Nissan Qashqai J11. Manual - part 679

U0140 LOST COMMUNICATION (BCM)

TM-291

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10D]

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U0140 LOST COMMUNICATION (BCM)

DTC Logic

INFOID:0000000010589274

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

With CONSULT

1.

Start the engine and wait for at least 5 seconds.

2.

Check the DTC.

Is “U0140” detected?

YES

>> Go to 

TM-291, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010589275

For the diagnosis procedure, refer to 

LAN-24, "Trouble Diagnosis Flow Chart"

. 

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

U0140

LOST COMM (BCM)
(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)

TM-292

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10D]

U0141 LOST COMMUNICATION (BCM A)

U0141 LOST COMMUNICATION (BCM A)

DTC Logic

INFOID:0000000010589276

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

With CONSULT

1.

Start the engine and wait for at least 5 seconds.

2.

Check the DTC.

Is “U0141” detected?

YES

>> Go to 

TM-292, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010589277

For the diagnosis procedure, refer to 

LAN-24, "Trouble Diagnosis Flow Chart"

. 

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

U0141

LOST COMM (BCM A)
(Lost Communication With 
Body Control Module A)

When the ignition switch is turned ON, TCM 
continues no reception of the CAN communi-
cation signal from IPDM E/R for 2 seconds or 
more. 

• IPDM  E/R
• Harness or connector

(CAN communication line is open or 
shorted)

U0155 LOST COMMUNICATION (IPC)

TM-293

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10D]

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U0155 LOST COMMUNICATION (IPC)

DTC Logic

INFOID:0000000010589278

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

With CONSULT

1.

Start the engine and wait for at least 5 seconds.

2.

Check the DTC.

Is “U0155” detected?

YES

>> Go to 

TM-293, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010589279

For the diagnosis procedure, refer to 

LAN-24, "Trouble Diagnosis Flow Chart"

. 

DTC

CONSULT screen terms

[Trouble diagnosis content]

DTC detection condition

Possible causes

U0155

LOST COMM (IPC)
[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-294

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10D]

U0300 CAN COMMUNICATION DATA

U0300 CAN COMMUNICATION DATA

DTC Logic

INFOID:0000000010589280

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.

CHECK DTC DETECTION

With CONSULT

1.

Start the engine and wait for 5 seconds or more.

2.

Check the DTC.

Is “U0300” detected?

YES

>> Go to 

TM-294, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010589281

1.

CONTROL UNIT CHECK 

Check the number of control units replaced before “U0300” is detected. 
Is one control unit replaced? 

YES

>> The specification of the control unit replaced may be incorrect. Check the part number and the

specification. 

NO

>> GO TO 2.

2.

CONTROL UNIT CHECK

With CONSULT

1.

Remove one of the control unit replaced. 

2.

Assemble the old control unit before replacement. 

3.

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

4.

Select “Self Diagnostic Results” in “TRANSMISSION”.

Is “U0300”detected?

YES

>> Turn OFF the ignition switch and check other control units in the same manner. 

NO

>> The specification of the control unit removed may be incorrect. Check the part number and the

specification. 

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

U0300

CAN COMM DATA
(Internal Control Module Soft-
ware Incompatibility)

When the ignition switch is ON, the data length 
transmitted from each control unit is shorter 
than the specified length and the status contin-
ues for 2 seconds or more. 

Control unit other than TCM