Where is the computer modual for the Mountaineer, I need to get the door lock codes off of it,

Their website is down right now, but if you go later you might be able to get that info.

Its: autozone.com/repairinfo/ or something like that.

It may not have your year model as this info is not complete there. but its free

The Security Module on my 2002 Mountaineer is located directly behind the rear passenger door. you can pull off the weatherstripping around the door and pull the panel out far enough to stick a dentist mirror and flashlight in and read the code off the cover of the module. it's located right about the level of the bottom of the door glass.