Nissan Versa Sedan. Manual — part 807
TM-134
< DTC/CIRCUIT DIAGNOSIS >
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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
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)
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< DTC/CIRCUIT DIAGNOSIS >
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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
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
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 >
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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
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
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