I replaced the passenger door shell recently and transferred a functional window regulator into the new door. The power mirror and lock work, but the window regular does not, it doesn't even make a sound when I press the switch. Any ideas?

 

try power to the motor to see if its functional, then check relay

 

Also check for a broken wire where the wire harness passes from the cabin into the door.

 

All cabin wires to the door are in tact, unspliced, and the other power options on the door operates. The window motor should very much be functional as it was a few hours prior to the swapping of the door shell.

Where exactly is the relay located? I'm trying to follow the wires that plug into the window motor but they are very hard to see inside the door.

I also took the motor + window slider out, replugged it into the harness but it still doesn't work.

 

If the driver's door power window works, then the relay is fine.

You can't always see a broken wire. You need to test the three power window wires at the passenger switch with a multimeter.

 

Check the ground

 

The relay is good then, thanks Ron. I'm willing to bet those 3 harness wires are OK too. The door seems to be very clean, nothing out of the ordinary from the looks of the wires, and def the first time stripping.

Where? There's a ground connected to the harness, part of the 3 wires, but that runs with all the other power options which are fully operational.

 

Why speculate? Test them for continuity and voltage. You'll likely be surprised by what you find.

 

Correction, there are only two wires that plugs into the motor...

Swapped out the harness and now it works. Thanks all.