Nissan Sentra Service Manual: U0155 Lost communication (IPC)
DTC Logic
DTC DETECTION LOGIC
| DTC | CONSULT screen terms [Trouble diagnosis content] | DTC detection condition | Possible causes |
| U0155 | LOST COMM (IPC) [Lost Communication With Instrument 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. |
|
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
- Start the engine and wait for at least 5 seconds.
- Check the DTC.
Is “U0155” detected? YES >> Go to TM-156, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
For the diagnosis procedure, refer to LAN-16, "Trouble Diagnosis Flow Chart".
U0300 CAN COMMUNICATION DATA
DTC Logic
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | Possible causes |
| U0300 | CAN COMM DATA (Internal Control Module Software Incompatibility) | When the ignition switch is ON, the data length transmitted from each control unit is shorter than the specified length and the status continues for 2 seconds or more. | Control unit other than TCM |
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
- Start the engine and wait for 5 seconds or more.
- Check the DTC.
Is “U0300” detected? YES >> Go to TM-157, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
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
- Remove one of the control unit replaced
- Assemble the old control unit before replacement.
- Turn ignition switch ON, and wait for 2 seconds or more.
- 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.
U0140 Lost communication (BCM)
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
[Trouble diagnosis content]
DTC detection condition
Possible causes
U0140
LOST COMM (BCM)
[Lost Communication ...
U1000 Can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real-time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excelle ...
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Diagnosis system (BCM)
Common item
Common item : consult function (bcm - common item)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Intelligent key
Intelligent key : consult function (bcm - intelligent ke ...
Tcm branch line circuit
Diagnosis Procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose
connection (unit side and connector
side).
TCM
Harness connector f50
Harness co ...
