Nissan Teana J32. Manual - part 783

LAN-62

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

ECM BRANCH LINE CIRCUIT

ECM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003841849

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).

-

ECM

-

Harness connector E105

-

Harness connector M11

-

Harness connector M77 (Models with automatic drive positioner)

-

Harness connector B11 (Models with automatic drive positioner)

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of ECM.

2.

Check the resistance between the ECM harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the ECM branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the ECM. Refer to 

EC-132, "Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the ECM. Refer to 

EC-14, "ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT : Special Repair Requirement"

.

YES (Past error)>>Error was detected in the ECM branch line.
NO

>> Repair the power supply and the ground circuit.

ECM harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E16

98

97

Approx. 108 – 132

LAN

AV BRANCH LINE CIRCUIT

LAN-63

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

C

D

E

F

G

H

I

J

K

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B

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N

AV BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003841851

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the AV control unit for damage, bend and loose connection (unit
side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of AV control unit.

2.

Check the resistance between the AV control unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the AV control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the AV control unit. Refer to the following.
• Base audio and display system: 

AV-82, "AV CONTROL UNIT : Diagnosis Procedure"

• BOSE audio without navigation: 

AV-236, "AV CONTROL UNIT : Diagnosis Procedure"

• BOSE audio with navigation: 

AV-464, "AV CONTROL UNIT : Diagnosis Procedure"

Is the inspection result normal?

YES (Present error)>>Replace the AV control unit. Refer to the following.

• Base audio and display system: 

AV-170, "Exploded View"

• BOSE audio without navigation: 

AV-378, "Exploded View"

• BOSE audio with navigation: 

AV-648, "Exploded View"

YES (Past error)>>Error was detected in the AV control unit branch line.
NO

>> Repair the power supply and the ground circuit.

AV control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M131

86

87

Approx. 54 – 66

LAN-64

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

HVAC BRANCH LINE CIRCUIT

HVAC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003841852

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the A/C auto amp. for damage, bend and loose connection (unit
side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of A/C auto amp.

2.

Check the resistance between the A/C auto amp. harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the A/C auto amp. branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
• Without color display: 

HAC-65, "A/C AUTO AMP. : Diagnosis Procedure"

• With color display: 

HAC-191, "A/C AUTO AMP. : Diagnosis Procedure"

Is the inspection result normal?

YES (Present error)>>Replace the A/C auto amp. Refer to the following.

• Without color display: 

VTL-23, "Exploded View"

• With color display: 

VTL-80, "Exploded View"

YES (Past error)>>Error was detected in the A/C auto amp. branch line.
NO

>> Repair the power supply and the ground circuit.

A/C auto amp. harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M50

1

2

Approx. 54 – 66

LAN

M&A BRANCH LINE CIRCUIT

LAN-65

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

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M&A BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000003841853

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check the terminals and connectors of the combination meter for damage, bend and loose connection
(unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of combination meter.

2.

Check the resistance between the combination meter harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the combination meter branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the combination meter. Refer to 

MWI-42, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the combination meter. Refer to 

MWI-126, "Exploded View"

.

YES (Past error)>>Error was detected in the combination meter branch line.
NO

>> Repair the power supply and the ground circuit.

Combination meter harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M34

21

22

Approx. 54 – 66