DTC Troubleshooting: U1280
DTC U1280: Communication Bus Line Error (BUS-OFF)
DTC Description
DTC
U1280 Communication bus line error (BUS-OFF)
  

NOTE:
If you have any loss of communication DTCs for the PCM, troubleshoot those DTCs first.
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
1.
Problem verification:

Problem verification
?1.
Clear the DTCs with the HDS.


?2.
Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.

?3.
Wait for at least 6 seconds.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
U1280 Communication bus line error (BUS-OFF)
  

Is DTC U1280 indicated?

     
YES
     
     
     
     
NO
     
     
     
Intermittent failure, the system is OK at this time.?