Nissan Pathfinder (2008 year). Manual - part 477

LAN

CAN COMMUNICATION SYSTEM

LAN-71

< COMPONENT DIAGNOSIS >

[CAN]

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ALMIA0125GB

LAN-72

< COMPONENT DIAGNOSIS >

[CAN]

MALFUNCTION AREA CHART

MALFUNCTION AREA CHART

Main Line

INFOID:0000000001316392

Branch Line

INFOID:0000000001316393

Short Circuit

INFOID:0000000001316394

Malfunction Area

Reference

Main line between TCM and data link connector

LAN-73, "Diagnosis Procedure"

Main line between TCM and Intelligent Key unit

LAN-75, "Diagnosis Procedure"

Main line between Intelligent Key unit and data link connector

LAN-77, "Diagnosis Procedure"

Main line between data link connector and ABS actuator and 
electric unit (control unit)

LAN-78, "Diagnosis Procedure"

Malfunction Area

Reference

ECM branch line circuit 

LAN-79, "Diagnosis Procedure"

TCM branch line circuit

LAN-80, "Diagnosis Procedure"

Intelligent Key unit branch line circuit

LAN-81, "Diagnosis Procedure"

Transfer control unit branch line circuit 

LAN-82, "Diagnosis Procedure"

Driver seat control unit branch line circuit

LAN-83, "Diagnosis Procedure"

AV control unit branch line circuit

LAN-84, "Diagnosis Procedure"

BCM branch line circuit 

LAN-85, "Diagnosis Procedure"

Data link connector branch line circuit 

LAN-86, "Diagnosis Procedure"

A/C auto amp. branch line circuit

LAN-87, "Diagnosis Procedure"

Combination meter branch line circuit 

LAN-88, "Diagnosis Procedure"

Steering angle sensor branch line circuit 

LAN-89, "Diagnosis Procedure"

ABS actuator and electric unit (control unit) branch line circuit 

LAN-90, "Diagnosis Procedure"

IPDM E/R branch line circuit 

LAN-91, "Diagnosis Procedure"

Malfunction Area

Reference

CAN communication circuit

LAN-92, "Diagnosis Procedure"

LAN

MAIN LINE BETWEEN TCM AND DLC CIRCUIT

LAN-73

< COMPONENT DIAGNOSIS >

[CAN]

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MAIN LINE BETWEEN TCM AND DLC CIRCUIT

Diagnosis Procedure

INFOID:0000000001316395

INSPECTION PROCEDURE

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 (connector side
and harness side).

-

Harness connector F14

-

Harness connector E5

-

Harness connector E152

-

Harness connector M31

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the following harness connectors.

-

A/T assembly

-

Harness connectors F14 and E5

2.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the A/T assembly and the harness connector F14.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the harness connectors E152 and M31.

2.

Check the continuity between the harness connectors.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the main line between the harness connectors E5 and E152.

4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connector and the data link connector.

Is the inspection result normal?

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

• Decision of CAN system type.

A/T assembly harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F9

3

F14

2

Existed

8

3

Existed

Harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

E5

2

E152

52G

Existed

3

51G

Existed

Harness connector

Data link connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M31

52G

M22

6

Existed

51G

14

Existed

LAN-74

< COMPONENT DIAGNOSIS >

[CAN]

MAIN LINE BETWEEN TCM AND DLC CIRCUIT

• Not received CONSULT-III data [SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR (“ECU

list” included)].

• Procedure for detecting root cause.

YES (Past error)>>Error was detected in the main line between the TCM and the data link connector.
NO

>> Repair the main line between the harness connector M31 and the data link connector.

LAN

MAIN LINE BETWEEN TCM AND I-KEY CIRCUIT

LAN-75

< COMPONENT DIAGNOSIS >

[CAN]

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MAIN LINE BETWEEN TCM AND I-KEY CIRCUIT

Diagnosis Procedure

INFOID:0000000001318830

INSPECTION PROCEDURE

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 (connector side
and harness side).

-

Harness connector F14

-

Harness connector E5

-

Harness connector E152

-

Harness connector M31

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the following harness connectors.

-

A/T assembly

-

Harness connectors F14 and E5

2.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the A/T assembly and the harness connector F14.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the harness connectors E152 and M31.

2.

Check the continuity between the harness connectors.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the main line between the harness connectors E5 and E152.

4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the connector of Intelligent Key unit.

2.

Check the continuity between the harness connector and the Intelligent Key unit harness connector.

Is the inspection result normal?

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

A/T assembly harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

F9

3

F14

2

Existed

8

3

Existed

Harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

E5

2

E152

52G

Existed

3

51G

Existed

Harness connector

Intelligent Key unit harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M31

52G

M164

2

Existed

51G

3

Existed

LAN-76

< COMPONENT DIAGNOSIS >

[CAN]

MAIN LINE BETWEEN TCM AND I-KEY CIRCUIT

• Decision of CAN system type.
• Not received CONSULT-III data [SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR (“ECU

list” included)].

• Procedure for detecting root cause.

YES (Past error)>>Error was detected in the main line between the TCM and the Intelligent Key unit.
NO

>> Repair the main line between the harness connector M31 and the Intelligent Key unit.

LAN

MAIN LINE BETWEEN I-KEY AND DLC CIRCUIT

LAN-77

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[CAN]

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MAIN LINE BETWEEN I-KEY AND DLC CIRCUIT

Diagnosis Procedure

INFOID:0000000001316398

INSPECTION PROCEDURE

1.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect the following harness connectors.

-

ECM

-

Intelligent Key unit

4.

Check the continuity between the Intelligent Key unit harness connector and the data link connector.

Is the inspection result normal?

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

• Decision of CAN system type.
• Not received CONSULT-III data [SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR (“ECU

list” included)].

• Procedure for detecting root cause.

YES (Past error)>>Error was detected in the main line between the Intelligent Key unit and the data link con-

nector.

NO

>> Repair the main line between the Intelligent Key unit and the data link connector.

Intelligent Key unit harness connector

Data link connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M164

2

M22

6

Existed

3

14

Existed

LAN-78

< COMPONENT DIAGNOSIS >

[CAN]

MAIN LINE BETWEEN DLC AND ABS CIRCUIT

MAIN LINE BETWEEN DLC AND ABS CIRCUIT

Diagnosis Procedure

INFOID:0000000001316400

INSPECTION PROCEDURE

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 (connector side
and harness side).

-

Harness connector M91

-

Harness connector E26

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the harness connectors M91 and E26.

2.

Check the continuity between the data link connector and the harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the data link connector and the harness connector M91.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the connector of ABS actuator and electric unit (control unit).

2.

Check the continuity between the harness connector and the ABS actuator and electric unit (control unit)
harness connector.

Is the inspection result normal?

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

• Decision of CAN system type.
• Not received CONSULT-III data [SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR (“ECU

list” included)].

• Procedure for detecting root cause.

YES (Past error)>>Error was detected in the main line between the data link connector and the ABS actuator

and electric unit (control unit).

NO

>> Repair the main line between the harness connector E26 and the ABS actuator and electric unit

(control unit).

Data link connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M22

6

M91

11

Existed

14

10

Existed

Harness connector

ABS actuator and electric unit (control unit)

harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

E26

11

E125

11

Existed

10

15

Existed