Nissan Murano. Manual - part 969

LAN

ECM BRANCH LINE CIRCUIT

LAN-187

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 8)]

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ECM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000010093039

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).

-

Models with automatic back door system

•

ECM

•

Harness connector E104

•

Harness connector B4

-

Models without automatic back door system

•

ECM

•

Harness connector E105

•

Harness connector M11

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-148, "Diagnosis Procedure"

.

Is the inspection result normal?

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

EC-16, "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-188

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 8)]

4WD BRANCH LINE CIRCUIT

4WD BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000010093041

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 AWD 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 AWD control unit.

2.

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

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the AWD control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the AWD control unit. Refer to 

DLN-21, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

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

DLN-53, "Removal and Installation"

.

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

>> Repair the power supply and the ground circuit.

AWD control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M69

8

16

Approx. 54 – 66

LAN

HVAC BRANCH LINE CIRCUIT

LAN-189

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 8)]

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HVAC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000010093136

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 7 inch display: 

HAC-77, "A/C AUTO AMP. : Diagnosis Procedure"

• With 7 inch display: 

HAC-202, "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 7 inch display: 

VTL-25, "Removal and Installation"

• With 7 inch display: 

VTL-89, "Removal and Installation"

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-190

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 8)]

M&A BRANCH LINE CIRCUIT

M&A BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000010093137

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-44, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

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

MWI-105, "Removal and Installation"

.

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