Infiniti FX35, FX50 (S51). Manual - part 615

 

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Infiniti FX35, FX50 (S51). Manual - part 615

 

 

EC-1

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SECTION 

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CONTENTS

ENGINE CONTROL SYSTEM

VQ35HR

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

16

DIAGNOSIS AND REPAIR WORKFLOW  .........

16

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

16

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

19

INSPECTION AND ADJUSTMENT ....................

20

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

20

BASIC INSPECTION : Special Repair Require-
ment ........................................................................

20

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT  ........................................................

23

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT : Description  ................................

23

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT : Special Repair Requirement  .....

23

IDLE SPEED  ..............................................................

23

IDLE SPEED : Description  ......................................

24

IDLE SPEED : Special Repair Requirement  ...........

24

IGNITION TIMING ......................................................

24

IGNITION TIMING : Description ..............................

24

IGNITION TIMING : Special Repair Requirement 

....

24

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

24

VIN REGISTRATION : Description  .........................

24

VIN REGISTRATION : Special Repair Require-
ment ........................................................................

24

ACCELERATOR PEDAL RELEASED POSITION 
LEARNING ................................................................

25

ACCELERATOR PEDAL RELEASED POSITION 
LEARNING : Description .........................................

25

ACCELERATOR PEDAL RELEASED POSITION 
LEARNING : Special Repair Requirement  ..............

25

THROTTLE VALVE CLOSED POSITION LEARN-
ING .............................................................................

25

THROTTLE VALVE CLOSED POSITION 
LEARNING : Description  .........................................

25

THROTTLE VALVE CLOSED POSITION 
LEARNING : Special Repair Requirement  ..............

25

IDLE AIR VOLUME LEARNING  ................................

25

IDLE AIR VOLUME LEARNING : Description  .........

25

IDLE AIR VOLUME LEARNING : Special Repair 
Requirement ............................................................

25

EXHAUST VALVE TIMING CONTROL LEARNING 

....

27

EXHAUST VALVE TIMING CONTROL LEARN-
ING : Description  .....................................................

27

EXHAUST VALVE TIMING CONTROL LEARN-
ING : Special Repair Requirement  ..........................

27

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

28

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

28

MIXTURE RATIO SELF-LEARNING VALUE 
CLEAR : Special Repair Requirement .....................

28

SYSTEM DESCRIPTION  .............................

29

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

29

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

29

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

30

Component Parts Location  ......................................

31

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

37

MULTIPORT FUEL INJECTION SYSTEM  .......

39

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

39

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

39

Component Parts Location  ......................................

42

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

48

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

50

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

50

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

50

Component Parts Location  ......................................

51

EC-2

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

57

AIR CONDITIONING CUT CONTROL  ..............

58

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

58

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

58

Component Parts Location  .....................................

59

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

65

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

66

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

66

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

66

Component Parts Location  .....................................

68

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

74

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

75

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

75

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

76

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

76

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

76

Component Parts Location  .....................................

77

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

83

EVAPORATIVE EMISSION SYSTEM  ...............

84

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

84

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

84

Component Parts Location  .....................................

87

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

93

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

95

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

95

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

95

Component Parts Location  .....................................

96

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

102

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

103

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

103

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

103

Component Parts Location  ....................................

104

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

110

ON BOARD DIAGNOSTIC (OBD) SYSTEM  ...

111

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

111

CONSULT-III Function  ..........................................

124

Diagnosis Tool Function ......................................

132

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

134

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

134

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

134

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

134

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

135

POWER SUPPLY AND GROUND CIRCUIT  ...

142

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

142

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

145

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

145

DTC Logic ..............................................................

145

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

145

U0164 CAN COMM CIRCUIT  ...........................

146

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

146

DTC Logic  .............................................................

146

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

146

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

147

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

147

DTC Logic  .............................................................

147

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

147

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

148

DTC Logic  .............................................................

148

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

149

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

150

P0014, P0024 EVT CONTROL .........................

152

DTC Logic  .............................................................

152

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

153

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

154

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

156

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

156

DTC Logic  .............................................................

156

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

157

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

158

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

159

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

159

DTC Logic  .............................................................

159

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

160

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

161

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

162

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

162

DTC Logic  .............................................................

162

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

162

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

163

P0078, P0084 EVT CONTROL MAGNET RE-
TARDER ...........................................................

165

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

165

DTC Logic  .............................................................

165

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

165

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

166

P0101, P010B MAF SENSOR ..........................

168

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

168

DTC Logic  .............................................................

168

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

170

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

170

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

172

P0102, P0103, P010C, P010D MAF SENSOR ..

175

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

175

DTC Logic  .............................................................

175

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

176

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

177

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

181

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

181

DTC Logic  .............................................................

181

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

182

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

182

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

184

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

184

DTC Logic  .............................................................

184

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

185

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

185

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

186

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

186

DTC Logic  .............................................................

186

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

187

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

188

P0122, P0123, P0227, P0228 TP SENSOR .....

189

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

189

DTC Logic  .............................................................

189

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

190

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

191

Special Repair Requirement  .................................

191

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

193

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

193

DTC Logic  .............................................................

193

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

194

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

194

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

196

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

196

DTC Logic  .............................................................

196

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

197

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

197

P0128 THERMOSTAT FUNCTION  ..................

198

DTC Logic  .............................................................

198

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

199

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

199

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

200

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

200

DTC Logic  .............................................................

200

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

202

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

202

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

204

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

204

DTC Logic  .............................................................

204

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

205

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

207

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

207

DTC Logic  .............................................................

207

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

208

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

210

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

210

DTC Logic ..............................................................

210

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

212

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

215

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

215

DTC Logic ..............................................................

215

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

216

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

217

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

218

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

221

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

221

DTC Logic ..............................................................

221

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

223

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

224

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

226

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

229

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

229

DTC Logic ..............................................................

229

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

230

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

231

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

232

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

235

DTC Logic ..............................................................

235

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

236

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

239

DTC Logic ..............................................................

239

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

240

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

243

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

243

DTC Logic ..............................................................

243

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

244

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

245

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

246

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

246

DTC Logic ..............................................................

246

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

246

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

248

P0196 EOT SENSOR ......................................

249

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

249

DTC Logic ..............................................................

249

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

250

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

251

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

252

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

252

DTC Logic ..............................................................

252

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

253

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

253

P0222, P0223, P2132, P2133 TP SENSOR  ...

255

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

255

DTC Logic ..............................................................

255

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

256

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

257

Special Repair Requirement ..................................

257

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

259

DTC Logic ..............................................................

259

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

260

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

265

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

265

DTC Logic ..............................................................

265

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

265

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

266

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

268

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

268

DTC Logic ..............................................................

268

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

269

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

271

P0340, P0345 CMP SENSOR  .........................

273

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

273

DTC Logic ..............................................................

273

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

275

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

277

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

279

DTC Logic ..............................................................

279

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

280

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

281

P0441 EVAP CONTROL SYSTEM ..................

284

DTC Logic ..............................................................

284

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

285

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

286

P0442 EVAP CONTROL SYSTEM ..................

289

DTC Logic ..............................................................

289

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

290

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

294

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

295

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

295

DTC Logic ..............................................................

295

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

296

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

299

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

300

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

300

DTC Logic ..............................................................

300

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

300

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

302

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

303

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

303

DTC Logic  .............................................................

303

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

303

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

305

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

307

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

307

DTC Logic  .............................................................

307

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

308

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

309

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

311

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

311

DTC Logic  .............................................................

311

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

312

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

313

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

315

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

315

DTC Logic  .............................................................

315

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

316

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

319

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

320

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

320

DTC Logic  .............................................................

320

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

321

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

324

P0455 EVAP CONTROL SYSTEM  ..................

326

DTC Logic  .............................................................

326

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

328

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

330

P0456 EVAP CONTROL SYSTEM  ..................

332

DTC Logic  .............................................................

332

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

334

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

334

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

338

P0460 FUEL LEVEL SENSOR .........................

339

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

339

DTC Logic  .............................................................

339

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

339

P0461 FUEL LEVEL SENSOR .........................

341

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

341

DTC Logic  .............................................................

341

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

341

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

342

P0462, P0463 FUEL LEVEL SENSOR  ............

343

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

343

DTC Logic  .............................................................

343

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

343

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

345

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

345

EC-

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