Nissan Versa Note. Manual - part 763

 

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Nissan Versa Note. Manual - part 763

 

 

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

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

4

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

4

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

4

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

5

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

5

DIAGNOSIS SYSTEM (EPS CONTROL UNIT) 

.....

6

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

6

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

8

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

8

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

8

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

9

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

10

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

10

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

10

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

11

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

11

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

11

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

15

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

15

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

15

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

16

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

18

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

18

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

18

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

18

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

21

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

21

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

21

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

23

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

23

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

23

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

23

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

25

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

25

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

25

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

26

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

26

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

26

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

26

C1610 ENGINE STATUS SIGNAL  ...................

27

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

27

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

27

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

27

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

28

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

28

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

28

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

28

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

29

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

29

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

29

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

30

EPS WARNING LAMP DOES NOT TURN ON ...

30

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

30

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

30

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

31

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

31

PRECAUTIONS

STC-3

< PRECAUTION >

C

D

E

F

H

I

J

K

L

M

A

B

STC

N

O

P

PRECAUTION

PRECAUTIONS

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

INFOID:0000000009499763

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 SR and SB section of

this Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which 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 the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT 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 three minutes before performing any service.

Service Notice and Precautions for EPS System

INFOID:0000000008969726

• Check the following item when performing the trouble diagnosis:

- Check for possible causes of the malfunction by interviewing the customer as to what conditions were

present when the symptom occurred.

- Check if the steering wheel and the EPS control unit are genuine parts.

- Check if the air pressure and size of each tire is correct.

- Check if the installation of the links and suspension components are correct.

- Check if the tires are worn evenly, indicating the wheel alignment is correct.

- Check if the installation of the steering column and the steering gear are correct. Check for loose bolts, dam-

aged links, cracked boots and leaking grease, etc.

- Check for damage or modification to suspension or body resulting in increased weight or altered ground

clearance.

- Check if the battery voltage is proper.

- Check the EPS control unit harness to be sure the harness connectors are fully seated.

• Before connecting or disconnecting the EPS control unit harness connector, turn ignition switch “OFF” and

disconnect the battery cable from the negative terminal. Battery voltage is applied to the EPS control unit

even if ignition switch is turned “OFF”.

STC-4

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000009667170

A.

Steering column assembly

No.

Component

Function

1.

Combination meter
(EPS warning lamp)

• Transmits mainly the following signal to EPS control unit via 

CAN communication.

- Vehicle speed signal (Meter)
• Turns ON the EPS warning lamp according to the signal 

from EPS control unit via CAN communication.

• For detailed installation location, refer to 

MWI-5, "METER 

SYSTEM : Component Parts Location"

.

2.

ABS actuator and electric unit (control unit)

• Transmits mainly the following signal to EPS control unit via 

CAN communication.

- Vehicle speed signal (ABS)
• For detailed installation location, refer to 

BRC-7, "Compo-

nent Parts Location"

.

3.

ECM

• Transmits mainly the following signals to EPS control unit 

via CAN communication.

- Engine status signal
• For detailed installation location, refer to 

EC-14, "ENGINE 

CONTROL SYSTEM : Component Parts Location"

.

• Receives mainly the following signal from EPS control unit 

via CAN communication.

- EPS torque signal

ALGIA0166ZZ

 

 

 

 

 

 

 

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