Infiniti G35 (V35). Manual — part 320

DTC U1000, U1001 CAN COMMUNICATION LINE

EC-161

C

D

E

F

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H

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L

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A

EC

DTC U1000, U1001 CAN COMMUNICATION LINE

PFP:23710

Description

NBS000NX

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 independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

On Board Diagnosis Logic

NBS000NY

*1: This self-diagnosis has the one trip detection logic (A/T models).
The MIL will not light up for this self-diagnosis (M/T models).
*2: The MIL will not light up for this self-diagnosis.

DTC Confirmation Procedure

NBS000NZ

1.

Turn ignition switch ON and wait at least 3 seconds.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

If 1st trip DTC is detected, go to

EC-163, "Diagnostic Procedure"

.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

U1000*

1

1000*

1

CAN communication
line

●

When ECM is not transmitting or receiving
CAN communication signal of OBD (emission-
related diagnosis) for 2 seconds or more.

●

Harness or connectors
(CAN communication line is open or
shorted)

U1001*

2

1001*

2

●

When ECM is not transmitting or receiving
CAN communication signal other than OBD
(emission-related diagnosis) for 2 seconds or
more.

EC-162

DTC U1000, U1001 CAN COMMUNICATION LINE

Wiring Diagram

NBS000O0

TBWM0803E

DTC U1000, U1001 CAN COMMUNICATION LINE

EC-163

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EC

Diagnostic Procedure

NBS000O1

Go to

LAN-47, "CAN System Specification Chart"

.

EC-164

DTC U1010 CAN COMMUNICATION

DTC U1010 CAN COMMUNICATION

PFP:23710

Description

NBS002W1

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 independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

On Board Diagnosis Logic

NBS002W2

●

This self-diagnosis has one trip detection logic (A/T models).

●

The MIL will not light up for this self-diagnosis (M/T models).

DTC Confirmation Procedure

NBS002W3

WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

If DTC is detected, go to

EC-165, "Diagnostic Procedure"

.

WITH GST

Follow the procedure “WITH CONSULT-II” above.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

U1010
1010

CAN communication bus

When detecting error during the initial diagno-
sis of CAN controller of ECM.

●

ECM

SEF058Y