I have a BX1500. The four lights on the rear of the tractor will not turn off, turn signals do not work and the emergency flasher does not work. The headlights operate properly from the headlight switch. The rear lights seem unusually bright. There was a small amount of water on the switch panel. Not sure how it got there, the tractor is always covered. I cannot find a wiring diagram for this tractor, so i do not know where to start looking for a problem. Any help will be greatly appreciated.