Nissan Teana J32. Manual - part 768

LAN-2

ADP BRANCH LINE CIRCUIT  ..........................

36

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

36

AV BRANCH LINE CIRCUIT  .............................

37

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

37

HVAC 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

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

42

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

42

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

43

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

43

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

44

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

44

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

45

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

45

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

46

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

46

CAN SYSTEM (TYPE  2)

COMPONENT DIAGNOSIS  ........................

48

MAIN LINE BETWEEN M&A AND DLC CIR-
CUIT ...................................................................

48

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

48

MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ...................................................................

49

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

49

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

50

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

50

HVAC BRANCH LINE CIRCUIT  ........................

51

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

51

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

52

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

52

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

53

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

53

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

54

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

54

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

55

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

55

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

56

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

56

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

57

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

57

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

58

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

58

CAN SYSTEM (TYPE  4)

COMPONENT DIAGNOSIS  .......................

60

MAIN LINE BETWEEN M&A AND DLC CIR-
CUIT ...................................................................

60

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

60

MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ...................................................................

61

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

61

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

62

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

62

AV BRANCH LINE CIRCUIT  .............................

63

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

63

HVAC BRANCH LINE CIRCUIT ........................

64

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

64

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

65

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

65

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

66

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

66

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

67

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

67

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

68

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

68

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

69

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

69

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

70

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

70

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

71

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

71

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

72

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

72

CAN SYSTEM (TYPE  6)

COMPONENT DIAGNOSIS  .......................

74

MAIN LINE BETWEEN ADP AND M&A CIR-
CUIT ...................................................................

74

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

74

MAIN LINE BETWEEN M&A AND DLC CIR-
CUIT ...................................................................

75

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

75

LAN

LAN-3

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MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ....................................................................

76

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

76

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

77

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

77

ADP BRANCH LINE CIRCUIT  ...........................

78

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

78

AV BRANCH LINE CIRCUIT ..............................

79

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

79

HVAC BRANCH LINE CIRCUIT  ........................

80

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

80

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

81

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

81

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

82

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

82

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

83

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

83

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

84

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

84

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

85

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

85

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

86

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

86

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

87

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

87

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

88

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

88

CAN SYSTEM (TYPE  9)

COMPONENT DIAGNOSIS  .........................

90

MAIN LINE BETWEEN ADP AND M&A CIR-
CUIT ....................................................................

90

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

90

MAIN LINE BETWEEN M&A AND DLC CIR-
CUIT ..................................................................

91

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

91

MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ..................................................................

92

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

92

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

93

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

93

ADP BRANCH LINE CIRCUIT ..........................

94

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

94

AV BRANCH LINE CIRCUIT  ............................

95

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

95

HVAC BRANCH LINE CIRCUIT  .......................

96

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

96

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

97

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

97

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

98

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

98

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

99

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

99

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

100

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

100

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

101

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

101

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

102

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

102

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

103

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

103

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

104

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

104

LAN-4

< PRECAUTION >

[CAN FUNDAMENTAL]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precautions for Trouble Diagnosis

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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

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• 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

CAN COMMUNICATION SYSTEM

LAN-5

< FUNCTION DIAGNOSIS >

[CAN FUNDAMENTAL]

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FUNCTION DIAGNOSIS

CAN COMMUNICATION SYSTEM

System Description

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• 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

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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-6, "CAN Communication Control Circuit"

.