re: car question: passenger front window not working on driver door controls

If one switch works and the other does not, its likely a bad switch. Some are super easy and cheap to replace, others are not.

I just did it on my wife's car. Our two rear seat switches would not work and the driver's switch worked intermittently. Replaced the driver switch and they all work now. So its not always the bad switch, must be a relay or whatever in the main switch.