^^^^^^^^^^^^^THIS^^^^^^^^^^^^^^^^
I guess some people just like making things hard for themselves by overthinking things......
As long as the feedback wire is still connected, everything will work as it should except the rear defrost.... Not that hard people.
KISS.... Keep It Simple Stupid.

 

 

 

You need something to complete circuit and take load like a light bulb or something

 

You don't need any load. Most likely you either have an open grid or bad contacts on the slider. I disconnected mine as a preventative measure. The system was in proper working order when unhooked and my indicator lamp still works and the mirrors still heat. If I crack the slider open, the light goes off. You have an underlying issue.

 

 

There are contact tabs that make/break the circuit when the window opens and closes. I suspect yours may be bad. An easy test would be to disconnect both wires on the passenger side and jumper them together. If the indicator light now works (probably will) the problem is in the rear window. I suspect bad contacts getting hot is the cause of a lot of the windows blowing out.

 

So I disconnected the 2 wires from the window on the passenger side, and placed them together to test before I secured them permanently. As you stated the light now works. Does that mean the rear defroster is broke? My power slide window is still working.

I just used some electrical tape and taped the connections together.

 

Either the heating grid is severed somewhere along the path or the slider contacts are burned/corroded. These contacts are not related to the power slide circuit. They complete the heater circuit when the slide is closed and tie all three panels of the heating grid together. Left, center and right.