Nissan Sentra. Manual - part 823

ST-18

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Steering Wheel

INFOID:0000000009759144

Steering Angle

INFOID:0000000009759145

Unit: Degree minute (Decimal Degree)

Steering Column

INFOID:0000000009759146

STEERING COLUMN LENGTH

Unit: mm (in)

TILT MECHANISM OPERATING RANGE

Steering wheel axial end play

0 mm (0 in)

Steering wheel play

0 - 35 mm (0 - 1.38 in)

Steering wheel turning force

36 N (3.7 kg-f, 8.09 lb-f) or less

Inner wheel angle (A)

Minimum

36

° 30′ (36.5°)

Nominal

39

° 30′ (39.5°)

Maximum

40

° 30′ (40.5°)

Outer wheel angle (B)

Nominal

33

° 30′ (33.5°)

SGIA0055E

Steering column length

Length (L)

463 (18.2)

Telescopic maximum

478 (18.8)

Telescopic minimum

448 (17.6)

AWGIA0251ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

ST-19

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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Unit: mm (in)

Power Steering Gear

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STEERING OUTER SOCKET AND INNER SOCKET

RACK STROKE

Tilt mechanism operating range (A)

40 (1.6)

Telescopic mechanism operating range (B)

30 (1.2)

JSGIA1084ZZ

Outer socket

Rocking torque

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

• Measurement on spring balance
• Measuring point: cotter pin hole of stud

6.0 - 58 N (0.61 - 5.9 kg, 1.3 - 13 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

0.5 - 5.0 N·m (0.05 - 0.51 kg-m, 4.4 - 44 in-lb)

• Measurement on spring balance
• Measuring point at * mark shown

4.3 - 43.1 N (0.44 - 4.40 kg, 0.97 - 9.69 lb)

Axial end play

0.2 mm (0.008 in) or less

Inner socket length (L)

197 mm (7.8 in) or less

SGIA0167E

Rack stroke in neutral position (L)

73.0 mm (2.9 in)

AWGIA0003GB

STC-1

STEERING

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SECTION 

STC

A

B

STC

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CONTENTS

STEERING CONTROL SYSTEM

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

3

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

3

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

3

Service Notice and Precautions for EPS System ......

3

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

4

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

4

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

4

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

5

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

5

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

5

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

6

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

6

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

6

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

8

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

8

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

8

EPS SYSTEM : Fail-Safe ..........................................

9

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

9

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

9

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

9

DIAGNOSIS SYSTEM (EPS CONTROL UNIT) 

....

10

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

10

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

12

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

12

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

12

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

13

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

13

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

14

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

14

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

15

POWER STEERING CONTROL SYSTEM  .......

15

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

15

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

19

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

19

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

19

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

20

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

22

C1601 BATTERY POWER SUPPLY  ................

22

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

22

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

22

C1604 TORQUE SENSOR ................................

25

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

25

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

25

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

27

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

27

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

27

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

28

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

28

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

28

C1609 VEHICLE SPEED SIGNAL ....................

29

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

29

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

29

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

30

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

30

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

30

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

30

EPS WARNING LAMP ......................................

31

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

31

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

31

STC-2

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

32

EPS WARNING LAMP DOES NOT TURN ON ...

32

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

32

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

32

EPS WARNING LAMP DOES NOT TURN 
OFF ....................................................................

33

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

33

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

33

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

34

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

34

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

34

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

36

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

36

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

36

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

37

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

37

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

37

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

39

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

39

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

39

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

39