Sounds to me that you have a contact issue with the switch or something. I had an issue with the mirror control switch. The mirror would move left and right, but would not move up and down. I removed the panel and pulled the switch out of it. I then took the switch apart and then cleaned and inspected all the contacts for corrosion, dirt, grime, etc. I use alcohol and Q-tips to clean this kind of stuff with. I will use as many as needed until they are clean after they are wiped across the contact surfaces. After I put it back together it worked fine and still does to this day.
W D Wilson