DTC Troubleshooting: U1281
DTC U1281: Auto Light Control Unit Lost Communication With MICU
DTC Description
DTC
U1281 Auto light control unit lost communication with MICU
  

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
U1281 Auto light control unit lost communication with MICU
  

Is DTC U1281 indicated?

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