Nissan Rogue. Instruction — part 1151

STC-34

< SYMPTOM DIAGNOSIS >

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIA-
TION)

Description

INFOID:0000000011279673

Unbalance steering wheel turning force (torque variation).

Diagnosis Procedure

INFOID:0000000011279674

1.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Turn the ignition switch OFF to ON.

2. Perform “Self Diagnostic Result” for “EPS”.
Is any DTC detected?

YES

>> Check the DTC. Refer to

STC-13, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK THE ILLUMINATION OF THE EPS WARNING LAMP

Check the EPS warning lamp while the engine is started.
Does the EPS warning lamp turn OFF?

YES

>> GO TO 3.

NO

>> Refer to

STC-28, "Diagnosis Procedure"

.

3.

CHECK STEERING COLUMN AND STEERING GEAR

Check the steering column assembly and steering gear assembly.

• Steering column assembly. Refer to

ST-8, "Inspection"

.

• Steering gear assembly. Refer to

ST-9, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the specific malfunctioning part.

4.

CHECK EPS CONTROL UNIT SIGNAL (1)

With CONSULT

1. Start the engine.

CAUTION:

Never drive the vehicle.

2. Turn steering wheel from full left stop to full right stop.

3. Select “ASSIST LEVEL” in “Data Monitor” of “EPS”.
Does the item in “Data Monitor” maintain “100%”?

YES

>> GO TO 7.

NO

>> GO TO 5.

5.

CHECK EPS CONTROL UNIT SIGNAL (2)

With CONSULT

Select “BATTERY VOLT” in “Data Monitor” of “EPS”.
Does the item in “Data Monitor” indicate “10.5 V” or more?

YES

>> GO TO 6.

NO

>> Perform trouble diagnosis of EPS control unit power supply and ground. Refer to

STC-20, "Diag-

nosis Procedure"

.

6.

CHECK EPS CONTROL UNIT SIGNAL (3)

With CONSULT

1. Select “ASSIST LEVEL” in “Data Monitor” of “EPS”.

2. Stop the EPS system until the item in “Data Monitor” becomes “100%” or less.

NOTE:

While stopping the EPS system, do not turn steering wheel.

3. Check that the symptom continues.

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)

STC-35

< SYMPTOM DIAGNOSIS >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

Does the symptom continue?

YES

>> GO TO 7.

NO

>> The assist torque decreases because of protection function. This is not malfunction. Inspection

End.

7.

CHECK EPS CONTROL UNIT SIGNAL (4)

With CONSULT

1. Start the engine.

CAUTION:

Never drive the vehicle.

2. Turn steering wheel from full left stop to full right stop.

3. Select “TORQUE SENSOR” in “Data Monitor” of “EPS”.

4. Perform the torque sensor inspection.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

CHECK EPS MOTOR

Perform the trouble diagnosis of EPS motor. Refer to

STC-24, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace the specific malfunctioning part.

9.

CHECK STEERING WHEEL TURNING FORCE

Check the steering wheel turning force. Refer to

ST-6, "Inspection"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Check the steering wheel turning force for mechanical malfunction. Refer to

ST-6, "Inspection"

.

Monitor item

Condition

Display value

TORQUE SENSOR

Steering wheel: Not steering (There is no
steering force)

Approx. 0 Nm

Steering wheel: Right turn

Positive value (Nm)

Steering wheel: Left turn

Negative value (Nm)

STC-36

< REMOVAL AND INSTALLATION >

EPS CONTROL UNIT

REMOVAL AND INSTALLATION

EPS CONTROL UNIT

Removal and Installation

INFOID:0000000011279675

CAUTION:

Disconnect the battery negative terminal before removing the EPS control unit.

The EPS control unit is an integral part of the steering column. If the replacement of the EPS control unit is

necessary, replace the steering column. Refer to

ST-12, "Removal and Installation"

.

STR-1

ENGINE

C

D

E

F

G

H

I

J

K

L

M

SECTION

STR

A

STR

N

O

P

CONTENTS

STARTING SYSTEM

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

2

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

2

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

2

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

3

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

3

Special Service Tools . . . . . . . . . . . ....

3

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

3

SYSTEM DESCRIPTION . . . . . . . ..

4

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

4

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

4

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

6

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

6

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

7

STARTING SYSTEM . . . . . . . . . . ...

7

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

7

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

11

DIAGNOSIS AND REPAIR WORKFLOW . . .

11

Work Flow (With GR8-1200 NI) . . . . . . . ..

11

Work Flow (Without GR8-1200 NI) . . . . . . ..

15

DTC/CIRCUIT DIAGNOSIS . . . . . . .

17

B TERMINAL CIRCUIT . . . . . . . . . .

17

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

17

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

17

S CONNECTOR CIRCUIT . . . . . . . . .

19

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

19

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

19

SYMPTOM DIAGNOSIS . . . . . . . ..

20

STARTING SYSTEM . . . . . . . . . . .

20

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

20

REMOVAL AND INSTALLATION . . . ...

21

STARTER MOTOR . . . . . . . . . . ...

21

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

21

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

21

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

22

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

22

Starter Motor . . . . . . . . . . . . . . ...

22