Your remote control circuit panel may be "busted". There is a long history of problems with some of the remote control units (usually installed in the front storage compartment) dropping one of the circuit grounds. While this may not be your problem, you might want to do some "sleuthing" on the remote control unit.
You can read about my problems and how I fixed them in this thread. My post #9 has photos and a detailed procedure for bypassing the remote grounding issue.
http://www.keystoneforums.com/forums...remote+control