I have a 2003 Mercury grand Marquis, I always have my lighting set on automatic, but for some reason my lights from the cluster and exterior begins to flick on and off every time I turn the wipers?
It could be the LCM (lighting control module) There was a recall on these, Sometimes Ford pays. There are people who rebuild these on ebay and other places. I had to do mine. Others on here know more about it.
Look at the answer by RatPuppy on a 2003 LCM question. Ford may cover it.
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