Nissan Versa Sedan. Instruction - part 807

TM-134

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

U0140 LOST COMMUNICATION (BCM)

U0140 LOST COMMUNICATION (BCM)

DTC Logic

INFOID:0000000009267885

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and wait for at least 5 seconds.

2. Check the DTC.
Is “U0140” detected?

YES

>> Go to 

TM-134, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267886

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U0140

Lost Communication With Body 
Control Module

When the ignition switch is ON, 
TCM is unable to receive the 
CAN communications signal 
from BCM continuously for 2 
seconds or more.

• BCM
• Harness or connector

(CAN communication line is 
open or shorted)

U0155 LOST COMMUNICATION (IPC)

TM-135

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

U0155 LOST COMMUNICATION (IPC)

DTC Logic

INFOID:0000000009267887

DTC DETECTION LOGIC

DTC REPRODUCTION PROCEDURE

1.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and wait for at least 5 seconds.

2. Check the DTC.
Is “U0155” detected?

YES

>> Go to 

TM-135, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267888

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

U0155

Lost Communication With In-
strument Panel Cluster (IPC) 
Control Module

When the ignition switch is ON, 
TCM is unable to receive the 
CAN communications signal 
from the combination meter 
continuously for 2 seconds or 
more.

• Combination meter
• Harness or connector

(CAN communication line is 
open or shorted)

TM-136

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

U0300 CAN COMMUNICATION DATA

U0300 CAN COMMUNICATION DATA

Description

INFOID:0000000009267889

The amount of data transmitted from each control unit is read.

DTC Logic

INFOID:0000000009267890

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

1. Start the engine and wait 2 seconds or more.

2. Check DTC.
Is “U0300” detected?

YES

>> Go to 

TM-136, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267891

1.

CHECK CONTROL UNIT

Check the number of control units replaced before detecting “U0300”.
Is the number of replaced control units one?

YES

>> Since the replaced control unit may be out of specifications, check the part number and specifica-

tions.

NO

>> GO TO 2.

2.

INSPECTION CONTROL UNIT

With CONSULT

1. Remove one of the replaced control units.

2. Install the previous control unit mounted before replacement.

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

4. Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “U0300” detected?

YES

>> Turn OFF the ignition switch to check the other control units using the same method.

NO

>> Since the removed control unit may be out of specifications, check the part number and specifica-

tions.

DTC

Trouble diagnosis name

DTC detecting condition

Possible cause

U0300

Internal Control Module Soft-
ware Incompatibility

When the amount of data trans-
mitted from each control unit is 
smaller than the specified 
amount.

Control units other than TCM.

U1000 CAN COMM CIRCUIT

TM-137

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009267892

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 malfunction detection ability.

Many electronic 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 con-

nected 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.

DTC Logic

INFOID:0000000009267893

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” is previously conducted, always turn ignition switch OFF and wait at

least 10 seconds before performing the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

1. Start the engine.

2. Run engine for at least 5 consecutive seconds at idle speed.

3. Check the DTC.
Is “U1000” detected?

YES

>> Go to 

TM-137, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267894

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC is detected if...

Possible cause

U1000

CAN Communication Line

TCM is not transmitting CAN 
communication signal for 2 sec-
onds or more.

• Harness or connectors

(CAN communication line is 
open or shorted.)

• TCM