Problem 1 sounds like bad door lock motors, problem 2 can be a bad key or ignition switch.

 

Problem 1 sounds like bad door lock motors

How do I identify which door lock motor is bad? No door lock motors make an odd sound when opening/closing.

problem 2 can be a bad key or ignition switch.

We have started using the spare remote and key. Hopefully that sorts this problem.

Thanks.

 

my AFTERMARKET has been acting weird as well.
i think its just not getting enough power.

when my car is running, it locks and unlocks perfectly.
but when it is not, some doors lock and some doesnt.

 

gt88 I have the same problem with my 96 Corolla Conquest. I got a new ignition barrel and key, my belief was that it was worn out. My key wouldn't turn only once in a while and after some wiggling it worked but eventually it wouldn't turn at all. I also found having the steering lock engaged made the problem worse, so maybe always try parking with the wheels straight, it helped me for a while. I am also having the same problem with my keyless entry. I can't lock the doors at all, and when I try the car beeps like it does if you try and lock it and a door is still open/ajar, however none are. I tried my spare remote and it didn't work either. However, once in the car I can still turn the immobiliser off by clicking the button on the remote, because of this I am leaning towards it being something to do with the doors or as someone suggested earlier the door lock motors.. The car is not my favourite at the moment, its started to have a few niggling little problems, but then why wouldn't it I guess