Infiniti EX35. Manual - part 1009

 

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Infiniti EX35. Manual - part 1009

 

 

LAN

CAN COMMUNICATION CIRCUIT

LAN-95

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 2)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Inspection result

Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is

detected.

6.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.
1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect one of the unit connectors of CAN communication system.
NOTE:
ECM and IPDM E/R have a termination circuit. Check other units first.

4.

Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced. 
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms. 

Inspection result

Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.

LAN-96

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 3)]

MAIN LINE BETWEEN AV AND DLC CIRCUIT

COMPONENT DIAGNOSIS

MAIN LINE BETWEEN AV AND DLC CIRCUIT

Diagnosis Procedure

INFOID:0000000003515573

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

-

AV control unit

4.

Check the continuity between the AV control unit harness connector and the data link connector.

-

Models with NAVI

-

Models without NAVI

Is the inspection result normal?

YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the AV control unit and the data link connec-

tor. 

NO

>> Repair the main line between the AV control unit and the data link connector.

AV control unit harness connector

Data link connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M87

52

M24

6

Existed

53

14

Existed

AV control unit harness connector

Data link connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M85

86

M24

6

Existed

87

14

Existed

LAN

MAIN LINE BETWEEN DLC AND TCM CIRCUIT

LAN-97

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 3)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

MAIN LINE BETWEEN DLC AND TCM CIRCUIT

Diagnosis Procedure

INFOID:0000000003515575

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

-

Harness connectors M116 and F103

4.

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

Is the inspection result normal?

YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the data link connector and the TCM. 
NO

>> Repair the main line between the data link connector and the harness connector M116.

Data link connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M24

6

M116

44

Existed

14

43

Existed

LAN-98

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 3)]

MAIN LINE BETWEEN TCM AND ADP CIRCUIT

MAIN LINE BETWEEN TCM AND ADP CIRCUIT

Diagnosis Procedure

INFOID:0000000003515579

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 M7

-

Harness connector B1

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.

-

Harness connectors F103 and M116

-

Harness connectors M7 and B1

2.

Check the continuity between the harness connectors.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the harness connectors M116 and M7.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connector terminals.

Is the inspection result normal?

YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the TCM and the driver seat control unit. 
NO

>> Repair the main line between the harness connector B1 and the driver seat control unit.

Harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M116

44

M7

34

Existed

43

35

Existed

Connector No.

Terminal No.

Continuity

B1

34

36

Existed

35

37

Existed

 

 

 

 

 

 

 

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