My suggestion is to seal all your electrical connections with di-electric silicone grease. I believe that has cured the wet weather problems of several members in the past. I wash my bike regularly and have had no problems. In my opinion, this is something that should be addressed because if you have problems when washing with a hose, what's going to happen when you're running down the road and get caught in a hard rain? I'd think 60 mph rain will get into more sensitive places than a water hose ever could.
