Nissan Qashqai J11. Manual - part 1092

 

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Nissan Qashqai J11. Manual - part 1092

 

 

HAC-4

PTC HEATER CONTROL SYSTEM ........................

156

PTC HEATER CONTROL SYSTEM : System De-
scription .................................................................

157

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

158

Switch Name and Function ....................................

158

DIAGNOSIS SYSTEM (A/C AMP.)  ..................

162

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

162

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

162

DIAGNOSIS SYSTEM (BCM)  ..........................

164

COMMON ITEM  .......................................................

164

COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM)  ...................................................

164

AIR CONDITIONER  .................................................

165

AIR CONDITIONER : CONSULT Function (BCM - 
AIR CONDITIONER)  .............................................

165

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

166

A/C AMP.  .........................................................

166

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

166

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

169

BCM, ECM, IPDM E/R  .....................................

170

List of ECU Reference  ...........................................

170

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

171

MANUAL AIR CONDITIONER SYSTEM .........

171

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

171

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

182

DIAGNOSIS AND REPAIR WORK FLOW  ......

182

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

182

OPERATION INSPECTION .............................

185

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

185

SYSTEM SETTING ..........................................

187

Setting of Target Evaporator Temperature Upper 
Limit Value  .............................................................

187

DOOR MOTOR STARTING POSITION RE-
SET ..................................................................

188

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

188

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

188

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

189

U1000 CAN COMM CIRCUIT  ..........................

189

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

189

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

189

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

189

U1010 CONTROL UNIT (CAN)  .......................

190

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

190

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

190

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

190

B24A4 INTAKE SENSOR  ................................

191

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

191

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

191

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

193

B24B7 INTAKE DOOR MOTOR  ......................

194

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

194

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

194

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

196

B24B9 MODE DOOR MOTOR  .........................

197

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

197

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

197

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

199

B24BB LEFT AIR MIX DOOR MOTOR ............

200

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

200

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

200

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

202

POWER SUPPLY AND GROUND CIRCUIT  ....

203

A/C AMP.  .................................................................

203

A/C AMP. : Diagnosis Procedure ..........................

203

BLOWER MOTOR ............................................

204

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

204

Component Inspection (Blower Motor)  .................

207

Component Inspection (Blower Relay)  .................

207

Component Inspection (Fan Control Amp.)  ..........

207

MAGNET CLUTCH  ...........................................

209

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

209

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

209

ECV (ELECTRICAL CONTROL VALVE)  .........

211

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

211

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

211

PTC HEATER  ...................................................

213

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

213

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

213

Component Inspection (PTC Relay)  .....................

214

Component Inspection (PTC Heater) ....................

215

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

216

MANUAL AIR CONDITIONING SYSTEM  ........

216

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

216

INSUFFICIENT COOLING ................................

218

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

218

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

218

INSUFFICIENT HEATING  ................................

219

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

219

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

219

COMPRESSOR DOES NOT OPERATE  ..........

221

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

221

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

221

HAC-5

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

222

A/C CONTROL (A/C AUTO AMP.)  ..................

222

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

222

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

222

AMBIENT SENSOR  .........................................

223

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

223

INTAKE SENSOR  ............................................

224

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

224

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

224

REFRIGERANT PRESSURE SENSOR  ...........

225

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

225

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

225

PTC HEATER  ...................................................

226

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

226

FAN CONTROL AMPLIFIER  ...........................

227

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

227

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

227

DOOR MOTOR .................................................

228

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

228

AIR MIX DOOR MOTOR  .........................................

229

AIR MIX DOOR MOTOR : Removal and Installa-
tion ........................................................................

229

INTAKE DOOR MOTOR ..........................................

230

INTAKE DOOR MOTOR : Removal and Installa-
tion ........................................................................

230

MODE DOOR MOTOR  ............................................

230

MODE DOOR MOTOR : Removal and Installation 

..

230

MANUAL HEATER 

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

231

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

231

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

231

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

231

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

233

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

233

MANUAL HEATER SYSTEM  ..................................

233

MANUAL HEATER SYSTEM : Component Parts 
Location .................................................................

233

PTC HEATER CONTROL SYSTEM ........................

234

PTC HEATER CONTROL SYSTEM : Component 
Parts Location  .......................................................

235

A/C UNIT ASSEMBLY .............................................

236

A/C UNIT ASSEMBLY : Air Mix Door Motor  .........

236

A/C UNIT ASSEMBLY : Mode Door Motor  ...........

236

A/C UNIT ASSEMBLY : Intake Door Motor ...........

237

A/C UNIT ASSEMBLY : Blower Motor ...................

237

A/C UNIT ASSEMBLY : Fan Control Amp. ............

238

A/C UNIT ASSEMBLY : PTC Heater .....................

238

Heater Control (A/C Amp.)  ....................................

238

Ambient Sensor  .....................................................

239

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

240

MANUAL HEATER SYSTEM  ..................................

240

MANUAL HEATER SYSTEM : System Descrip-
tion .........................................................................

240

MANUAL HEATER SYSTEM : Air Inlet Control  ....

240

MANUAL HEATER SYSTEM : Door Control .........

241

MANUAL HEATER SYSTEM : Door Motor Start-
ing Position Reset Control  .....................................

243

PTC HEATER CONTROL SYSTEM  ........................

243

PTC HEATER CONTROL SYSTEM : System De-
scription .................................................................

243

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

245

Switch Name and Function ....................................

245

DIAGNOSIS SYSTEM (A/C AMP.)  .................

246

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

246

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

246

DIAGNOSIS SYSTEM (BCM)  .........................

248

COMMON ITEM  .......................................................

248

COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM)  ...................................................

248

AIR CONDITIONER  .................................................

249

AIR CONDITIONER : CONSULT Function (BCM - 
AIR CONDITIONER)  .............................................

249

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

250

A/C AMP. .........................................................

250

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

250

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

252

BCM, ECM, IPDM E/R .....................................

253

List of ECU Reference ...........................................

253

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

254

MANUAL HEATER SYSTEM ..........................

254

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

254

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

261

DIAGNOSIS AND REPAIR WORK FLOW  .....

261

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

261

OPERATION INSPECTION  ............................

264

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

264

DOOR MOTOR STARTING POSITION RE-
SET ..................................................................

266

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

266

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

266

HAC-6

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

267

U1000 CAN COMM CIRCUIT  ..........................

267

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

267

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

267

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

267

U1010 CONTROL UNIT (CAN)  .......................

268

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

268

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

268

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

268

B24B7 INTAKE DOOR MOTOR ......................

269

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

269

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

269

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

271

B24B9 MODE DOOR MOTOR  ........................

272

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

272

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

272

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

274

B24BB LEFT AIR MIX DOOR MOTOR  ...........

275

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

275

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

275

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

277

POWER SUPPLY AND GROUND CIRCUIT  ...

278

A/C AMP. ..................................................................

278

A/C AMP. : Diagnosis Procedure  ..........................

278

BLOWER MOTOR  ...........................................

279

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

279

Component Inspection (Blower Motor)  ..................

282

Component Inspection (Blower Relay)  ..................

282

Component Inspection (Fan Control Amp.)  ...........

282

PTC HEATER  ..................................................

284

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

284

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

284

Component Inspection (PTC Relay)  .....................

285

Component Inspection (PTC Heater) ....................

286

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

287

MANUAL HEATER SYSTEM  ...........................

287

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

287

INSUFFICIENT HEATING  ................................

288

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

288

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

288

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

289

HEATER CONTROL (A/C AMP.)  .....................

289

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

289

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

289

AMBIENT SENSOR ..........................................

290

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

290

PTC HEATER  ...................................................

291

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

291

FAN CONTROL AMPLIFIER ............................

292

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

292

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

292

DOOR MOTOR  .................................................

293

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

293

AIR MIX DOOR MOTOR  .........................................

294

AIR MIX DOOR MOTOR : Removal and Installa-
tion ........................................................................

294

INTAKE DOOR MOTOR  .........................................

295

INTAKE DOOR MOTOR : Removal and Installa-
tion ........................................................................

295

MODE DOOR MOTOR  ............................................

295

MODE DOOR MOTOR : Removal and Installation .

295

PRECAUTIONS

HAC-7

< PRECAUTION >

[AUTOMATIC AIR CONDITIONING]

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PRECAUTION

PRECAUTIONS

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

INFOID:0000000010432151

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.

Precautions for Removing Battery Terminal

INFOID:0000000010521162

• 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.

• 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 described below.
1.

Open the hood.

2.

Turn ignition switch to the ON position.

3.

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

4.

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

SEF289H

 

 

 

 

 

 

 

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