Can you post a picture of the plug? My first guess
would be for fog lights that your vehicle doesn't
have. Many times, to cut costs, vehicle
manufacturers will use the same wiring harness for
vehicles with or without certain options. For
example my 93 Caprice had a plug hanging loose
near the windshield wiper washer fluid tank. It was
for the low fluid level sensor for the fluid monitoring
system that my car didn't have. I bought the car
brand new by the way so I knew nothing had ever
been plugged into it. Hope that helps! Jim
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