I hope the quality of this pic is good enough to zoom.

 

Thanks for all the help. I’m gonna start with cleaning the contacts first, then go from there

 

OK I see where signal comes from the master switch to the door switch.
But my question is. What is the signal ?
The other thing is the "logic" ?
Do the switches have a printed circuit board in them ?

 

That pic worked well, I'll try the whole page.

 

OK so the "signal" is battery voltage.
Two places as I see it, BCM and under hood fuse blocks.

 

thanks this picture will help narrow the problem down

 

I don't know why RJ's diagram says 2008 and later, it is 2008 and earlier.

The Master switch in the circuit is the lock button (not on later cars or SS)
What year car?

Here is a pdf for 2010:
Attachment 47665

 

It's the same diagram. Haynes may have been unsure how to label it. Some 2008 were like this(SS).

 

Don
Looking at your diagram 12v/30amp from the fuse under the hood (Dark Green) has a junction splice that goes to all four window switches.
But the 12v/20amp from the BCM (Yellow) only goes to the drivers master switch and the front passenger door.
Can you explain the logic of this ?
Thanks.

 

That's RAP, it goes to both front doors.