It sounds like bad wiring, either a bad connector or a bad ground. When it is dry it does not connect but once it gets damp the connection works and everything works.
Not going to be real easy to find but you could start by taking a spray bottle and spraying one area of connections at a time until it suddenly works. I would start at the transmission and its connections and grounds as that seems to be the center of the issue.
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Saturday, September 23rd, 2017 AT 5:15 AM