Infiniti FX35, FX50 (S51). Manual - part 1314

 

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Infiniti FX35, FX50 (S51). Manual - part 1314

 

 

LAN-198

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

DLC BRANCH LINE CIRCUIT

DLC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000005577040

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 CAN system type decision again.
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 (

)

Connector No.

Terminal No.

M24

6

14

Approx. 54 – 66

LAN

TCM BRANCH LINE CIRCUIT

LAN-199

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

TCM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000005577041

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).

-

A/T assembly

-

Harness connector F103

-

Harness connector M116

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 POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the TCM. Refer to the following.
• VQ engine models: 

TM-119, "Diagnosis Procedure"

• VK engine models: 

TM-301, "Diagnosis Procedure"

Is the inspection result normal?

YES (Present error)>>Replace the control valve with TCM. (Replace A/T assembly if control valve with TCM

is not listed in the latest parts list.) Refer to the following.

• VQ engine models: 

TM-11, "Component Parts Location"

• VK engine models: 

TM-193, "Component Parts Location"

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 (

)

Connector No.

Terminal No.

F51

3

8

Approx. 54 – 66

LAN-200

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

A-BAG BRANCH LINE CIRCUIT

A-BAG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000005577042

WARNING:

• 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-5, "Work Flow"

.

Is the inspection result normal?

YES

>> Replace the main harness.

NO

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

LAN

AV BRANCH LINE CIRCUIT

LAN-201

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 5)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

AV BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000005577043

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.

-

Models with navigation system

-

Models without navigation 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.
• Without navigation: 

AV-101, "AV CONTROL UNIT : Diagnosis Procedure"

• With navigation (Single monitor): 

AV-291, "AV CONTROL UNIT : Diagnosis Procedure"

• With navigation (Twin monitor): 

AV-510, "AV CONTROL UNIT : Diagnosis Procedure"

Is the inspection result normal?

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

• Without navigation: 

AV-136, "Exploded View"

• With navigation (Single monitor): 

AV-333, "Exploded View"

• With navigation (Twin monitor): 

AV-562, "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 (

)

Connector No.

Terminal No.

M210

90

74

Approx. 54 – 66

AV control unit harness connector

Resistance (

)

Connector No.

Terminal No.

M204

81

80

Approx. 54 – 66

 

 

 

 

 

 

 

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