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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Low/Beam highbeam not working after replacing modules + ballast



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      11-27-2022, 08:11 AM   #1
pgh.e92
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Drives: E92 335i LCI
Join Date: Nov 2022
Location: Pittsburgh

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LCI Xenon Low/High Beam Not Working | PLEASE HELP!!

So, I have the LCI adpative xenon hesdlights. My passenger lens got cracked and water ended up all in the electronics. The other day I took the lens off, fixed the cracked and carefully inspected each ballast and electronic for water damage. I replaced the xenon control unit (#9 in the diagram, guessing this is the igniter), the LED Modules (#13, I think these are for the angel eyes?), adaptive control unit (#10) and new bulbs. Now, the adaptive control light does not come on anymore so that was fixed. But some reason, I'm still getting errors for the low/high beam and angel eyes. When I switch the daytime control unit (#15) with the turn signal unit (#14), the angle eyes work and turn signal doesn't. So I know I need that module to fix the angel eyes. But, how come the low/high beam still won't work if I replaced all the modules for it? Is there something I need to do in WinKFP or Tool32 or something? Any ideas or thoughts welcome!

The component diagram for my headlights: https://www.realoem.com/bmw/enUS/sho...diagId=63_1208
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