You still have two actuators (one in each door). It is possible that the switch has a short, but I've seen this before with Honda power door locks. If you have keyless entery, then you have central locking. They keep clicking and sometimes start to click for no reason at all, right? Here's a schematic of your power door lock system and rough estimate on prices:

http://www.hondaautomotiveparts.com/...gry5=DOOR+LOCK

You should still have a good dealer look at this. There may be a technical bulletin on your car. I doubt a recall, but I have seen this happen. Ref.#'s 5 and 27 are what I'm refering to. Again, have your dealer confirm this before you buy the parts (electrical is non refundable).