High beam does not work on 2007 Sonata. Purchased new headlight assembly. Same results. Plugged in new and old assembly on driver side. Still no high beam using pasenger side assembly!
verify you have power to the bulb. may have a broken wire, bad fuse, bad bulb, etc. also its possible the bcm controls this light and it too could have a problem...look for the simple things first.
I have this issue replaced light fitting bulbs fuses now going to try the relay switch if this don't work then am stuck
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