View Full Version : Headlamps always on (Not DRL)


Trench
10-30-05, 01:58 AM
On my 01 Seville, the headlamps are constantly on. Reason being is there appearently is a malfunction with the Auto Lamp feature. When I have it switched on, my lamps are on all the time. If I turn that feature off, I get the "headlamps suggested" display on my DIC even when it is beyond sunny out.

Could this just be a bad light sensor? Or rather, Photocell. Or something more indepth?

Where do you think I should start? I would like to get this problem corrected mainly because I plan to get HID upgrades and just don't want them runnning constantly. Plus, I of course want everything to operate correctly. :bouncy:

As a side note..I finally got my payment book in the mail for my car. I was quite thrilled. :banghead:

Bonz
10-30-05, 01:22 AM
Hello,

I have been experiencing the same symptoms out of my 98 SLS for over a year now... I also figured it to be a bad sensor / photocell but had not gotten around to troubleshooting it yet...

Unfortunately I don't have a solution for you... All I can offer at the moment is the small comfort that you are not alone and this may be a common problem...

Also, I am troubleshooting another issue at the moment and will look into the headlamp problem while I am investigating the other... I will get back with you as soon as I find more info.

Good Luck,

Bonz

Trench
10-30-05, 01:31 AM
Hello,
I have been experiencing the same symptoms out of my 98 SLS for over a year now... I also figured it to be a bad sensor / photocell but had not gotten around to troubleshooting it yet...
Unfortunately I don't have a solution for you... All I can offer at the moment is the small comfort that you are not alone and this may be a common problem...
Also, I am troubleshooting another issue at the moment and will look into the headlamp problem while I am investigating the other... I will get back with you as soon as I find more info.
Good Luck,
Bonz


Thank you very much, I appreciate the thought.

Hopefully there is someone here who could give us both an idea of the best, or most common, place to start.

Dustin

turbojimmy
10-30-05, 07:43 AM
It's probably the sun load sensor. The "HEADLAMPS SUGGESTED" gives it away. It thinks it's dark out - there's not much else to suspect. The only other thing would be some sort of malfunction in the wiper circuit where it thinks the wipers are on, but I doubt it.

Good luck!

Jim

GM4Life
10-30-05, 10:51 AM
If you have rain sensing wipers, if you have them on your headlamps are suggested to be on. Otherwise it sounds like a bad sensor

sts96
10-30-05, 10:52 AM
My 02 does this also unless the wind sheld wiper is in the off position then it works ok.sts96

Ranger
10-30-05, 12:08 PM
Sure sounds like a faulty photo cell but don't confuse the photo cell with the sun load sensor. The sun load sensor (dome shaped) is for the A/C system. The photo cell is the flat one.

Trench
10-30-05, 12:35 PM
Thank you all for you reply's! Turns out it was indeed the fact I had the outosense wipers on. I feel so cool now. :banghead:

Bah


Dustin

Dadillac
10-30-05, 07:40 PM
This happens to alot of folks (happened to me also), when first getting thier Caddy's. Maybe someone should post a sticky on the subject, as it would help alot of new members.

Don

turbojimmy
10-30-05, 08:32 PM
I did the same thing when I first started driving my car. Since the wipers don't wipe unless they 'see' moisture on the windshield, you don't know that they're on. Now it's the first thing I check when I see the "LIGHTS ON" message during the day.

Jim

Ranger
10-30-05, 10:26 PM
:histeric:Well, maybe a little embarassing but at least it was a cheap and easy fix. You'll feel better next time someone askes the same question and you have the answer.

Trench
10-31-05, 01:03 AM
:histeric:Well, maybe a little embarassing but at least it was a cheap and easy fix. You'll feel better next time someone askes the same question and you have the answer.



True True. :p