Flashing lights?

So bowling along in bean tonight the lights in the window control panel and door lock switch unit started flashing. Did it all the way home!
Passenger side was ok.
Any suggestions?
All the interior lights that are controlled digitally over CAN are commanded by the instrument cluster, not the CCCU. :)

If there is no loose connection, then I'd suggest the door control module could be to blame.
Thanks Tom!

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