Diagnosis procedure
1.Check connector
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness for open circuit
Check the resistance between the data link connector terminals.

Is the measurement value within the specification? Yes (present error)>>check can system type decision again.
Yes (past error)>>error was detected in the data link connector branch line circuit.
No >> repair the data link connector branch line.
A-bag branch line circuit
Eps branch line circuitPower supply and ground circuit
Av control unit
Av control unit : diagnosis procedure
Regarding wiring diagram information, refer to av-331, "wiring diagram".
1.Check fuse
Check that the following fuses are not blown.
Are the fuses blown?
Yes >> replace the blown fuse after repairing the affected circuit. ...
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 ...
P0500 VSS
EXCEPT FOR M/T MODELS
EXCEPT FOR M/T MODELS : Description
ECM receives vehicle speed signals from two different paths via CAN
communication line: One is from the
ABS actuator and electric unit (control unit) via the combination unit and the
other is from TCM.
EXCEPT FOR M/T MODELS : DTC Logi ...