have touched nothing it started about a week ago Have reset twilight sen no change 
Wierd problem with Fog Lights....???
Thread Starter
Racer
Joined: Apr 2003
Posts: 349
Likes: 0
From: Chicago IL
Wierd problem with Fog Lights....???
Guys,
I just noticed something very strange. When I turn my parking lights on (the first click) my headlamps open with the lights off????
I recently replaced the headlamp gears due to having to bad headlamp gears but I can't think that this would have anything to do with it.
So again, I can't just turm my parking lights on and run the fog lights without the headlamps opening. Any help would be great...
Raz
I just noticed something very strange. When I turn my parking lights on (the first click) my headlamps open with the lights off????
I recently replaced the headlamp gears due to having to bad headlamp gears but I can't think that this would have anything to do with it.
So again, I can't just turm my parking lights on and run the fog lights without the headlamps opening. Any help would be great...
Raz
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
sounds like the headlight switch is going bad. There's probably a small connection problem. The headlights will normally remain up but off if you turn them on, then back to the parking light position. What I believe is happening is that there's a momentary connection between the parking light position and the headlight connection when you're turning it on.
to confirm this, have someone stand in front of your car and see if your headlights illuminat at all (even for a fraction of a second)
to confirm this, have someone stand in front of your car and see if your headlights illuminat at all (even for a fraction of a second)
Racer
Joined: Jan 2003
Posts: 428
Likes: 0
From: Eagle River AK
St. Jude Donor '10, '13
Ever since I put HID's in my fogs mine do the same thing...
I know a couple of you have said you have done nothing to your cars but maybe they are related or at least this may provide another clue.
I know a couple of you have said you have done nothing to your cars but maybe they are related or at least this may provide another clue.
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Tech Contributor
Joined: Dec 2003
Posts: 19,384
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I've heard a few guys mention that problem in the past. Its often when a headlamp motor is about to quit. If you just replaced them its unlikely to be the motors. The switch is always a possibility as suggested. I'd start by checking if its a connection problem or a grounding issue.
Theres a TSB out for erratic headlamp movement on the drivers side. The procedure is to check the insulators on the motors. It may be worth making sure you didn't disturb them when you did the motor change. Although the symptoms are different its easy to check. Here's the pic. The insulators are the washers marked #2
If not, the next thing I'd check are the grounds on the headlight motors.
Hope you find it.
Theres a TSB out for erratic headlamp movement on the drivers side. The procedure is to check the insulators on the motors. It may be worth making sure you didn't disturb them when you did the motor change. Although the symptoms are different its easy to check. Here's the pic. The insulators are the washers marked #2
If not, the next thing I'd check are the grounds on the headlight motors.
Hope you find it.
Thread Starter
Racer
Joined: Apr 2003
Posts: 349
Likes: 0
From: Chicago IL
If you mean via the DIC, I've never activated the twilight function. Meaning. it's off and has been off. The headlight stay closed upon starting. The problem just seemed to start happening one day.
I did not replace my headlamp motors, I replaced the gears. I didn't even remove the assy, however I did remove the parts listed below. When making the fix, I did unplug the power. Maybe this has something to do with it? I'll try reseating..
Raz
I did not replace my headlamp motors, I replaced the gears. I didn't even remove the assy, however I did remove the parts listed below. When making the fix, I did unplug the power. Maybe this has something to do with it? I'll try reseating..
Raz