On my 1996 Chevy Blazer I can bring all my power windows up and down from the driver’s side control, but if I try to use the switches under each window, none of them work, (the passenger side front window will go up via the switch, but not down). Does anyone have any ideas what I might need to do to make these switches functional again?

Window lock is turned off.

Thank you

 

Everything runs through the master switch. If you do not have power at the other door switches, you probably have a malfunctioning master switch.

 

Mine use to do that also all I did is remove the master panel and it worked fine, and has since. Just pry from the part the drivers side control set near the windshield and it should come right out. You can check that everything is connected well. Maybe you will have the same luck I did and just taking it out fixes it.

 

Very true. Some GM master switches like to have connection problems on the output to the rest of the door switches. I had to do this same kind of a repair on my parents old '98 STS. I went through the wiring diagram to find each wire that lead elsewhere and then found one terminal in one of the connectors that was spread apart like someone had forced it on incorrectly at some point. Definitely worth checking out.