Honda Fit door lock actuator problem - Part I

In this video I take the interior panel off the drivers door on my 2009 Honda Fit. The door locks cycle over-and-over whenever you lock the door.
What I'm hearing is that one of the doors can't tell it's locked so it tries to 'fix it'. This happens when the door auto-lock on takeoff or when you lock the doors with the key fob thingy and walk away.
I experimented with removing fuses and found that with one pulled everything worked except for the driver's door itself (so I had to lock it manually with the key). That told me I had to replace the drivers door locking actuator unit. I ordered it online and while waiting for it, the lock cycling noise returned :-(
So anyway, back to the drawing board on that one but at least I can 'stiffen-up' the armrest on that door because the plastic cracked.

[@mewoosh]

Okay, so, the issue here is that one of the sensors can't tell if its door is locked. The sensor must be part of the lock actuator unit. I'm not sure why I presumed it to be the drivers door at first aside from the fact that it would be the most worn out (statistically).
After pulling some fuses (which I'll detail in the follow-up video) I kept thinking I'd licked it but then the relocking sound would creep back in. Last night I heard it start up again when it was only the driver side doors that were active.
Since I already have the replacement (and it's only $40) I'll just install it and see if that solves it. If not then... Hmmm... not sure but I'll probably wind up replacing all 5 of them. That's cheaper than having it inspected by Honda if I presume my time to be worth nothing ;-)