2004 nissan titan electric door lock on drivers side doe not work. Already replaced acuator.

SOURCE: No electric windows, mirrors, or door locks

Look in the Engine bay fuse box at Fuse #12 this should be for the power windows. If this checks out OK, it could be a fault with a bad ground wire in driver's side door harness. You should be able to pry the runbber boot from the drivers door, and check the larger Black wire that goes through it. These have been known to break after a few years use. If it is the cable, cut neatly, strip the ends anu use a crimp splice. Hope this is a quick and easy fix for you. If it helps you solve the problem, Please take a moment to rate as Fixya! Thanks.

SOURCE: 2004 Jeep Grand Cherokee driver side power windows do not work

I had the same problem with now power to windows, mirrors and seat. The common soulution is the orange and or black wire in the boot have broken between the door and post.

SOURCE: power door locks and drivers window have failed on 2004 colorado

I had the same problem to the T. I look online for all the same solutions and I can only tell you what worked for me. Actually what I think worked, HAHA! I went out to my truck and unplugged both battery terminals from battery and placed them together to supposedly reset the electrical system, "so I was told." After this for about 20 min or so, I went back out and in this order; re-installed positive terminal followed by negative terminal to battery. After this I checked locks and windows and surprise they worked. I've seen a lot of people say that all they did was wait and they worked later, so maybe it was that and not what I did, but who cares, they work now. Give it a shot and if it works for you, GREAT let me know, I HATE CHEVY CAUSE OF THIS......they wanted me to pay for a stupid diagnostic before they would help me........well screw you I fixed myself. LATER

SOURCE: door lock on 2005 -3500 truck

Yes Admin,
This is what I found out. The problem was with the power lock portion of the part (siezed). It is also sealed and unserviceable. The good news is that the part was in stock at the dealer for around 65.00. Actually pretty amazing considering how many parts there are to the device. After disassembling the door three times (once to diagnose, once to take apart and disable the power lock function, and one last time to swap out mechanism) I became fairly quick at it. If you have this problem, just go buy the part and don't mess around. Oh yeah-you'll need a torx bit to get started.....

SOURCE: Power windows inop

a brake in ur wires in the door,on a 04 grand i had the same problem,in the wire harness were the junction box is rust had broken one of the male prongs