Nissan Qashqai J11. Manual — part 985

SERVICE DATA AND SPECIFICATIONS (SDS)

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Steering Gear

INFOID:0000000010438978

STEERING OUTER SOCKET AND INNER SOCKET

INNER AND OUTER SOCKET LENGTH

RACK SLIDING FORCE

Outer socket

Rocking torque

0.3 - 2.9 N·m (0.03 - 0.29 kg-m, 3.0 - 25 in-lb)

Rotating torque

0.3 - 2.0 N·m (0.03 - 0.2 kg-m, 3.0 - 18 in-lb)

Axial end play

0.4 mm (0.020 in) or less

Inner socket

Rocking torque

7.8 - 16.7 N·m (0.80 - 1.7 kg-m, 69 - 148 in-lb)

Axial end play

0.2 mm (0.008 in) or less

Inner and outer socket
length

A

13 mm (0.51 in)

B

362.1 mm (14.2 in)

AWGIA0321ZZ

Rack sliding force

115 - 175 N-f (11.7 - 17.9 kg-f, 25.9 - 39.3 lb-f)

STC-1

STEERING

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SECTION

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CONTENTS

STEERING CONTROL SYSTEM

HOW TO USE THIS MANUAL . . . . . ..

3

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

3

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

3

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

4

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

4

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

4

Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....

4

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

5

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

5

Service Notice and Precautions for EPS System . ..

6

SYSTEM DESCRIPTION . . . . . . . ..

7

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

7

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

7

EPS Control Unit . . . . . . . . . . . . . ...

9

EPS Motor, Torque Sensor, Reduction Gear . . ..

10

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

11

EPS SYSTEM . . . . . . . . . . . . . . .

11

EPS SYSTEM : System Description . . . . . ...

11

EPS SYSTEM : Fail-safe . . . . . . . . . .

12

EPS SYSTEM : Protection Function . . . . . ...

13

DIAGNOSIS SYSTEM (EPS CONTROL UNIT)

.

14

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

14

ECU DIAGNOSIS INFORMATION . . . ..

16

EPS CONTROL UNIT . . . . . . . . . . .

16

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

16

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

18

Protection Function . . . . . . . . . . . . .

18

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

18

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

19

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

20

EPS SYSTEM . . . . . . . . . . . . .

20

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

20

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

22

DIAGNOSIS AND REPAIR WORK FLOW . ...

22

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

22

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

23

DTC/CIRCUIT DIAGNOSIS . . . . . . .

25

C1601 BATTERY POWER SUPPLY . . . .

25

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

25

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

25

C1604 TORQUE SENSOR . . . . . . . .

28

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

28

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

28

C1606 EPS MOTOR . . . . . . . . . . ..

29

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

29

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

29

C1607, C1608 EPS CONTROL UNIT . . . ...

30

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

30

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

30

C1609 VEHICLE SPEED SIGNAL . . . . .

31

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

31

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

31

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

32

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

32

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

32

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

33

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

33

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

33

STC-2

U1970 AROUND VIEW MONITOR SYSTEM .

34

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

34

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

34

POWER SUPPLY AND GROUND CIRCUIT . .

36

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

36

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

36

POWER STEERING WARNING LAMP . . . .

38

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

38

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

38

SYMPTOM DIAGNOSIS . . . . . . . .

39

POWER STEERING WARNING LAMP DOSE
NOT TURN ON . . . . . . . . . . . . ..

39

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

39

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

39

POWER STEERING WARNING LAMP DOSE
NOT TURN OFF . . . . . . . . . . . . .

40

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

40

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

40

STEERING WHEEL TURNING FORCE IS
HEAVY OR LIGHT . . . . . . . . . . . .

41

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

41

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

41

UNBALANCE STEERING WHEEL TURNING
FORCE AND RETURN BETWEEN RIGHT
AND LEFT . . . . . . . . . . . . . . .

43

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

43

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

43

UNBALANCE STEERING WHEEL TURNING
FORCE (TORQUE VARIATION) . . . . . ...

44

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

44

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

44

REMOVAL AND INSTALLATION . . . ..

46

EPS CONTROL UNIT . . . . . . . . . .

46

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

46

HOW TO USE THIS SECTION

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< HOW TO USE THIS MANUAL >

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HOW TO USE THIS MANUAL

HOW TO USE THIS SECTION

Information

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• Both “VDC” and “ESP” are used in this manual. These indicate the same system.
• In this manual, “Idling Stop System” is referred to as “Stop / Start System”.