Headlight Dim by themselves?
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Joined: Jul 2009
Posts: 56
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From: Kentucky
Headlight Dim by themselves?
Okay, so here is the deal. I have a 99' FRC and I have heard about this setting called twilight sentinel. I searched my DIC screen for this setting, however I don't believe my car has this option. Here is the problem, I can be driving down a dark wooded area where it isn't lighted very well, and every once in awhile no matter whether my headlight are on dim or bright sometimes they dim down a bit and come right back. I was wondering if it may have some fluctuation in voltage, but I have watched my alternator and it isn't dropping voltage, so it is working properly. What else could this be (possibly a voltage regulator, if the car even has one)? Has anyone else encountered this problem? Any help or advice is greatly appreciated.
Thanks -David
Thanks -David
Le Mans Master
Joined: May 2006
Posts: 7,835
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From: Hillsboro OR
Okay, so here is the deal. I have a 99' FRC and I have heard about this setting called twilight sentinel. I searched my DIC screen for this setting, however I don't believe my car has this option. Here is the problem, I can be driving down a dark wooded area where it isn't lighted very well, and every once in awhile no matter whether my headlight are on dim or bright sometimes they dim down a bit and come right back. I was wondering if it may have some fluctuation in voltage, but I have watched my alternator and it isn't dropping voltage, so it is working properly. What else could this be (possibly a voltage regulator, if the car even has one)? Has anyone else encountered this problem? Any help or advice is greatly appreciated.
Thanks -David
Thanks -David
Thread Starter
Advanced
Joined: Jul 2009
Posts: 56
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From: Kentucky
Thanks for the info guys, I'll definitely have to check my ground wire and check all positive of my connections. Although now that it has been mentioned I believe it could possibly be the ground from the looks of it. I'll give it a shot and let you know how it worked out.
Thanks again -David
Thanks again -David
Le Mans Master
Joined: Sep 2010
Posts: 5,520
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From: Long Island NY
I have experienced that too. In addition to the headlights, the dash lights would dim too, not all the time, just once in a while. Since replacing the battery about two years ago the problem has not returned. The thing is it may not have been the battery but maybe a dirty/corroded terminal, loose terminal, who knows. When I replaced my battery I cleaned all the connectors and made sure the terminals were nice and tight, something I never checked on my original battery. May or may not be your problem but certainly worth a look into.
