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Lighting Forum
Angel Eyes, DDEs, lighted rings, Clear Turn Signals, LEDs, Xenon, HID, or Bi-Xenon. If it lights up and you want to discuss it, post here!

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Old 07-29-2008, 08:10 AM   #1
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Please read, I need help figuring this out!

I have a great 04 330i ZHP car, love it! One small problem is that every other time or so, when I get in the car to drive it, the dash computer tells me I have a right rear light out. I have checked it and no blubs burned out?

The worst part is that sometimes as I drive, the warning just turns off. Is this some secret warning or a bad sensor or something?

I have changed all the blubs and it still happens.

Any ideas or suggestions would be great!

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Old 07-29-2008, 08:50 AM   #2
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This can be caused by two things......Either you have corrosion in the bulb socket. Or you have a bad ground that is fried in your connector.........

First check corrosion in the socket. Just remove the bulb and clean it.......

If that doesn't work, then take apart the two connectors in your taillight. Check the male plug, and see if anything is fried, burnt, melted.....etc.......

If it is, then all you need is a new plug from the dealership. You can either DIY and replace the plug (and add a new ground to the taillight), or have the dealership do it......

This happened to me also. But it happened in both connectors. Thankfully, my car was under warrenty, and they did it for free
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Old 07-29-2008, 01:25 PM   #3
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It could just be a loose wire. Another member had the same problem recently and it turned out to be a loose wire.
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Old 07-29-2008, 01:37 PM   #4
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I had the same problem. I had someone stand back and check my brake/turn lights while I was in the car and they said everything worked. so I tried the "bad ground fix", and still no results.

then I realized it was my license plate bulb that went out. all along, that's all it was. so make sure you check that.
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Old 07-31-2008, 12:02 PM   #5
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one of the filaments on the bulb could be bad or what Monkey said.
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