If all the switches are good (and it is a good idea to clean them) and you've power where it's supposed to be, check the wires that come out of the pillar between the front & rear door.
That's where mine popped out of the braided cover and broke.
Cut the wires, slip on some shrink wrap tubing & re-solder back together. If you have the rear door panel off you can re-adjust the wiring harness so it doesn't bunch up and break again.