Nissan Versa Sedan. Manual — part 857
TM-334
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F11A]
U0073 COMMUNICATION BUS A OFF
DTC/CIRCUIT DIAGNOSIS
U0073 COMMUNICATION BUS A OFF
Description
INFOID:0000000009268121
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:0000000009268122
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 “U0073” detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009268123
For the diagnosis procedure, refer to
LAN-15, "Trouble Diagnosis Flow Chart"
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0073
Control Module Communica-
tion Bus A Off
TCM communication blockage lasts for 2 sec-
onds or more when turning ON the ignition
switch. (Communication not established.)
Harness or connector
(CAN communication line is error)
U0100 LOST COMMUNICATION (ECM A)
TM-335
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F11A]
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U0100 LOST COMMUNICATION (ECM A)
Description
INFOID:0000000009268124
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:0000000009268125
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 the engine and wait for at least 5 seconds.
2. Check the first trip DTC.
Is “U0100” detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009268126
For the diagnosis procedure, refer to
LAN-15, "Trouble Diagnosis Flow Chart"
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0100
Lost Communication With
ECM/PCM A
When the ignition switch is ON, TCM is un-
able to receive the CAN communications
signal from ECM continuously for 2 sec-
onds or more.
• ECM
• Harness or connector
(CAN communication line is open or
shorted)
TM-336
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F11A]
U0140 LOST COMMUNICATION (BCM)
U0140 LOST COMMUNICATION (BCM)
Description
INFOID:0000000009268127
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:0000000009268128
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
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009268129
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)
U0141 LOST COMMUNICATION (BCM A)
TM-337
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F11A]
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H
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U0141 LOST COMMUNICATION (BCM A)
Description
INFOID:0000000009268130
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:0000000009268131
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
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009268132
For the diagnosis procedure, refer to
LAN-15, "Trouble Diagnosis Flow Chart"
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0141
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)
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