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headlights with ignition on; 1999 GMC Savana
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fat-katie
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Nov 11, 2021, 5:39 PM
Post #1 of 6
(779 views)
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headlights with ignition on; 1999 GMC Savana
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1999 GMC Savana.
I purchased this car years ago and has done me well. When I first got it, the headlights would come on with the ignition. I tried pulling fuses.... blah blah. I couldn't fix it. Then it went away... for years.
Last month the lights started coming on again.
The only activity between then and now was battery work. I installed a battery cutout (for camping configurations - use the aux battery and not the car's battery)
After an irritating month lights on ignition, it went away. I did nothing.
Any ideas what's going on? Is there a secret option I tickled?
One thing to mention is that the column electrical ignition switch seems to fail to cut the aux power sometimes (I assuming it the switch body). I pulled the radios until I have time to replace it... if that is indeed what it is.
Thank you
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 11, 2021, 6:52 PM
Post #2 of 6
(772 views)
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Re: headlights with ignition on; 1999 GMC Savana
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Are you sure it's not just Daytime running lights?
Are the dash lights illuminating also?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Nov 11, 2021, 6:53 PM)
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fat-katie
User
Nov 13, 2021, 7:05 PM
Post #3 of 6
(722 views)
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Re: headlights with ignition on; 1999 GMC Savana
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No, just the headlights. When you actually purposely turn on the headlights they become subtilely brighter.
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fat-katie
User
Nov 14, 2021, 2:02 PM
Post #5 of 6
(698 views)
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Re: headlights with ignition on; 1999 GMC Savana
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I'm looking at the shop manual and found a reference to the DRL system, supposedly on export models. I guess mine may be Canadian?
Any how, it looks like I can just pull the DRL relay and end this. It, or some other system part, must have been intermittent. Wish me luck.
Thanks for the info.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 14, 2021, 2:10 PM
Post #6 of 6
(693 views)
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Re: headlights with ignition on; 1999 GMC Savana
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DRL is mandatory in Canada so if it was built there it will have them. I think they were standard in all GMs around those years. I had a 98 Blazer that had them.
If you apply the parking brake just enough to turn the brake light on, they should go off.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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