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2000 impreza rs
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I have l.e.d all in my car dome light, license plate, corners lights, my rear blinkers and reverse lights. I have the relay for the rear blinkers to fix the hyper blinker. I went to instal the led blinkers for the front and it doesnt even light up. The stock bulbs lights up fine but u but the leds in and they don't. Any ideas guys?
 

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needs more cowbell
95L, 07 2.5i, R6
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9,316 Posts
This, pretty much. The front bumper lights are reverse polarity to the rest of the car bulbs. On the front sockets, the outside is positive and the middle is negative. Its kind of strange, but all you have to do is cut the two wires and reverse them. Of course its a good idea to solder and heat shrink or wrap in good 3m tape.



This might sound silly, but did you try it the other way around? I had some LEDs that only worked one way but not the other.
This works when you have a type of bulb like a bayonet or 194 with prongs but the front bulbs are 1156 and have one outer shield and one center conductor...you can't physically reverse the bulb but you can cut the wires behind the socket and swap them.
 

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I also had big problems with the lights of my car. I also have a Subaru, and I also didn't know about all this stuff as the front bumper lights have the opposite polarity compared to the rest of the car's bulbs, and all you have to do is cut the two wires and reverse them. You can't imagine how many LED bulbs I bought. I didn't understand why nothing worked. But after talking to a specialist, he told me the same thing about Subaru cars. It was also very complicated for me to install interior led car lights, and it seems that there is about the same tactic as for the front bumper lights, meaning the outside is positive and the middle is negative.
 
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