acbanuchi

Does anybody know where the relay is located for the power door locks on a 1991 f150?

Both power door locks stopped working at the same time and I can't get them working again. I changed the fuse with no result. The only other thing that I think it could be is the power switch relay. I bought a new one, but I can't find where the old one is located so that way I can install the new one.

Please help me locate it! Thank you in advance!!!