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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 04-14-2017, 06:45 AM   #1
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Join Date: Apr 2017
Location: Marathon, FL
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My Ride: 2006 - 330i
Headlamps - Not Working On Automatic

I have a 2006 330i. Recently the headlamps will not work on "automatic" - although they are fine on "manual". Any ideas as to what is causing this?
Thank you for your interest.
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Old 04-14-2017, 12:59 PM   #2
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Location: Toronto
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Is yours an E90 or E46?

On the E46 if Auto won't turn on, there is usually a problem with the rain/light sensor. However, generally if there is an issue with it, the default for Auto would be always on.
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Old 04-14-2017, 01:48 PM   #3
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E46 definitely defaults to on if there is a blow rain/light sensor fuse or issue with the sensor. It could be a bad switch on the LCM itself. Simple to try a different one, just comes off the LCM with a small ribbon cable.
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