Door handles don’t work

I had a similar problem with the rear passenger door in my 1994 Ford Explorer, would not open from the outside or the inside. I had to remove the inside door cover and manually release the lock, then replace the entire locking system in that door. Once the door is open, do not lock it again as it will stay lock. You may have to do the same with the front door.This was a common problem with these vehicles, which use the same lock in all models. The lock designed was changed in 2001, I think.

How do I get back end door and window open all other doors and windows work is there a fuse that works them if so where is it located