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-   -   Bizarre Headlight Problem (http://forums.pelicanparts.com/porsche-911-technical-forum/971469-bizarre-headlight-problem.html)

Pstallo 09-24-2017 10:41 AM

Bizarre Headlight Problem
 
Just recently, when I turn on my headlights, the wipers turn on with it. Sometimes the wipers will spontaneously turn off, sometimes they stay on until I turn the lights off.

I have LED headlights, but they've been in for over a year and it's never happened before.

Has this ever happened to anyone else and how in the world would the two even be related?

uwanna 09-24-2017 11:57 AM

Had a similar problem with the wipers coming on sporatically, except mine did it when I used the turn signals. Did a lot of trouble shooting with a power probe, and found it was a ground loop problem. The cause was
a poor ground on a corroded wire in the "wire stack" located under where
the battery negative cable mounts to the body. Cleaned up all the connectors and the problem was fixed! Take a look, clean up the connectors and you might fix it. Ground loop problems can cause many
unexplainable things.

Pstallo 09-24-2017 12:43 PM

Ahh, you know, I had removed an old stereo wire from the big negative mount near the battery a couple of days before I noticed it! I could have messed with the connections without realizing it.

I will definitely start there! Thanks for the tip!

Pstallo 09-25-2017 01:52 PM

That was it! Cleaned up the connectors on the main ground terminal and all is right with the world of headlights and wipers!


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