Well, the 1160, is for a missing state of health message from the left door control module to the IPC.
Now, as far as concern, not really, as there is alot of state of health messages to the communications line.
Honestly, I would say dont worry about it, unless you are experiencing a functional problems for the LDCM. Such as your memory function not working correctly, or the like.
Pleaseexplain if any of these features are not working correctly, or if any other codes are evident.