I have a 95 4 door blazer and the passenger window behind the drivers door isn't working. I picked up a new motor and before I put it in place of the old I wanted to make sure it was going to work and it didnt. I ran inside and tested the new motor and it works fine. So the window motor isn't recieving any power from the harness so I was wondering what the problem could be. I was told it could be a switch or something but I would like to fix this so please lmk, thanks.

 

Try taking the switch out of the drivers rear window and putting it in the passenger rear window. If that fixes the problem and now the drivers window dont work, then you have a bad switch. If that didn't fix the problem, then you probably have a short somewhere.

 

I tried taking the drivers rear window switch and switching it with the passangers rear window and the passanger rear still worked while the drivers rear didn't. So I dont know if it could be the big multi switch on the drivers door, please lmk, thanks

 

It could be the motor, the wiring, or the master switch. Connect the wire leads from the motor directly to a battery. If it works, then the motor is still good. Then check the master switch to see if you if you are getting voltage coming out of it.

 

Thanks for the help, I got a new motor a week or so ago and I went to test it inplace of the stock one so when I did that I didn't have the switch in and thats why it didnt work lol. I just swaped the old with the new and the window works great so thanks again for the help