ORIGINAL: patternwannabee
Sounds like your switch harness is the problem.
See if you can check the resistance (with an ohmmeter) of the connections in the switch harness.
If this is the problem, replace it. Don't bother to repair it. It's a critical component in your system.
And the cheapest part in the system. I would also cycle the battery if you can and see where it cycles at. Its good to do that at least once or twice a season.