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The headlights probably have a bad ground. the alternator is probably going bad.

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โˆ™ 2004-12-02 15:49:05
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Q: Why would the digital radio light fluctuate in brightness as well as the headlights?
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Related Questions

How do you adjust the dash light brightness in your 2001 ford zx2?

I have no idea. Did you ever solve this? My dash board lights became very dim whenever I had the headlights on and my battery light kicked on occasionally. I thought it was the alternator so I just replaced it. The battery light issue is solved but the dash light brightness is still extremely low whenever I turn the headlights on.

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What is the increase of the brightness of light?

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