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Old 09-11-2006, 05:13 PM   #6
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A xenon headlight failure could be attributed to a multitude of problems. The best thing to do is narrow it down to either the bulb or ballast. Swap the bulbs from one side to the other to see if the problem switches sides. If so your bulb is out. If not, you may have a bad ballast or even a connections issue.
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