wippers come on by them self
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it could probably be something to do with your multifunction switch in your steering column. I was having turn signal problems, and I took it apart and cleaned the contacts. Have not had any more problems yet. The switch contains wipers, turn signals, high beam, and hazzard contacts. Need a phillips and some torx bits to take apart. The electrical connecters are a pain to get off. And look at it carefuly while you take it apart, I had to take it apart several times to get it right.