Nissan Leaf. Manual - part 170

 

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Nissan Leaf. Manual - part 170

 

 

BR-1

BRAKES

C

D

E

G

H

I

J

K

L

M

SECTION 

BR

A

B

BR

N

O

P

CONTENTS

BRAKE SYSTEM

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

5

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

5

Precaution for Technicians Using Medical Electric 

......

5

Point to Be Checked Before Starting Maintenance 
Work ........................................................................
..

5

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

5

Precaution for Removing 12V Battery .......................

6

Precaution for Procedure without Cowl Top Cover ......

6

Precaution for Brake System  ....................................

7

Precaution for Harness Repair ..................................

8

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

9

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

9

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

9

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

9

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

10

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

10

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

10

Electrically-driven Intelligent Brake Unit ..................

12

Stroke Sensor  .........................................................

13

Warning Buzzer .......................................................

13

Brake Power Supply Backup Unit  ...........................

13

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

14

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

14

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

16

COOPERATIVE REGENERATIVE BRAKE FUNC-
TION ...........................................................................

18

COOPERATIVE REGENERATIVE BRAKE 
FUNCTION : System Description ............................

18

HILL START ASSIST FUNCTION .............................

22

hill start assist FUNCTION : System Description ....

22

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

24

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

24

WARNING/INDICATOR/CHIME LIST : Brake 
System Warning Lamp (Yellow) ..............................

24

WARNING/INDICATOR/CHIME LIST : Brake 
Warning Lamp (Red)  ...............................................

26

DIAGNOSIS SYSTEM (ELECTRICALLY-
DRIVEN INTELLIGENT BRAKE UNIT)  ............

29

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

29

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

33

ELECTRICALLY-DRIVEN INTELLIGENT 
BRAKE UNIT .....................................................

33

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

33

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

35

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

37

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

38

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

40

BRAKE SYSTEM  ..............................................

40

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

40

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

49

DIAGNOSIS AND REPAIR WORK FLOW  .......

49

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

49

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

50

ADDITIONAL SERVICE WHEN REPLACING 
ELECTRICALLY-DRIVEN INTELLIGENT 
BRAKE UNIT .....................................................

52

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

52

STROKE SENSOR 0 POINT LEARNING .........

53

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

53

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

53

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

56

BR-2

C1A60 CONTROL MODULE .............................

56

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

56

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

56

C1A61 MOTOR ..................................................

64

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

64

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

64

C1A62 CONTROL MODULE .............................

72

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

72

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

72

C1A63 BRAKE POWER SUPPLY BACKUP 
UNIT ...................................................................

81

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

81

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

82

C1A65 INCOMPLETE STROKE SENSOR  .......

90

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

90

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

90

C1A67 STOP LAMP SWITCH  .........................

102

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

102

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

102

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

112

C1A69 MOTOR ................................................

114

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

114

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

114

C1A6B BRAKE POWER SUPPLY BACKUP 
UNIT .................................................................

123

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

123

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

123

C1A6C BRAKE POWER SUPPLY BACKUP 
UNIT .................................................................

133

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

133

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

134

C1A6D BRAKE POWER SUPPLY BACKUP 
UNIT .................................................................

142

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

142

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

142

C1A6E EV SYSTEM  ........................................

150

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

150

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

150

C1A6F VCM SYSTEM .....................................

159

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

159

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

159

C1A70 BRAKE CONTROL SYSTEM ..............

168

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

168

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

168

C1A74 STEERING ANGLE SENSOR  .............

177

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

177

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

177

C1A80 CONTROL MODULE ...........................

185

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

185

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

185

C1A81 CONTROL MODULE ............................

193

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

193

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

193

C1A82 CONTROL MODULE ............................

201

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

201

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

201

C1A83 CONTROL MODULE ............................

209

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

209

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

209

C1A84 CONTROL MODULE ............................

217

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

217

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

217

C1A85 CONTROL MODULE ............................

225

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

225

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

226

C1A86 CONTROL MODULE ............................

233

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

233

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

234

C1A87 CONTROL MODULE ............................

241

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

241

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

241

C1A88 CONTROL MODULE ............................

249

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

249

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

249

C1A89 CONTROL MODULE ............................

257

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

257

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

257

C1A8A CONTROL MODULE  ...........................

265

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

265

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

265

C1A8B CONTROL MODULE  ...........................

273

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

273

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

273

C1A90 CONTROL MODULE ............................

281

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

281

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

281

C1A91 CONTROL MODULE ............................

290

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

290

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

290

C1A98 BRAKE POWER SUPPLY BACKUP 
UNIT ..................................................................

299

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

299

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

299

C1A99 BRAKE POWER SUPPLY BACKUP 
UNIT ..................................................................

308

BR-3

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

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

308

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

308

C1A9A BRAKE POWER SUPPLY BACKUP 
UNIT ..................................................................

317

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

317

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

317

C1AA0 STROKE SENSOR  ..............................

326

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

326

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

326

C1AA1 STROKE SENSOR  ..............................

338

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

338

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

338

C1AA2 STROKE SENSOR  ..............................

350

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

350

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

350

C1AA3 STROKE SENSOR  ..............................

362

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

362

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

362

C1AA9 PRESSURE SENSOR  .........................

374

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

374

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

374

C1AB8 MOTOR ................................................

384

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

384

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

385

C1AB9 MOTOR ................................................

393

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

393

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

393

C1ABA MOTOR  ...............................................

402

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

402

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

402

C1AC0 CONTROL MODULE ...........................

411

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

411

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

412

C1AC1 CONTROL MODULE ...........................

420

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

420

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

421

C1AC8 BRAKE POWER SUPPLY BACKUP 
UNIT ..................................................................

429

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

429

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

429

C1AD0 BRAKE POWER SUPPLY BACKUP 
UNIT ..................................................................

439

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

439

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

440

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

448

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

448

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

448

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

449

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

450

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

450

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

450

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

451

U1510 ABS ACTUATOR AND ELECTRIC 
UNIT (CONTROL UNIT) COMMUNICATION  .

452

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

452

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

452

U1511 BRAKE POWER SUPPLY BACKUP 
UNIT COMMUNICATION  ................................

460

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

460

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

460

POWER SUPPLY AND GROUND CIRCUIT  ..

470

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

470

WARNING BUZZER ........................................

474

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

474

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

474

BRAKE WARNING LAMP  ..............................

476

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

476

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

476

BRAKE SYSTEM WARNING LAMP  ..............

477

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

477

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

477

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

478

NOISE, VIBRATION AND HARSHNESS 
(NVH) TROUBLESHOOTING  .........................

478

NVH Troubleshooting Chart  ..................................

478

UNEXPECTED BRAKE PEDAL REACTION  .

479

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

479

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

479

THE BRAKING DISTANCE IS LONG .............

480

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

480

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

480

VEHICLE JERKS DURING  .............................

487

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

487

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

487

NORMAL OPERATING CONDITION  .............

489

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

489

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

490

BRAKE PEDAL ...............................................

490

Inspection and Adjustment  ....................................

490

BRAKE FLUID  ................................................

493

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

493

Draining .................................................................

493

Refilling ..................................................................

493

Bleeding Brake System  .........................................

494

BR-4

ELECTRICALLY-DRIVEN INTELLIGENT 
BRAKE UNIT  ...................................................

495

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

495

FRONT DISC BRAKE ......................................

496

BRAKE PAD  ............................................................

496

BRAKE PAD : Inspection and Adjustment .............

496

DISC ROTOR  ...........................................................

496

DISC ROTOR : Inspection and Adjustment ...........

496

REAR DISC BRAKE ........................................

498

BRAKE PAD  ............................................................

498

BRAKE PAD : Inspection and Adjustment .............

498

DISC ROTOR  ...........................................................

498

DISC ROTOR : Inspection and Adjustment ...........

498

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

500

BRAKE PEDAL  ...............................................

500

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

500

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

500

Inspection and Adjustment  ....................................

501

BRAKE PIPING  ...............................................

503

FRONT .....................................................................

503

FRONT : Exploded View  .......................................

503

FRONT : Hydraulic Piping  .....................................

504

FRONT : Removal and Installation  ........................

504

FRONT : Inspection ...............................................

506

REAR ........................................................................

506

REAR : Exploded View ..........................................

506

REAR : Hydraulic Piping ........................................

507

REAR : Removal and Installation  ..........................

507

REAR : Inspection  .................................................

509

ELECTRICALLY-DRIVEN INTELLIGENT 
BRAKE UNIT  ...................................................

510

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

510

Removal and installation  .......................................

510

Inspection and Adjustment  ....................................

512

BRAKE POWER SUPPLY BACKUP UNIT .....

513

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

513

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

513

WARNING BUZZER  .........................................

515

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

515

FRONT DISC BRAKE  ......................................

516

BRAKE PAD ............................................................

516

BRAKE PAD : Exploded View ...............................

516

BRAKE PAD : Removal and Installation  ...............

516

BRAKE PAD : Inspection  ......................................

517

BRAKE CALIPER ASSEMBLY  ..............................

518

BRAKE CALIPER ASSEMBLY : Exploded View  ..

518

BRAKE CALIPER ASSEMBLY : Removal and In-
stallation ................................................................

518

BRAKE CALIPER ASSEMBLY : Disassembly and 
Assembly ..............................................................

520

BRAKE CALIPER ASSEMBLY : Inspection ..........

521

REAR DISC BRAKE .........................................

522

BRAKE PAD ............................................................

522

BRAKE PAD : Exploded View ...............................

522

BRAKE PAD : Removal and Installation  ...............

522

BRAKE PAD : Inspection  ......................................

524

BRAKE CALIPER ASSEMBLY  ..............................

524

BRAKE CALIPER ASSEMBLY : Exploded View  ..

525

BRAKE CALIPER ASSEMBLY : Removal and In-
stallation ................................................................

526

BRAKE CALIPER ASSEMBLY : Disassembly and 
Assembly ..............................................................

527

BRAKE CALIPER ASSEMBLY : Inspection ..........

529

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

530

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

530

General Specifications  ..........................................

530

Brake Pedal  ..........................................................

530

Electrically-driven Intelligent Brake  .......................

531

Front Disc Brake  ...................................................

531

Rear Disc Brake ....................................................

531

 

 

 

 

 

 

 

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