Right and left rear windows will not roll up
I have a 1989 chevrolet suburban. I just replaced the window motors on the rear
passenger doors, and before I completed reassembly I tested each side. Neither motor
rolled back up. I traded out switches from the front right, left rear, and right rear doors
and the same result. I don't know what to do next to fix this problem. 2 out of 3 of the
switches are fairly new so I seriously doubt they are faulty. Are they all ran through the
driver door window switch? If it were faulty would that cause the rest of them to do the
same? This vehicle is pretty old, the wiring and plugs are different from a more modern
car which I'm more familiar with so I'm not sure how to proceed. Thank you all for your
thoughts and advice.