Several years ago, my dealers washed bikes after a service or repair. They used pressurized air to dry them off This became an issue, as it forced water into connectors and there it would slowly corrode and begin a host of electrical issues. Many dealers stopped due to customer issues and arguments about the air pressure and the issues they found it caused. I get this info from my brother who owns Harley Dealership in Connecticut. They found some mold and/or corrosion and with electronics not using high amps, there in lies the problems!