Infiniti FX35, FX50 (S51). Manual - part 1290

LAN-102

< SYSTEM DESCRIPTION >

[CAN GATEWAY]

DIAGNOSIS SYSTEM (CAN GATEWAY)

DIAGNOSIS SYSTEM (CAN GATEWAY)

CONSULT-III Function (CAN gateway)

INFOID:0000000005241941

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with CAN gateway.

SELF DIAGNOSTIC RESULT

Refer to 

LAN-110, "DTC Index"

.

Diagnosis mode

Function Description

Ecu Identification

The CAN gateway part number is displayed.

Self Diagnostic Result

Displays the diagnosis results judged by CAN gateway.

CAN Diag Support Monitor

The results of transmit/receive diagnosis of CAN communication can be read.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing CAN gateway.

LAN

U1000 CAN COMM CIRCUIT

LAN-103

< DTC/CIRCUIT DIAGNOSIS >

[CAN GATEWAY]

C

D

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F

G

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B

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N

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000005241942

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two communication lines (CAN-H and CAN-L) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-30, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000005241943

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005241944

1.

PERFORM SELF DIAGNOSTIC

1.

Turn the ignition switch ON and wait for 2 seconds or more.

2.

Check “Self Diagnostic Result”.

Is “U1000: CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-20, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-36, "Intermittent Incident"

.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When CAN gateway cannot communicate 
CAN communication signal continuously for 2 
seconds or more.

CAN communication system

LAN-104

< DTC/CIRCUIT DIAGNOSIS >

[CAN GATEWAY]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000005241945

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two communication lines (CAN-H and CAN-L) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-30, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000005241946

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005241947

1.

REPLACE CAN GATEWAY

When DTC “U1010: CONTROL UNIT(CAN)” is detected, replace CAN gateway.

>> Replace CAN gateway. Refer to 

LAN-112, "Exploded View"

.

DTC

CONSULT-III display

description

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT(CAN)

When an error is detected during the initial di-
agnosis for CAN controller of CAN gateway.

CAN gateway

LAN

B2600 CONFIG ERROR

LAN-105

< DTC/CIRCUIT DIAGNOSIS >

[CAN GATEWAY]

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B2600 CONFIG ERROR

Description

INFOID:0000000005241948

The CAN gateway requires initial settings to judge necessary information, according to a vehicle specification.

DTC Logic

INFOID:0000000005241949

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005241950

1.

REPLACE CAN GATEWAY

When DTC “B2600: CONFIG ERROR” is detected, replace CAN gateway.

>> Replace CAN gateway. Refer to 

LAN-112, "Exploded View"

.

DTC

CONSULT-III display

description

DTC Detection Condition

Probable cause

B2600

CONFIG ERROR
WRONG DATA

When errors are detected in the configuration 
data stored in the CAN gateway.

CAN gateway

CONFIG ERROR
NOT CONFIGURED

When no data are stored in the CAN gateway.