power window relay location

I am new to Tacoma World, thanks for the opportunity. Interesting issue with my 2000 Tacoma 4wd. Power window quit going down on passenger side. Have had the switches checked and motor checked and regulator checked and here is where I'm at, the window will go up and down like crazy as long as I have a 12V jump pack connected to my battery. Take it off and it will not work properly. Weird thing is the truck is having no battery issues. Starts great, runs great, everything else seems to work fine. Tech says it must be a weak relay but I cant find its location to change it. Wire diagram says there is only one but doesn't tell me where it is and after standing on my head for an hour i give up.
Really appreciate the help or suggestions, may not be the relay, idk.
Thanks

 

Module is in the driver side kick panel. Mine is a green box you cant miss it near the floor.

Make sure all fuses are good.

 

Dcmotors, did you ever find the location of the power window relay? I am also looking for the location.

 

My diagrams show it built into the master switch?