Qashqai J11. Engine control system (K9K) - part 1

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SECTION

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ECK

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CONTENTS

ENGINE CONTROL SYSTEM (K9K)

K9K

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

9

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

9

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

9

Precaution for Procedure without Cowl Top Cover

......

9

Precautions for Removing Battery Terminal .............

9

Precaution for Stop/Start System Service ...............

10

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

11

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

12

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

12

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

12

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

16

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

16

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

16

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

16

Intake Air Temperature Sensor 1 ............................

16

Turbocharger Boost Sensor ....................................

17

Intake Air Temperature Sensor 2 ............................

17

Engine Coolant Temperature Sensor ......................

17

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

17

FPCM (Fuel Pump Control Module) ........................

17

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

17

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

18

Fuel Temperature Sensor .......................................

18

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

18

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

18

Turbocharger Boost Control Solenoid Valve ...........

18

High Pressure EGR Volume Control Valve .............

18

Low Pressure EGR Volume Control Valve ..............

18

Low Pressure EGR Temperature Sensor ...............

19

Electric Throttle Control Actuator ............................

19

Exhaust Electric Throttle Control Actuator ..............

19

DPF (Diesel Particulate Filter) .................................

19

Exhaust Gas Pressure Sensor ................................

20

DPF Differential Pressure Sensor ...........................

20

Exhaust Gas Temperature Sensor 1 .......................

20

Exhaust Gas Temperature Sensor 2 .......................

20

Glow Control Unit ....................................................

20

Glow Plug ................................................................

20

Glow Indicator Lamp ................................................

21

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

21

Cooling Fan Resistor ...............................................

21

Thermoplunger Unit .................................................

21

Thermoplunger Control Unit ....................................

21

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

21

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

21

Stop Lamp Switch ....................................................

21

Clutch Interlock Switch & Clutch Pedal Position
Switch ......................................................................

21

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

22

Malfunction Indicator Lamp .....................................

22

Information Display ..................................................

22

DC/DC Converter ....................................................

22

Engine Restart Relay ...............................................

22

Engine Restart Bypass Control Relay .....................

22

Engine Restart Bypass Relay ..................................

22

Hood Switch ............................................................

23

Stop/Start Indicator Lamp ........................................

23

Stop/Start OFF Switch .............................................

23

Fuel Heater With Water In Fuel Level Sensor .........

23

Reverse/Neutral Position Switch .............................

24

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

25

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

25

ENGINE CONTROL SYSTEM : System Diagram ....

25

ENGINE CONTROL SYSTEM : Vacuum Hose
Drawing ...................................................................

25

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

26

ENGINE SPEED CONTROL ......................................

26

ENGINE SPEED CONTROL : System Description

....

26

POWERTRAIN COORDINATION CONTROL ...........

27

ECK-2

POWERTRAIN COORDINATION CONTROL :
System Description ................................................
.

27

TURBOCHARGER BOOST CONTROL ...................

27

TURBOCHARGER BOOST CONTROL : System
Description .............................................................
.

28

EGR SYSTEM ...........................................................

28

EGR SYSTEM : System Description ......................

28

THROTTLE CONTROL .............................................

29

THROTTLE CONTROL : System Description ........

29

SWIRL CONTROL SYSTEM .....................................

29

SWIRL CONTROL SYSTEM : System Description

...

29

ENGINE TORQUE CONTROL ..................................

30

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

30

COMBUSTION CONTROL .......................................

32

COMBUSTION CONTROL : System Description ...

32

AFTER TREATMENT SYSTEM ................................

33

AFTER TREATMENT SYSTEM : System De-
scription .................................................................
.

33

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

34

COOLING FAN CONTROL : System Description ...

34

THERMOSTAT CONTROL .......................................

35

THERMOSTAT CONTROL : System Description ...

35

GLOW CONTROL .....................................................

35

GLOW CONTROL : System Description ................

35

OIL CONTROL SYSTEM ..........................................

35

OIL CONTROL SYSTEM : System Description ......

36

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...

36

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

36

SPEED LIMITER .......................................................

37

SPEED LIMITER : System Description ..................

37

GEAR SHIFT INDICATOR SYSTEM ........................

38

GEAR SHIFT INDICATOR SYSTEM : System De-
scription .................................................................
.

38

STOP/START SYSTEM ............................................

38

STOP/START SYSTEM : System Description .......

39

ENERGY MANAGEMENT SYSTEM .........................

46

ENERGY MANAGEMENT SYSTEM : System De-
scription .................................................................
.

46

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

46

CAN COMMUNICATION : System Description ......

46

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

47

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...

47

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

47

SPEED LIMITER .......................................................

47

SPEED LIMITER : Switch Name and Function .......

47

OIL CONTROL SYSTEM ..........................................

48

OIL CONTROL SYSTEM : Switch Name and
Function ..................................................................

48

STOP/START SYSTEM ............................................

49

STOP/START SYSTEM : Switch Name and Func-
tion ..........................................................................

49

HANDLING PRECAUTION ...............................

50

Precaution for Stop/Start System ............................

50

ON BOARD DIAGNOSTIC (OBD) SYSTEM .....

51

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

51

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

52

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

52

ECU DIAGNOSIS INFORMATION .............

76

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

76

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

76

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

88

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

95

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

97

DC/DC CONVERTER .......................................

101

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

101

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

103

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

103

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

103

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

124

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

124

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

124

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

126

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

126

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

128

SERVICE AFTER REPLACING OR REMOV-
ING ENGINE PARTS ........................................

130

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

130

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

131

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

131

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

131

INJECTOR ADJUSTMENT VALUE REGIS-
TRATION ..........................................................

134

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

134

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

134

THROTTLE VALVE POSITION LEARNING ....

136

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

136

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

136

EXHAUST THROTTLE VALVE POSITION
LEARNING .......................................................

137

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

137

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

137

EGR VOLUME CONTROL VALVE POSITION
LEARNING .......................................................

138

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

138

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

138

LOW PRESSURE EGR VOLUME CONTROL
VALVE POSITION LEARNING ........................

139

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

139

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

139

DIESEL PARTICULATE FILTER DATA
CLEAR ..............................................................

140

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

140

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

140

MASS AIR FLOW SENSOR LEARNING VAL-
UE CLEAR ........................................................

141

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

141

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

141

TURBOCHARGER LEARNING VALUE
CLEAR ..............................................................

142

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

142

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

142

TURBOCHARGER BOOST SENSOR .............

143

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

143

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

143

DPF DIFFERENTIAL PRESSURE SENSOR
LEARNING VALUE CLEAR .............................

144

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

144

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

144

HIGH PRESSURE FUEL PUMP TOTAL
STARTS COUNTER RESET ............................

145

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

145

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

145

STARTER OPERATION COUNTER CLEAR ..

146

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

146

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

146

ENGINE OIL DATA RESET .............................

147

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

147

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

147

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

148

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

148

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

148

SERVICE REGENERATION ............................

149

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

149

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

149

ACCELERATOR PEDAL ................................

152

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

152

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

153

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

153

INJECTOR CHECK .........................................

154

Work Procedure (Fuel Injectors Leak Check) ........

154

Work Procedure (Fuel Injection Quantity Check) ..

155

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

156

POWER SUPPLY AND GROUND CIRCUIT ..

156

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

156

ECM : Diagnosis Procedure ..................................

156

U0019 LIN BUS OFF ERROR .........................

159

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

159

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

159

U0111 LIN COMMUNICATION .......................

160

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

160

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

160

U0121 CAN COMMUNICATION .....................

161

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

161

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

161

U0298 COMMUNICATION WITH DC/DC
CONVERTER CONTROL UNIT ......................

162

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

162

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

162

U0299 LOST COMMUNICATION (DC/DC
CONVERTER) .................................................

164

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

164

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

164

U0315 CAN COMMUNICATION [ABS ACTU-
ATOR AND ELECTRIC UNIT (CONTROL
UNIT)] ..............................................................

166

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

166

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

166

U0415 CAN COMMUNICATION .....................

167

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

167

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

167

B1900 DC/DC CONVERTER ..........................

168

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

168

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

168

B1901 DC/DC CONVERTER ..........................

170

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

170

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

170

B1902 DC/DC CONVERTER ..........................

172

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

172

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

172

ECK-4

B1903 DC/DC CONVERTER ...........................

174

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

174

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

174

B1904 DC/DC CONVERTER ...........................

176

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

176

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

176

P0001 FUEL PUMP .........................................

177

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

177

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

177

Component Inspection (High Pressure Fuel
Pump) ....................................................................

178

P0002 FUEL PRESSURE ................................

179

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

179

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

179

Component Inspection (High Pressure Fuel
Pump) ....................................................................

180

Component Inspection (Fuel Injector) ...................

180

P0016 CKP - CMP CORRELATION ................

181

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

181

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

181

Component Inspection (Crankshaft Position Sen-
sor) ........................................................................

182

Component Inspection (Camshaft Position Sen-
sor) ........................................................................

182

P0045 TC BOOST CONTROL SOLENOID
VALVE .............................................................

183

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

183

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

183

P0087 FUEL SYSTEM .....................................

185

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

185

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

185

Component Inspection (Low Pressure Fuel Pump)

..

186

P0089 FUEL PRESSURE ................................

187

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

187

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

187

Component Inspection (High Pressure Fuel
Pump) ....................................................................

189

Component Inspection (Fuel Injector) ...................

189

P0095 IAT SENSOR 2 .....................................

190

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

190

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

190

Component Inspection (Intake Air Temperature
Sensor 2) ...............................................................

191

Component Inspection (Low Pressure EGR Tem-
perature Sensor) ....................................................

191

P0100 MAF SENSOR ......................................

193

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

193

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

193

Component Inspection (Mass Air Flow Sensor) ....

194

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

195

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

195

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

195

Component Inspection (Turbocharger Boost Sen-
sor) ........................................................................

195

P0105 TC BOOST SENSOR ............................

197

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

197

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

197

Component Inspection (Turbocharger Boost Sen-
sor) ........................................................................

198

P0110 IAT SENSOR .........................................

199

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

199

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

199

Component Inspection (Intake Air Temperature
Sensor 1) ..............................................................

200

P0115 ECT SENSOR .......................................

201

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

201

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

201

Component Inspection (Engine Coolant Tempera-
ture Sensor) ..........................................................

202

P0120 TP SENSOR ..........................................

203

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

203

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

203

Component Inspection (Throttle Position Sensor) .

204

P0180 FUEL TEMPERATURE SENSOR .........

205

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

205

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

205

Component Inspection (Fuel Temperature Sen-
sor) ........................................................................

206

P018C FUEL PRESSURE SENSOR ................

207

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

207

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

207

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

209

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

209

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

209

P0200 FUEL INJECTOR ..................................

211

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

211

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

211

Component Inspection (Fuel Injector) ...................

212

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

213

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

213

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

214

Component Inspection (Fuel Injector) ...................

214

P0217 ENGINE OVER TEMPERATURE .........

216

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

216

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

216

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

217

P0225 APP SENSOR .......................................

219

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

219

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

219

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Component Inspection (Accelerator Pedal Posi-
tion Sensor) ...........................................................

220

P0226 APP SENSOR .......................................

221

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

221

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

221

Component Inspection (Accelerator Pedal Posi-
tion Sensor) ...........................................................

222

P025A FUEL PUMP .........................................

223

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

223

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

223

P025B FUEL PUMP CONTROL MODULE
CONTROL ........................................................

225

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

225

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

225

P0263, P0266, P0269, P0272 COMBUSTION
DISORDER .......................................................

226

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

226

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

226

Component Inspection (Fuel Injector) ...................

227

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

229

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

229

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

229

Component Inspection (Crankshaft Position Sen-
sor) ........................................................................

230

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

231

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

231

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

231

Component Inspection (Camshaft Position Sen-
sor) ........................................................................

232

P0380 GLOW CONTROL SYSTEM .................

233

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

233

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

233

Component Inspection (Glow Plug) ......................

234

P0402 EGR VOLUME CONTROL VALVE .......

235

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

235

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

235

Component Inspection (EGR Volume Control
Valve Motor) ..........................................................

236

P0403 EGR VOLUME CONTROL VALVE .......

238

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

238

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

238

Component Inspection (EGR Volume Control
Valve Motor) ..........................................................

239

P0409 EGR VOLUME CONTROL VALVE PO-
SITION SENSOR ..............................................

240

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

240

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

240

Component Inspection (EGR Volume Control
Valve Motor) ..........................................................

241

P0470 EXHAUST GAS PRESSURE SENSOR

..

243

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

243

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

243

Component Inspection (Exhaust Gas Pressure
Sensor) ..................................................................

244

P0471 EXHAUST GAS PRESSURE SENSOR
1 .......................................................................

245

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

245

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

245

Component Inspection (Exhaust Gas Pressure
Sensor 1) ...............................................................

246

P0487 EGR VOLUME CONTROL VALVE .....

247

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

247

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

247

Component Inspection (EGR Volume Control
Valve Motor) ..........................................................

248

P0488 EGR SYSTEM ......................................

250

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

250

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

250

Component Inspection (EGR Volume Control
Valve Motor) ..........................................................

251

P0504 STOP LAMP SWITCH .........................

253

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

253

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

253

Component Inspection (Brake Pedal Position
Switch) ...................................................................

254

P0525 ASCD SYSTEM ...................................

256

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

256

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

256

P0530 REFRIGERANT PRESSURE SENSOR

.

257

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

257

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

257

P0544 EGT SENSOR 1 ...................................

259

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

259

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

259

Component Inspection (Exhaust Gas Tempera-
ture Sensor 1) ........................................................

260

P0560 BATTERY VOLTAGE ..........................

261

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

261

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

261

P0564 ASCD STEERING SWITCH .................

263

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

263

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

263

Component Inspection (ASCD Steering Switch) ...

264

P0574 VSS ......................................................

265

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

265

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

265

P0575 ASCD STEERING SWITCH .................

266

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

266

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

266

ECK-6

Component Inspection (ASCD Steering Switch) ...

267

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

268

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

268

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

268

P060A ECM .....................................................

269

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

269

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

269

P060B ECM .....................................................

270

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

270

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

270

P061A ECM .....................................................

271

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

271

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

271

P0627 FUEL PUMP .........................................

272

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

272

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

272

P062B ECM .....................................................

274

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

274

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

274

P0638 ELECTRIC THROTTLE CONTROL
ACTUATOR FUNCTION ..................................

275

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

275

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

275

P0641 SENSOR POWER SUPPLY .................

277

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

277

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

277

P0651 SENSOR POWER SUPPLY .................

280

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

280

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

280

P0657 ECM RELAY .........................................

282

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

282

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

282

P0697 SENSOR POWER SUPPLY .................

284

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

284

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

284

P0806 CLUTCH SWITCH ................................

286

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

286

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

286

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

286

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

287

Component Inspection (Clutch Interlock Switch) ...

289

Component Inspection (Clutch Pedal Position
Switch) ...................................................................

289

P0833 CPP SWITCH .......................................

291

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

291

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

291

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

292

Component Inspection (Clutch Pedal Position
Switch) ...................................................................

292

P1453 DIESEL PARTICULATE FILTER
PRESSURE SENSOR ......................................

294

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

294

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

294

Component Inspection (DPF Differential Pressure
Sensor) .................................................................

295

P1480 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................

296

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

296

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

296

Component Inspection (Exhaust Throttle Control
Motor) ....................................................................

297

P1481 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................

299

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

299

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

299

Component Inspection (Exhaust Throttle Control
Motor) ....................................................................

300

P1482 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................

302

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

302

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

302

Component Inspection (Exhaust Throttle Position
Sensor) .................................................................

303

P1483 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................

304

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

304

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

304

Component Inspection (Exhaust Throttle Position
Sensor) .................................................................

305

P1484 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................

306

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

306

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

306

Component Inspection (Low Pressure EGR Vol-
ume Control Valve Motor) .....................................

307

P1485 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................

308

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

308

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

308

Component Inspection (Low Pressure EGR Vol-
ume Control Valve Motor) .....................................

309

P1486 LOW PRESSURE EGR VOLUME
CONTROL VALVE POSITION SENSOR .........

310

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

310

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

310

Component Inspection (Low Pressure EGR Vol-
ume Control Valve Motor) .....................................

311

P1487 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................

312

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

312

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

312

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Component Inspection (Low Pressure EGR Vol-
ume Control Valve Motor) .....................................

313

P1488 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................

314

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

314

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

314

Component Inspection (Low Pressure EGR Vol-
ume Control Valve Motor) .....................................

315

P1489 LOW PRESSURE EGR VOLUME
CONTROL VALVE UPSTREAM TEMPERA-
TURE SENSOR ................................................

316

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

316

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

316

Component Inspection (Low Pressure EGR Vol-
ume Control Valve Motor) .....................................

317

P1503 ACTIVE GRILLE SHUTTER .................

318

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

318

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

318

P1512 STARTER MOTOR ...............................

321

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

321

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

321

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

321

P1516 HIGH PRESSURE FUEL PUMP SYS-
TEM ..................................................................

322

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

322

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

322

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

322

P1525 ASCD SYSTEM .....................................

323

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

323

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

323

P1544 EGT SENSOR 2 ....................................

324

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

324

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

324

Component Inspection (Exhaust Gas Tempera-
ture Sensor 2) .......................................................

326

P1546 EXHAUST GAS TEMPERATURE ........

327

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

327

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

327

P1589 NEUTRAL SWITCH ..............................

328

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

328

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

328

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

329

P158A CLUTCH SWITCH ................................

331

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

331

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

331

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

331

Component Inspection (Clutch Pedal Position
Switch) ..................................................................

332

P160C ECM ......................................................

334

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

334

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

334

P1641 THERMOPLUNGER CONTROL UNIT .

336

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

336

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

336

Component Inspection (Thermoplunger) ...............

338

P1642 THERMOPLUNGER CONTROL UNIT .

339

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

339

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

339

Component Inspection (Thermoplunger) ...............

341

P1643 THERMOPLUNGER CONTROL UNIT .

342

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

342

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

342

Component Inspection (Thermoplunger) ...............

344

P1650 STARTER MOTOR RELAY 2 ..............

345

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

345

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

345

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

347

P1655 ENGINE RESTART BYPASS RELAY .

348

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

348

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

348

Component Inspection (Engine Restart Bypass
Control Relay) ........................................................

350

Component Inspection (Engine Restart Bypass
Relay) ....................................................................

350

P1656 ENGINE RESTART BYPASS RELAY .

352

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

352

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

352

Component Inspection (Engine Restart Bypass
Control Relay) ........................................................

354

Component Inspection (Engine Restart Bypass
Relay) ....................................................................

354

P1675 ENGINE COOLANT TEMPERATURE .

356

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

356

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

356

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

357

P2002 DIESEL PARTICULATE FILTER ........

359

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

359

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

359

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

359

P2080 EGT SENSOR 1 ...................................

361

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

361

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

361

P2100 THROTTLE CONTROL MOTOR RE-
LAY ..................................................................

362

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

362

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

362

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

363

P2119 ELECTRIC THROTTLE CONTROL
FUNCTION ......................................................

364

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

364

ECK-8

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

364

P2120 APP SENSOR ......................................

365

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

365

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

365

Component Inspection (Accelerator Pedal Posi-
tion Sensor) ...........................................................

366

P2226 BARO SENSOR ...................................

367

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

367

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

367

P2263 TC SYSTEM .........................................

368

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

368

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

368

P2264 WATER IN FUEL SENSOR ..................

370

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

370

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

370

P2452 DIESEL PARTICULATE FILTER
PRESSURE SENSOR .....................................

372

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

372

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

372

P2504 CHARGING SYSTEM VOLTAGE ........

374

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

374

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

374

P253F ENGINE OIL DETERIORATED ............

375

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

375

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

375

P2688 FUEL HEATER .....................................

376

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

376

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

376

Component Inspection (Fuel Heater Relay) ..........

377

LOW PRESSURE FUEL PUMP ......................

379

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

379

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

379

Component Inspection (Low Pressure Fuel Pump)

..

380

STOP LAMP SWITCH .....................................

381

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

381

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

381

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

382

HOOD SWITCH ...............................................

383

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

383

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

383

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

384

STOP/START OFF SWITCH ...........................

385

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

385

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

385

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

386

SYMPTOM DIAGNOSIS ...........................

388

ENGINE CONTROL SYSTEM SYMPTOMS ....

388

Symptom Table .....................................................

388

STOP/START SYSTEM ....................................

394

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

394

STOP/START SYSTEM NOT ACTIVATED .....

395

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

395

PERIODIC MAINTENANCE ......................

397

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

397

Inspection ..............................................................

397

REMOVAL AND INSTALLATION .............

398

VACUUM LINES ...............................................

398

Vacuum Layout .....................................................

398

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

399

Exploded View ......................................................

399

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

399

GLOW CONTROL UNIT ...................................

400

Exploded View ......................................................

400

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

400

THERMOPLUNGER CONTROL UNIT .............

401

Exploded View ......................................................

401

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

401

DC/DC CONVERTER .......................................

402

Exploded View ......................................................

402

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

402

ENGINE RESTART BYPASS RELAY .............

403

Exploded View ......................................................

403

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

403

FUEL PUMP CONTROL MODULE (FPCM) ....

404

Exploded View ......................................................

404

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

404

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

405

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

405

Idle Speed .............................................................

405

PRECAUTIONS

ECK-9

< PRECAUTION >

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PRECAUTION

PRECAUTIONS

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

INFOID:0000000010505754

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Procedure without Cowl Top Cover

INFOID:0000000010289577

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.

Precautions for Removing Battery Terminal

INFOID:0000000010505757

• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key

or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.

PIIB3706J

ECK-10

< PRECAUTION >

[K9K]

PRECAUTIONS

• When disconnecting the 12V battery terminal, turn off the ACC

power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.

• For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.

• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

HOW TO DISCONNECT 12V BATTERY TERMINAL

Disconnect 12V battery terminal according to Instruction 1 or Instruction 2 described below.
For vehicles parked by ignition switch OFF, refer to Instruction 2.

INSTRUCTION 1

1.

Open the hood.

2.

Turn key switch to the OFF position with the driver side door opened.

3.

Get out of the vehicle and close the driver side door.

4.

Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

5.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)

1.

Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.

2.

Open the driver side door.

3.

Open the hood.

4.

Close the driver side door.

5.

Wait at least 3 minutes.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

6.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

Precaution for Stop/Start System Service

INFOID:0000000010289579

CAUTION:

SEF289H

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

PRECAUTIONS

ECK-11

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When performing an inspection and its related work with the engine at idle, always turn the stop/start
OFF switch ON or open the hood to release the stop/start system.

On Board Diagnostic (OBD) System of Engine

INFOID:0000000010289581

The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.

CAUTION:

• Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair

or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.

• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will

cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

• Certain systems and components, especially those related to OBD, may use a new style slide-lock-

ing type harness connector. For description and how to disconnect, refer to

PG-5, "Harness Connec-

tor"

.

• Be sure to route and secure the harnesses properly after work. The interference of the harness with

a bracket, etc. may cause the MI to light up due to the short circuit.

• Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube

may cause the MI to light up due to the malfunction of the fuel injection system, etc.

• Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before

returning the vehicle to the customer.

ECK-12

< SYSTEM DESCRIPTION >

[K9K]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000010289582

ENGINE ROOM COMPARTMENT

Battery mounting bracket assembly

JSBIA4845ZZ

No.

Component parts

Function

1

IPDM E/R

IPDM E/R activates the internal control circuit to perform the
relay ON-OFF control according to the input signals from vari-
ous sensors and the request signals received from control
units via CAN communication.
Refer to

PCS-5, "Component Parts Location"

for detailed in-

stallation location.

2

Mass air flow (MAF) sensor (with intake air temperature sen-
sor 1)

ECK-16, "Mass Air Flow Sensor"

ECK-16, "Intake Air Temperature Sensor 1"

3

Fuel heater and water in fuel level sensor

ECK-23, "Fuel Heater With Water In Fuel Level Sensor"

4

Fuel pressure sensor

ECK-18, "Fuel Pressure Sensor"

COMPONENT PARTS

ECK-13

< SYSTEM DESCRIPTION >

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ENGINE COMPARTMENT

5

Alternator

CHG-6, "Alternator"

6

Hood switch

ECK-23, "Hood Switch"

7

Reverse / neutral position switch

It detects that the transmission is in reverse and neutral.

8

ECM

ECK-16, "ECM"

9

Engine restart bypass relay

ECK-22, "Engine Restart Bypass Relay"

No.

Component parts

Function

JSBIA4977ZZ

No.

Component parts

Function

1

Fuel injector

ECK-17, "Fuel Injector"

2

Exhaust gas pressure sensor

ECK-20, "Exhaust Gas Pressure Sensor"

3

Glow plug

ECK-20, "Glow Plug"

4

High pressure fuel pump

ECK-17, "High Pressure Fuel Pump"

5

Fuel flow actuator

ECK-17, "High Pressure Fuel Pump"

6

Fuel temperature sensor

ECK-18, "Fuel Temperature Sensor"

7

Fuel rail pressure (FRP) sensor

ECK-18, "Fuel Rail Pressure Sensor"

8

Camshaft position (CMP) sensor

ECK-16, "Camshaft Position Sensor"

9

Electric throttle control actuator

ECK-19, "Electric Throttle Control Actuator"

10

Turbocharger boost control solenoid valve

ECK-18, "Turbocharger Boost Control Solenoid Valve"

11

High pressure EGR volume control valve

ECK-18, "High Pressure EGR Volume Control Valve"

12

Turbocharger boost sensor [with intake air temperature (IAT)
sensor 2]

ECK-17, "Turbocharger Boost Sensor"
ECK-17, "Intake Air Temperature Sensor 2"

13

Engine coolant temperature sensor

ECK-17, "Engine Coolant Temperature Sensor"

14

Low pressure EGR temperature sensor

ECK-19, "Low Pressure EGR Temperature Sensor"

15

Crankshaft position sensor

ECK-16, "Crankshaft Position Sensor"

16

Low pressure EGR volume control valve

ECK-18, "Low Pressure EGR Volume Control Valve"

17

DPF (diesel particulate filter) differential pressure sensor

ECK-20, "DPF Differential Pressure Sensor"

18

Exhaust gas temperature (EGT) sensor 2

ECK-20, "Exhaust Gas Temperature Sensor 2"

19

Exhaust gas temperature (EGT) sensor 1

ECK-20, "Exhaust Gas Temperature Sensor 1"

ECK-14

< SYSTEM DESCRIPTION >

[K9K]

COMPONENT PARTS

EXHAUST COMPARTMENT

BODY COMPARTMENT

JSBIA4847ZZ

No.

Component parts

Function

1

Exhaust electric throttle control actuator

ECK-19, "Exhaust Electric Throttle Control Actuator"

COMPONENT PARTS

ECK-15

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JSBIA4848ZZ

Behind luggage side finisher RH

Radiator assembly

Behind front fender protector LH

Instrument lower panel

Periphery of pedals

Behind of glove upper box assembly

No.

Component parts

Function

1

Refrigerant pressure sensor

ECK-21, "Refrigerant Pressure Sensor"

2

Active grille shutter

3

Fuel pump

ECK-18, "Fuel Pump"

4

ASCD steering switch

ECK-22, "ASCD Steering Switch"

5

Combination meter

MWI-7, "Component Description"

6

Fuel pump control module (FPCM)

ECK-17, "FPCM (Fuel Pump Control Module)"

7

Cooling fan resistor

ECK-21, "Cooling Fan Resistor"

8

Cooling fan

ECK-21, "Cooling Fan"

9

Thermoplunger control unit

ECK-21, "Thermoplunger Control Unit"

10

Thermoplunger

ECK-21, "Thermoplunger Unit"

11

Glow control unit

ECK-20, "Glow Control Unit"

12

Relay box

13

Fuse block (J/B)

ECK-16

< SYSTEM DESCRIPTION >

[K9K]

COMPONENT PARTS

ECM

INFOID:0000000010289584

The ECM consists of a microcomputer and connectors for signal input and output and for power supply. The
ECM controls the engine.

Camshaft Position Sensor

INFOID:0000000010289585

The camshaft position (CMP) sensor senses the retraction with camshaft to identify a particular cylinder. The
camshaft position (CMP) sensor senses the piston position. When the crankshaft position (CKP) sensor sys-
tem becomes inoperative, the camshaft position (CMP) sensor provides various controls of engine parts
instead, utilizing timing of cylinder identification signals. The sensor consists of a permanent magnet and Hall
IC.

Crankshaft Position Sensor

INFOID:0000000010289586

Crankshaft position (CKP) sensor detects engine speed and crank-
shaft position. The size difference of gear tooth placed on signal
plate changes the gap between signal plate and sensor, and mag-
netic field change around the sensor induces sensor output voltage
change. ECM detects engine speed and crankshaft position based
on this voltage change.

Mass Air Flow Sensor

INFOID:0000000010289587

The mass air flow sensor (1) is installed in the passage of intake air
and measures the intake flow rate. The mass air flow sensor controls
the temperature of the hot wire to a certain amount. The heat gener-
ated by the hot wire is reduced as the intake air flows around it. The
greater air flow, the greater the heat loss.
Therefore, the electric current supplied to hot wire is changed to
maintain the temperature of the hot wire as air flow increases. The
ECM detects the air flow by means of this current change.

Intake Air Temperature Sensor 1

INFOID:0000000010289588

The intake air temperature (IAT) sensor 1 is built-into the mass air flow sensor. The sensor detects intake air
temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the rise in temperature.

14

Stop/start OFF switch

ECK-23, "Stop/Start OFF Switch"

15

Clutch interlock switch

ECK-21, "Clutch Interlock Switch & Clutch Pedal Position
Switch"

16

Clutch pedal position switch

ECK-21, "Clutch Interlock Switch & Clutch Pedal Position
Switch"

17

Accelerator pedal position sensor

ECK-21, "Accelerator Pedal Position Sensor"

18

Stop lamp switch

ECK-21, "Stop Lamp Switch"

19

DC/DC converter

ECK-22, "DC/DC Converter"

No.

Component parts

Function

JSBIA0442ZZ

MBIB1523E

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