DTC Troubleshooting: U1281
DTC U1281: Lost Communication With MICU (MICU Frame)
DTC Description
DTC
U1281 Lost Communication With MICU (MICU frame)
  

NOTE: 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.
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
U1281 Lost Communication With MICU (MICU frame)
  

Is DTC U1281 indicated?

     
YES
     
     
     
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?