Nissan Cube. Manual - part 636

LAN

LAN-1

ELECTRICAL & POWER CONTROL

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SECTION 

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CONTENTS

LAN SYSTEM

CAN FUNDAMENTAL

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

3

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

3

Precautions for Trouble Diagnosis  ............................

3

Precautions for Harness Repair  ................................

3

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

4

CAN COMMUNICATION SYSTEM  .....................

4

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

4

System Diagram ........................................................

4

CAN Communication Control Circuit .........................

5

DIAG ON CAN  .....................................................

6

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

6

System Diagram ........................................................

6

TROUBLE DIAGNOSIS  ......................................

7

Condition of Error Detection ......................................

7

Symptom When Error Occurs in CAN Communi-
cation System ............................................................

7

CAN Diagnosis with CONSULT  ..............................

10

Self-Diagnosis .........................................................

10

CAN Diagnostic Support Monitor  ............................

10

How to Use CAN Communication Signal Chart  ......

12

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

13

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

13

Trouble Diagnosis Flow Chart  .................................

13

Trouble Diagnosis Procedure ..................................

13

CAN

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

18

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

18

Caution ....................................................................

18

Abbreviation List ......................................................

18

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

19

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

19

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

19

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

19

Precautions for Trouble Diagnosis  ..........................

19

Precautions for Harness Repair  ..............................

20

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

21

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

21

Interview Sheet ........................................................

21

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

22

CAN COMMUNICATION SYSTEM  ...................

22

CAN System Specification Chart .............................

22

CAN Communication Signal Chart  ..........................

22

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

25

CAN COMMUNICATION SYSTEM  ...................

25

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

25

Wiring Diagram - CAN SYSTEM -  ...........................

26

MALFUNCTION AREA CHART ........................

30

Main Line  .................................................................

30

Branch Line  .............................................................

30

Short Circuit .............................................................

30

MAIN LINE BETWEEN IPDM-E AND DLC 
CIRCUIT ............................................................

31

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

31

ECM BRANCH LINE CIRCUIT  .........................

32

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

32

ABS BRANCH LINE CIRCUIT ..........................

33

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

33

IPDM-E BRANCH LINE CIRCUIT  .....................

34

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

34

LAN-2

TCM BRANCH LINE CIRCUIT  ..........................

35

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

35

A-BAG BRANCH LINE CIRCUIT  ......................

36

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

36

DLC BRANCH LINE CIRCUIT ...........................

37

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

37

EPS BRANCH LINE CIRCUIT  ...........................

38

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

38

M&A BRANCH LINE CIRCUIT  ..........................

39

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

39

STRG BRANCH LINE CIRCUIT  ........................

40

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

40

BCM BRANCH LINE CIRCUIT  ..........................

41

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

41

CAN COMMUNICATION CIRCUIT ....................

42

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

42

CAN SYSTEM (TYPE  1)

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

44

MAIN LINE BETWEEN IPDM-E AND DLC 
CIRCUIT .............................................................

44

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

44

ECM BRANCH LINE CIRCUIT  ..........................

45

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

45

ABS BRANCH LINE CIRCUIT  ..........................

46

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

46

IPDM-E BRANCH LINE CIRCUIT  .....................

47

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

47

A-BAG BRANCH LINE CIRCUIT  ......................

48

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

48

DLC BRANCH LINE CIRCUIT ...........................

49

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

49

EPS BRANCH LINE CIRCUIT  ...........................

50

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

50

M&A BRANCH LINE CIRCUIT  ..........................

51

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

51

STRG BRANCH LINE CIRCUIT  ........................

52

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

52

BCM BRANCH LINE CIRCUIT ..........................

53

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

53

CAN COMMUNICATION CIRCUIT  ...................

54

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

54

CAN SYSTEM (TYPE  2)

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

56

MAIN LINE BETWEEN IPDM-E AND DLC 
CIRCUIT .............................................................

56

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

56

ECM BRANCH LINE CIRCUIT  ..........................

57

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

57

ABS BRANCH LINE CIRCUIT  ..........................

58

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

58

IPDM-E BRANCH LINE CIRCUIT  .....................

59

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

59

TCM BRANCH LINE CIRCUIT  ..........................

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

60

A-BAG BRANCH LINE CIRCUIT  ......................

61

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

61

DLC BRANCH LINE CIRCUIT  ..........................

62

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

62

EPS BRANCH LINE CIRCUIT ...........................

63

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

63

M&A BRANCH LINE CIRCUIT ..........................

64

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

64

STRG BRANCH LINE CIRCUIT  ........................

65

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

65

BCM BRANCH LINE CIRCUIT ..........................

66

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

66

CAN COMMUNICATION CIRCUIT  ...................

67

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

67

LAN

PRECAUTIONS

LAN-3

< PRECAUTION >

[CAN FUNDAMENTAL]

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PRECAUTION

PRECAUTIONS

Precautions for Trouble Diagnosis

INFOID:0000000009949468

CAUTION:

• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.
• Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when

checking the harness. 

Precautions for Harness Repair

INFOID:0000000009949469

• Solder the repaired area and wrap tape around the soldered area.

NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).

• Bypass connection is never allowed at the repaired area.

NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost. 

• Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communica-

tion line.

SKIB8766E

SKIB8767E

LAN-4

< SYSTEM DESCRIPTION >

[CAN FUNDAMENTAL]

CAN COMMUNICATION SYSTEM

SYSTEM DESCRIPTION

CAN COMMUNICATION SYSTEM

System Description

INFOID:0000000009949470

• CAN communication is a multiplex communication system. This enables the system to transmit and receive

large quantities of data at high speed by connecting control units with two communication lines (CAN-H and
CAN-L).

• Control units on the CAN network transmit signals using the CAN communication control circuit. They

receive only necessary signals from other control units to operate various functions.

• CAN communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

System Diagram

INFOID:0000000009949471

Each control unit passes an electric current to the termination circuits when transmitting CAN communication
signal. The termination circuits produce an electrical potential difference between CAN-H and CAN-L. CAN
communication system transmits and receives CAN communication signals by the potential difference.

SKIB8887E

Component

Description

Main line

CAN communication line between splices

Branch line

CAN communication line between splice and a control unit

Splice

A point connecting a branch line with a main line

Termination circuit

Refer to 

LAN-5, "CAN Communication Control Circuit"

.