Infiniti FX35, FX50 (S51). Manual - part 1291

LAN-106

< DTC/CIRCUIT DIAGNOSIS >

[CAN GATEWAY]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000005241951

1.

CHECK FUSE

Check that the following fuse are not blown.

*: VK engine models

Is the fuse fusing?

YES

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between CAN gateway harness connector and ground.

*: VK engine models

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between CAN gateway harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Signal name

Fuse No.

Battery power supply

11

Ignition power supply

3

*

Terminals

Condition

Voltage

(Approx.)

(+)

(

−

)

CAN gateway

Ground

Ignition 

switch

Connector

Terminal

M125

3

OFF

Battery
voltage

9

*

ON

Battery
voltage

CAN gateway

Ground

Continuity

Connector

Terminal

M125

5

Existed

11

LAN

CAN GATEWAY

LAN-107

< ECU DIAGNOSIS INFORMATION >

[CAN GATEWAY]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

ECU DIAGNOSIS INFORMATION

CAN GATEWAY

Reference Value

INFOID:0000000005241952

TERMINAL LAYOUT

PHYSICAL VALUES

JSGIA0023ZZ

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

–

1

(L)

—

CAN-H

Input/ 

Output

—

—

3

(GR)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

4

(L)

—

CAN-H

Input/ 

Output

—

—

5

(B)

Ground

Ground

—

Ignition switch ON

0 V

6

(L)

—

CAN-H

Input/ 

Output

—

—

7

(P)

—

CAN-L

Input/ 

Output

—

—

9

(LG)

Ground

Ignition power supply 
(VK engine models)

Input

Ignition switch

OFF or ACC

0 V

ON

Battery voltage

10

(P)

—

CAN-L

Input/ 

Output

—

—

11

(B)

Ground

Ground

—

Ignition switch ON

0 V

12

(P)

—

CAN-L

Input/ 

Output

—

—

LAN-108

< ECU DIAGNOSIS INFORMATION >

[CAN GATEWAY]

CAN GATEWAY

Wiring Diagram - CAN GATEWAY SYSTEM -

INFOID:0000000005241953

JCMWA4982GB

LAN

CAN GATEWAY

LAN-109

< ECU DIAGNOSIS INFORMATION >

[CAN GATEWAY]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

DTC Inspection Priority Chart

INFOID:0000000005241954

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

JCMWA4983GB