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Lo beam lights dont work

(2007 Buick LaCrosse)
in Woodridge, IL on July 08, 2010
I know the lamps are good, fuses are good, no "relays". I believe it's the HDM beam module. I cannot find the part anywhere. Is there another name for it?
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Popular Answer
on July 08, 2010
Make sure that you have power going to the HDM module, which is basically an electronic relay.
here is an online repair manual source so you can see what you need to do. Look at the wiring for the headlights,
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