Nissan Pathfinder (2012 year). Manual - part 456

LAN-76

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

TCM BRANCH LINE CIRCUIT

TCM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355000

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/T assembly 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/T assembly.

2. Check the resistance between the A/T assembly harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the TCM branch line.

3.

CHECK HARNESS FOR OPEN CIRCUIT

1. Remove the control valve with TCM. Refer to 

TM-176, "Removal and Installation"

.

2. Disconnect the connector of TCM.

3. Check the continuity between the A/T assembly harness connector and TCM harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the harness between the A/T assembly harness connector and the TCM harness connec-

tor.

4.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

TM-101, "Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the control valve with TCM. Refer to 

TM-176, "Removal and Installation"

.

YES (Past error)>>Error was detected in the TCM branch line.

NO

>> Repair the power supply and the ground circuit.

A/T assembly harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

F9

3

8

Approx. 54 – 66

A/T assembly harness connec-

tor

TCM harness connector

Continuity

Terminal No.

Connector No.

Terminal No.

3

F502

1

Existed

8

2

Existed

August 2012

2012 Pathfinder

LAN

A-BAG BRANCH LINE CIRCUIT

LAN-77

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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A-BAG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007983482

WARNING:

Always observe the following items for preventing accidental activation.

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes

or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

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 air bag diagnosis sensor unit for damage, bend and loose con-

nection (unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the main harness.

2.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Check the air bag diagnosis sensor unit. Refer to 

SRC-3, "Work Flow"

.

Is the inspection result normal?

YES

>> Replace the main harness.

NO

>> Replace parts whose air bag system has a malfunction.

August 2012

2012 Pathfinder

LAN-78

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

AV BRANCH LINE CIRCUIT

AV BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355001

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.

-

With BOSE audio system with navigation system

-

With BOSE audio system without navigation system

-

With mid audio system

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.

• With BOSE audio system with navigation system: 

AV-334, "AV CONTROL UNIT : Diagnosis Procedure"

• With BOSE audio system without navigation system: 

AV-162, "AV CONTROL UNIT : Diagnosis Procedure"

• With mid audio system: 

AV-65, "AV CONTROL UNIT : Diagnosis Procedure"

Is the inspection result normal?

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

• With BOSE audio system with navigation system: 

AV-420, "Removal and Installation"

• With BOSE audio system without navigation system: 

AV-255, "Removal and Installation"

• With mid audio system: 

AV-114, "Removal and Installation"

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.

M48

99

100

Approx. 54 – 66

AV control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M70

86

87

Approx. 54 – 66

AV control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M135

86

87

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN

I-KEY BRANCH LINE CIRCUIT

LAN-79

< DTC/CIRCUIT DIAGNOSIS >

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I-KEY BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355002

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 Intelligent Key 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 Intelligent Key unit.

2. Check the resistance between the Intelligent Key unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the Intelligent Key unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the Intelligent Key unit. Refer to 

DLK-54, "INTELLIGENT

KEY UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the Intelligent Key unit.

YES (Past error)>>Error was detected in the Intelligent Key unit branch line.

NO

>> Repair the power supply and the ground circuit.

Intelligent Key unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M164

2

3

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN-80

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

4WD BRANCH LINE CIRCUIT

4WD BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355003

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 transfer control unit connector 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 transfer control unit.

2. Check the resistance between the transfer control unit harness connector terminals.

-

All-mode 4WD models

-

Part time 4WD models

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the transfer control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

• All-mode 4WD models: 

DLN-28, "Diagnosis Procedure"

• Part time 4WD models: 

DLN-206, "Diagnosis Procedure"

Is the inspection result normal?

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

• All-mode 4WD models: 

DLN-140, "Removal and Installation"

• Part time 4WD models: 

DLN-278, "Removal and Installation"

YES (Past error)>>Error was detected in the transfer control unit branch line.

NO

>> Repair the power supply and the ground circuit.

Transfer control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M152

7

8

Approx. 54 – 66

Transfer control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M165

1

2

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN

ADP BRANCH LINE CIRCUIT

LAN-81

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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ADP BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355004

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).

-

Driver seat control unit

-

Harness connector B200

-

Harness connector B37

-

Harness connector B69

-

Harness connector M40

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 driver seat control unit.

2. Check the resistance between the driver seat control unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the driver seat control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

ADP-48, "DRIVER SEAT

CONTROL UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

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

ADP-149, "Removal and Installation"

.

YES (Past error)>>Error was detected in the driver seat control unit branch line.

NO

>> Repair the power supply and the ground circuit.

Driver seat control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

B202

3

19

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN-82

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

BCM BRANCH LINE CIRCUIT

BCM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355005

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 BCM 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 BCM.

2. Check the resistance between the BCM harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the BCM branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

BCS-30, "Diagnosis Procedure"

.

Is the inspection result normal?

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

BCS-53, "Removal and Installation"

.

YES (Past error)>>Error was detected in the BCM branch line.

NO

>> Repair the power supply and the ground circuit.

BCM harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M18

39

40

Approx. 54 – 66

August 2012

2012 Pathfinder

LAN

DLC BRANCH LINE CIRCUIT

LAN-83

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

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DLC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000007355006

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 data link connector for damage, bend and loose connection

(connector side and harness side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

Check the resistance between the data link connector terminals.

Is the measurement value within the specification?

YES (Present error)>>Check the following items again.

• Decision of CAN system type.

• Not received CONSULT data (SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR).

• Procedure for detecting root cause.

YES (Past error)>>Error was detected in the data link connector branch line circuit.

NO

>> Repair the data link connector branch line.

Data link connector

Resistance (

Ω

)

Connector No.

Terminal No.

M22

6

14

Approx. 54 – 66

August 2012

2012 Pathfinder