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  #1  
Old 04-10-2010, 06:39 AM
torxxx torxxx is offline
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weird headlight issue

92 Svx just started having weird headlight issues. I did the 9005 trick for the low beams about 2 weeks ago. I dont think it has anything to do with the light issue I'm hhaving now though. Headlights stay on, with key off and headlight switch off. When it first happened, if I put the headlight switch on just parking lights, the headlights would stay off normally with the engine off. Tonite, only way to get headlights to shut off was to pull the relay's out.

Has anyone else had this issue? I'm thinking multifunction switch is bad on it, but not sure. I need to get it fixed though. Any advice is appreciated!
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Old 04-10-2010, 09:21 AM
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Re: weird headlight issue

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Originally Posted by torxxx View Post
92 Svx just started having weird headlight issues. I did the 9005 trick for the low beams about 2 weeks ago. I dont think it has anything to do with the light issue I'm hhaving now though. Headlights stay on, with key off and headlight switch off. When it first happened, if I put the headlight switch on just parking lights, the headlights would stay off normally with the engine off. Tonite, only way to get headlights to shut off was to pull the relay's out.

Has anyone else had this issue? I'm thinking multifunction switch is bad on it, but not sure. I need to get it fixed though. Any advice is appreciated!
Left and right have separate relays, so that it is unlikely that both could be sticking on. Both relays are switched by a single circuit to ground via the lighting switch and the dimmer/passing switch. A faulty lighting switch appears to be most likely, as you have suspected. There is a third relay in the high beam ground circuit controlled by the ignition switch, but this would not cause your problem.

However, what is this 9005 trick you mention? A short to ground within the headlight circuit would cause the problem. Did you upset the original wiring in any way?
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Old 04-10-2010, 09:39 AM
torxxx torxxx is offline
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Re: weird headlight issue

none of the wiring was touched. the 9005/9006 trick, u take a highbeam and cut off the two tits in the connector so that the low beam headlight connector will accept a high beam bulb. Makes your low beams brighter. and its only a 10 watt difference

I swapped out relays last night before it got dark and cold outside, and that didnt change anything either.

Its either got a melted wire at the relay or a bad switch.
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Old 04-11-2010, 05:34 PM
torxxx torxxx is offline
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Re: weird headlight issue

Drove the car during the day yesterday cuz I hate driving my lifted wagon around town. I put the old low beam bulbs back in and been driving without the headlight relays in praying I dont get stuck anywhere when it gets dark lol.

I did notice some stuff going on differently with the car. It did have an Autostart installed until all this weird crap started happening. I removed the autostart myself and the installation was actually professionally done.

Anywho, I heard a weird beeping that I've never heard come from this car before. Like a security system going off. I'm wondering if this headlight staying on issue is a security system fault. I could have accidently tripped the sec system in the past few days and not known it. My horn presently doesnt work, and I removed a weird black box from up front of the car that has 12v wiring going to it, so I'm wondering if some of the stuff that I removed was the sec system stuff and the headlights staying on is a symptom of the securty system being activated.


Anyone know the specifics on the OEM sec. System?
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Old 04-11-2010, 06:30 PM
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Re: weird headlight issue

have you tried to use your factory Service manuals?
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Old 04-11-2010, 07:01 PM
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Re: weird headlight issue

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have you tried to use your factory Service manuals?
Be very sure that I have when advising him.

It looks like everything could be stuffed up, due to after market stuff and idiots who installed same. Very difficult to analyse from the other side of the planet.
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Old 04-12-2010, 04:02 AM
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Re: weird headlight issue

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Be very sure that I have when advising him.
there is another reason I asked him this...call it an "inside joke"
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Old 04-12-2010, 05:48 AM
sowise sowise is offline
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Re: weird headlight issue

Very hard to say since he mentioned it had an Autostart installed previously. We don't know what was tapped in or where, let alone what accessories were linked to the aftermarket security system. It is possible that with the removal of the autostart there is now a break or open in the horn circuit and headlights may be on by default just hard to say.
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