danny ... 4/5/2010
2005 Chevrolet Impala Base 6 Cyl 3.4L
All of my windows will not operate all the master switch will do is hum.
Sounds like a problem with the master switch, or possible the relay. Test for voltage at the switch if its there and its just not sending voltage to the windows then replace the switch. If there isn't enough voltage to the switch check the relay.