Infiniti FX35 / FX45. Manual - part 764

TROUBLE DIAGNOSES WORK FLOW

LAN-33

< SERVICE INFORMATION >

[CAN FUNDAMENTAL]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

N

O

P

b.

The tachometer moved normally: Put check marks between ECM and M&A. The circuit between ECM and
M&A is functioning properly (check marks 5-b in the figure below).

6.

The circuit which has the most amount of lines are the possible cause. Error is detected from ABS actua-
tor and electric unit (control unit) branch line (shaded in the figure below).
NOTE:
For abbreviations, refer to 

LAN-37, "Abbreviation List"

.

SKIB8735E

LAN-34

< SERVICE INFORMATION >

[CAN FUNDAMENTAL]

TROUBLE DIAGNOSES WORK FLOW

7.

Perform the inspection procedure for the possible cause. Refer to 

LAN-68, "Malfunction Area Chart"

.

Past Error — Short Circuit —

When the symptoms listed below exist, a short circuit of the CAN communication line is a possible cause.

PKID1224E

Item (CONSULT-III)

Indication

Inspection procedure

SELF-DIAG RESULTS

 “U1000” and “U1001” is indicated in the past for most units.

Refer to 

LAN-68, "Malfunction 

Area Chart"

.

CAN DIAG SUPPORT MNTR

Only on CAN DIAG SUPPORT MNTR (with PAST), “1 - 39” is in-
dicated on “PAST” of “TRANSMIT DIAG” and the reception item.

TROUBLE DIAGNOSES WORK FLOW

LAN-35

< SERVICE INFORMATION >

[CAN FUNDAMENTAL]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

N

O

P

PKID1225E

LAN-36

< SERVICE INFORMATION >

[CAN]

INDEX FOR DTC

SERVICE INFORMATION

INDEX FOR DTC

DTC No. Index

INFOID:0000000001328627

DTC

Self-diagnosis item

 (CONSULT-III indication)

DTC detection condition

Inspection

U1000

CAN COMM CIRCUIT

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

Refer to 

LAN-37

.

When a control unit (except for ECM) is not 
transmitting or receiving CAN communication 
signal for 2 seconds or more.

U1001

CAN COMM CIRCUIT

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

U1002

SYSTEM COMM

When a control unit is not transmitting or receiv-
ing CAN communication signal for 2 seconds or 
less.

Start the inspection. Re-
fer to the applicable sec-
tion of the indicated 
control unit.

U1010

CONTROL UNIT [CAN]

When an error is detected during the initial diag-
nosis for CAN controller of each control unit.

Replace the control unit 
indicating “U1010”.