When i got my truck the drivers windo motor was shot. Also the cargo light and dome light did not work. After my mechanic fixed the motor, those things worked for some reason. But now i just did the same thing to the passenger side and they dont work again. Can anyone tell me whats wrong? Is it a faulty connection, if so where?

 

First, you need a wiring diagram of that whole system

 

I cant find it

 

Your signature and build thread don't include what exactly your truck is, year and all that. I can't go off just your username.

 

1991 f150 xlt lariat efi 5.0 regular cab

 

could it be the fuses?

 

Sure. First look at fuses.
If the wiring for the not working things has a common path/location, go there and see if there are broken/chafed wires or a harness plug that has problems.