DTC Troubleshooting: U1281 (91)
DTC U1281 or DTC indicator 91: Lost Communication with MICU
DTC Description
DTC
U1281 Lost Communication with MICU
  

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.
Do the Self-Diagnostic Function with the climate control unit.

?4.
Wait for at least 6 seconds.

?5.
Check for DTCs.
DTC Description
DTC
U1281 Lost Communication with MICU
  

Is DTC U1281 or 91 is Error indicated?

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