Drivers side door wont unlock with key

[Moondog]

My drivers side door has suddenly stopped unlocking with my key.
It locks just fine with the key. It locks/unlocks fine from inside the car pulling/pushing the lock thingy. It unlocks fine if I unlock from the passenger side.
I have tried synchronizing the door locks. I looked at the fuses under the rear seat and didnt see any that were blown.

Anyone have any ideas on what happened, or what it will take to fix?

[632 Regal]

IIRC there are a couple micro switches that are activated when you turn the key, I'd guess one is dirty or bad, replace those and the problem should go away.

[CharlesAFerg]

Hmm, I have the same problem but it coems and goes except I can't LOCK. Like I said sometimes it works but its always in these long periods for like 3 weeks where it won't work and mysteriously it works again.
Also, it seems to lock..and then unlock itself other times. Usually these things are not happening at the same time except once and a while, is this related to those switches also? I have been hoping that I don't have to get new locks...
-Charles

[dacoyote]

Hmm, I have the same problem but it coems and goes except I can't LOCK. Like I said sometimes it works but its always in these long periods for like 3 weeks where it won't work and mysteriously it works again.
Also, it seems to lock..and then unlock itself other times. Usually these things are not happening at the same time except once and a while, is this related to those switches also? I have been hoping that I don't have to get new locks...
-Charles

Yeah.. chances are good it's the micro switchs...