I have an 05 ext cab. I bought it a week ago. When I hit the remote lock, the pass side works great. Both windows work great. The mirror control works great for pass side. So does the lock and unlock on the pass side. But the mirror on driver and the lock act does not. I have taken the door apart and I'm getting no juice to the actuator.

I have taken a look at the main fuse relay box under hood. I do not have individual relays for left or right side. Nor in the inside fuse box. Every fuse I can see that might be a lock, is good.the inside fuse block has a 12 wire plug that goes to the door. I have unplugged that and tested to see if any juice is coming from the wire. I have hot on two wires all the time. But non of them go hot when I use either the door lock or remote.

 

Sounds like you're on the right track.

Try looking up a wiring diagram for your truck in either a haynes manual from the parts store, or sometimes local libraries have services like Mitchel's Ondemand or Alldata. I think that if you can get some wiring diagrams to see how the circuit should work, you will have the problem figured out in no time.

 

I would have to guess you may possibly have a couple of broken wires in the rubber boot between the door jam and the door (at the hinges)