'03 GTP, 135K, front passenger side window stopped working suddenly. Neither the driver's side nor the p.s. switches make it work. No sound at all when I try the switches.

Can someone help me with a diagnostic process? Assume I know very little, and please, if you describe a tool (especially electrical) I really appreciate your being very specific. If we get into schematics I'm in over my head and it's off to the shop.

Thanks