How do you test the power window switch on a 2000 silverado?

To test the power window switch on a 2000 Silverado, first, ensure the vehicle is in the "On" position but not running. Use a multimeter to check for voltage at the switch by connecting the probes to the switch terminals while pressing the button; you should see voltage when the switch is activated. If there’s no voltage, the switch may be faulty or there could be an issue with the wiring. Additionally, you can test the window motor directly by applying power to it to check if it operates independently of the switch.