On a 1998 Nissan Sunny the front passenger window goes down but not up using the switches on the passenger's and driver's sides what is wrong?

Answer 1

On Nissans, the passenger and both rear door window switches get their power through the master (drivers door) switch. First thing to try is playing with the master switch. Move the master switch button that is inop to the position that is not working and move it around with your finger. If this don't work, remove the master switch and clean the contacts, maybe with some silicon spray and then test if you have power leaving the switch. If not, the switch probably needs to be replaced.

Have seen this happen on other cars and it has been the passenger door switch. It is most probably a double pole double throw switch and both sides of the switch need to work to make the window go both ways. Check the connections on the back of the switch and/or interchange it with one from another door. I think most likely a wiring fault at the passenger door switch and the drivers door switch have the same fault. Ken