Infiniti FX35, FX50 (S51). Manual - part 77

AV

INSPECTION AND ADJUSTMENT

AV-81

< BASIC INSPECTION >

[WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

NOTE:
AVM: Around view monitor

AV-82

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT NAVIGATION]

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000005528898

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independently). In CAN communication, control units are connected with 2
communication lines (CAN-H, 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:0000000005528899

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005528900

1.

PERFORM SELF-DIAGNOSTIC

1.

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

2.

Check “Self Diagnostic Result” of “MULTI AV”. 

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to “LAN system”. Refer to 

LAN-20, "Trouble Diagnosis Procedure"

.

NO

>> Refer to GI section. Refer to 

GI-36, "Intermittent Incident"

.

DTC

Display contents of CON-

SULT-III

DTC detection condition

Probable malfunction location

U1000

CAN COMM CIRCUIT
[U1000]

AV control unit is not transmitting or receiving 
CAN communication signal for 2 seconds or 
more.

CAN communication system.

AV

U1010 CONTROL UNIT (CAN)

AV-83

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000005528901

DTC DETECTION LOGIC

DTC

Display contents of CON-

SULT-III

DTC detection condition

Probable malfunction factor

U1010

CONTROL UNIT (CAN)
[U1010]

CAN initial diagnosis malfunction is detected.

Replace the AV control unit if the malfunction 
occurs constantly.

AV-84

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT NAVIGATION]

U1200 AV CONTROL UNIT

U1200 AV CONTROL UNIT

DTC Logic

INFOID:0000000005528902

DTC

Display contents of 

CONSULT-III

DTC detection condition

Possible malfunction factor

U1200

Cont Unit
[U1200]

AV control unit malfunction is detected.

Replace the AV control unit if the mal-
function occurs constantly.