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  #1  
Old 12-21-2006, 10:11 PM
X2Xtreme360 X2Xtreme360 is offline
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brake light problem

I replaced all of my brake lights today (4 brake, 2 turn signal). On the driver side, one of the brake lights doesn't work at all when the brake is depressed. The lights are supposed to be dim with the lights on with one filiment working and when the brakes are depressed the other filiment is brighter, hense the brake lights. Well, when the brake is depressed, the filiment that's supposed to stay on at all times (the dim one) also goes out so the one bulb just goes out completely. I tested other bulbs and they all do the same thing. What could the problem be? A faulty socket?
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Old 12-22-2006, 04:23 AM
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Re: brake light problem

follow the black wire that comes out from that section and make sure it has a good ground.
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Old 12-22-2006, 03:16 PM
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Igovert500 Igovert500 is offline
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Re: brake light problem

If you have a multimeter, check the resistance of hte ground, and hte voltage of the other wire(s) on teh known working light. Check for the same voltages and resistances on the broken light. Find your problematic wire. Figure out if it's just a bad ground, broken wire, short to ground, loose wire, etc.

edit, I'm checkin out the manual right now, see if i can find a diagram.

edit #2: Service manual didn't help much. I'm agreeing with jason though. Most likely a ground wire problem. Obviously, if hte other light works, the problem is after the wiring splits for hte 2 lights. Now if the one filament works, then you know that most of the systems works. All you have to figure out is what changes when the next filament is supposed to light up. How is the circuit changed? Because if the original filament goes out, you probably lose the ground. Trace the wire, wiggle it a bit, etc.
__________________
96 3000gt vr4
-K&N FIPK
-Proboost mbc
-Cusco front + rear strut bars
-Greddy type-s
-ATR downpipe
-no cats
-15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly.

Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.

Last edited by Igovert500; 12-22-2006 at 04:51 PM.
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Old 12-22-2006, 09:29 PM
X2Xtreme360 X2Xtreme360 is offline
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Re: brake light problem

Thanks fopr all your help. Yea the manual doesn't help at all. I briefly looked at it today but didn't have much time. Do you know where the ground wire goes back to? I think i'll have to remove the panel in the trunk where the antenna motor is located, but I'm not sure wherer it ends.
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