F 450 TAIL AND BRAKE LIGHTS NOT WORKING

[primolee]

This is very strange, all of a sudden the tail and brake lights stopped working also the turn signals are doing the fast blinking thing. I have checked every fuse in the truck from under the dash to under the hood, I have looked at all the wiring under the body and the trailer wiring. The turn signals are very dim in the rear and the emergency flashers do work but are also very dim. I did notice that one time when I turned the lightrs on the right rear tail light came on very dim but as soon as I turned on the ignition the tail light went out. Has anyone had a similar condition ? could it be a problem with a multi switch? ANY help would be greatly appreciated. Thank You, Bill