) : Indicator/Information . . . . . . . ..

67

INFORMATION DISPLAY (COMBINATION
METER) : Engine Oil Pressure Warining . . . ....

67

WARNING/INDICATOR/CHIME LIST . . . . . ...

68

WARNING/INDICATOR/CHIME LIST : Warning
lamps/Indicator lamps . . . . . . . . . . . .

68

WARNING/INDICATOR/CHIME LIST : Warning/
Indicator (On Information Display) . . . . . . ..

69

CAN COMMUNICATION . . . . . . . . . . ...

69

CAN COMMUNICATION : System Description . ..

69

OPERATION . . . . . . . . . . . . . ..

70

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...

70

AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : Switch Name and Function . . . . . . .

70

ON BOARD DIAGNOSTIC (OBD) SYSTEM . .

71

Diagnosis Description . . . . . . . . . . . .

71

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

71

DIAGNOSIS SYSTEM (ECM) . . . . . . .

72

DIAGNOSIS DESCRIPTION . . . . . . . . . .

72

DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic . . . . . .

72

DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data . . . . . . . . . . . . . . . .

72

DIAGNOSIS DESCRIPTION : Counter System . ..

73

DIAGNOSIS DESCRIPTION : Driving Pattern . .

76

DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code . . . . . . . . . . . . . .

77

DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) . . . . . . . . . . . . . .

78

On Board Diagnosis Function . . . . . . . . .

79

CONSULT Function . . . . . . . . . . . .

81

ECU DIAGNOSIS INFORMATION . . . .

89

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

89

Reference Value . . . . . . . . . . . . . .

89

Fail-safe . . . . . . . . . . . . . . . .

103

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

107

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

109

Test Value and Test Limit . . . . . . . . . .

112

WIRING DIAGRAM . . . . . . . . ...

119

ENGINE CONTROL SYSTEM . . . . . . ..

119

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

119

BASIC INSPECTION . . . . . . . . .

136

DIAGNOSIS AND REPAIR WORKFLOW . .

136

Work Flow . . . . . . . . . . . . . . . .

136

Diagnostic Work Sheet . . . . . . . . . . .

139

ADDITIONAL SERVICE WHEN REPLACING
ECM . . . . . . . . . . . . . . . . ..

141

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

141

Work Procedure . . . . . . . . . . . . .

141

VIN REGISTRATION . . . . . . . . . .

143

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

143

Work Procedure . . . . . . . . . . . . .

143

ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING . . . . . . . . . . . ..

144

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

144

Work Procedure . . . . . . . . . . . . .

144

EC-3

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THROTTLE VALVE CLOSED POSITION
LEARNING . . . . . . . . . . . . . ...

145

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

145

Work Procedure . . . . . . . . . . . . .

145

IDLE AIR VOLUME LEARNING . . . . . ..

146

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

146

Work Procedure . . . . . . . . . . . . .

146

MIXTURE RATIO SELF-LEARNING VALUE
CLEAR . . . . . . . . . . . . . . . ..

148

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

148

Work Procedure . . . . . . . . . . . . .

148

BASIC INSPECTION . . . . . . . . . .

149

Work Procedure . . . . . . . . . . . . .

149

FUEL PRESSURE CHECK . . . . . . . ..

152

Work Procedure . . . . . . . . . . . . .

152

DTC/CIRCUIT DIAGNOSIS . . . . . ...

154

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

154

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

154

Component Function Check . . . . . . . . ..

154

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

155

POWER SUPPLY AND GROUND CIRCUIT .

162

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

162

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

165

DTC Description . . . . . . . . . . . . .

165

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

165

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

166

DTC Description . . . . . . . . . . . . .

166

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

166

U1040 ENG COMM CIRCUIT . . . . . . ...

167

DTC Description . . . . . . . . . . . . .

167

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

167

U1044 ENG COMM CIRCUIT . . . . . . ...

169

DTC Description . . . . . . . . . . . . .

169

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

169

U1050, U1051 LIN COMMUNICATION . . .

171

DTC Description . . . . . . . . . . . . .

171

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

171

P0011 IVT CONTROL . . . . . . . . . ..

173

DTC Description . . . . . . . . . . . . .

173

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

174

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

176

P0014 EVT CONTROL . . . . . . . . . .

177

DTC Description . . . . . . . . . . . . .

177

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

178

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

179

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

181

DTC Description . . . . . . . . . . . . .

181

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

181

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

182

P0037, P0038 HO2S2 HEATER . . . . . .

184

DTC Description . . . . . . . . . . . . .

184

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

184

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

185

P0075 IVT CONTROL SOLENOID VALVE .

187

DTC Description . . . . . . . . . . . . .

187

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

187

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

188

P0078 EVT CONTROL SOLENOID VALVE ...

190

DTC Description . . . . . . . . . . . . .

190

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

190

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

191

P0087, P0088, P0090 FRP CONTROL SYS-
TEM . . . . . . . . . . . . . . . . .

193

DTC Description . . . . . . . . . . . . .

193

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

194

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

194

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

196

DTC Description . . . . . . . . . . . . .

196

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

197

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

199

P0107, P0108 ATMOSPHERIC PRESSURE
SENSOR . . . . . . . . . . . . . . ..

202

DTC Description . . . . . . . . . . . . .

202

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

202

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

204

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

206

DTC Description . . . . . . . . . . . . .

206

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

206

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

207

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

208

DTC Description . . . . . . . . . . . . .

208

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

208

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

209

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

211

DTC Description . . . . . . . . . . . . .

211

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

211

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

213

P0130 A/F SENSOR 1 . . . . . . . . .

214

DTC Description . . . . . . . . . . . . .

214

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

215

P0131 A/F SENSOR 1 . . . . . . . . .

217

DTC Description . . . . . . . . . . . . .

217

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

218

P0132 A/F SENSOR 1 . . . . . . . . .

220

DTC Description . . . . . . . . . . . . .

220

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

221

EC-4

P0137 HO2S2 . . . . . . . . . . . . ..

223

DTC Description . . . . . . . . . . . . .

223

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

225

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

226

P0138 HO2S2 . . . . . . . . . . . . ..

229

DTC Description . . . . . . . . . . . . .

229

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

231

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

234

P0139 HO2S2 . . . . . . . . . . . . ..

237

DTC Description . . . . . . . . . . . . .

237

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

239

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

241

P014C, P014D A/F SENSOR 1 . . . . . ...

243

DTC Description . . . . . . . . . . . . .

243

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

245

P0171 FUEL INJECTION SYSTEM FUNC-
TION . . . . . . . . . . . . . . . . .

248

DTC Description . . . . . . . . . . . . .

248

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

249

P0172 FUEL INJECTION SYSTEM FUNC-
TION . . . . . . . . . . . . . . . . .

253

DTC Description . . . . . . . . . . . . .

253

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

254

P0190 FRP SENSOR . . . . . . . . . ...

258

DTC Description . . . . . . . . . . . . .

258

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

258

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

260

P0197, P0198 EOT SENSOR . . . . . . ..

262

DTC Description . . . . . . . . . . . . .

262

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

262

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

263

P0201, P0202, P0203, P0204 FUEL INJEC-
TOR . . . . . . . . . . . . . . . . ..

264

DTC Description . . . . . . . . . . . . .

264

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

264

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

265

DTC Description . . . . . . . . . . . . .

265

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

265

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

267

P0300, P0301, P0302, P0303, P0304 MIS-
FIRE . . . . . . . . . . . . . . . . .

268

DTC Description . . . . . . . . . . . . .

268

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

270

P0327, P0328 KS . . . . . . . . . . . .

275

DTC Description . . . . . . . . . . . . .

275

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

275

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

276

P0335 CKP SENSOR . . . . . . . . . ..

277

DTC Description . . . . . . . . . . . . .

277

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

277

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

279

P0340 CMP SENSOR . . . . . . . . . ...

282

DTC Description . . . . . . . . . . . . .

282

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

283

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

285

P0365 EXHAUST VALVE TIMING CONTROL
POSITION SENSOR . . . . . . . . . . .

286

DTC Description . . . . . . . . . . . . .

286

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

287

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

289

P0420 THREE WAY CATALYST FUNCTION ..

290

DTC Description . . . . . . . . . . . . .

290

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

291

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

295

DTC Description . . . . . . . . . . . . .

295

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

295

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

296

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

298

DTC Description . . . . . . . . . . . . .

298

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

299

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

300

DTC Description . . . . . . . . . . . . .

300

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

301

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

302

DTC Description . . . . . . . . . . . . .

302

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

303

P0520 EOP SENSOR . . . . . . . . . ...

304

DTC Description . . . . . . . . . . . . .

304

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

304

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

306

P0524 ENGINE OIL PRESSURE . . . . . .

307

DTC Description . . . . . . . . . . . . .

307

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

308

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

309

P0603, P062F ECM . . . . . . . . . . ..

311

DTC Description . . . . . . . . . . . . .

311

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

312

P0604 ECM . . . . . . . . . . . . . ...

313

DTC Description . . . . . . . . . . . . .

313

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

313

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

314

DTC Description . . . . . . . . . . . . .

314

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

314

P0606 ECM . . . . . . . . . . . . . ...

315

DTC Description . . . . . . . . . . . . .

315

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

316