I have a 1993 GT. Both power door locks are stuck in the unlocked position. When I try to lock the doors with a key or by pressing the lock button , neither side will lock. I checked for current at the doorswitches and both sides are hot. I don't know if the problem could be a relay switch or if the car even has one or where it might be located.

Thanks for any info you can provide

 

I would pull the fuse.
Then try the key.
If it works, then there is a short in the
wireing keeping the power applied to the
unlock relay.
If the power is left in this mode you are
just waiting for the enevitable fire.

If the key won't work when power is removed
you might have a mechanical blockage in both doors.

 

It could also be the actuators. My passenger side is froze, and will not work. You can purchase a kit to replace them for 60.00. The kit will do both doors. I dont remember the vendor, but you can check the first couple of pages in MM&FF, middle of the page.