US HIDs to ROA HIDs Conversion Help

[g20beam]

I’m currently trying to convert my headlights (US/NA spec HIDs) to the Euro/ROA HID headlights.

After plugging them in, only the low beams/high beams and turn signals work, angel eyes and DRL does not. I looked at the socket and moved around one wire and the DRLs are now functional.

My problem now is the angel eyes, in the Euro/ROA spec lights they are a separate plugged H10 bulb, which does not exist on the US/NA spec.

My question is, how do I wire the H10 bulb to the main headlight wiring harness so that it functions? I know that one wire must go to the DRL light, does the brown go to the ground wire? If so, does anyone know which socket is for ground?

Sorry I am no electrician so any help would be appreciated. Thanks.

[danix]

Brown is usually ground but not always. You can check with a continuity tester from the brown to a bare metal ground (but make sure it's not hot first by checking for voltage).
This link may help with diagrams, haven't tried it myself: https://www.bimmerfest.com/threads/a...-2023.1436615/

[g20beam]

Originally Posted by danix

Brown is usually ground but not always. You can check with a continuity tester from the brown to a bare metal ground (but make sure it's not hot first by checking for voltage).
This link may help with diagrams, haven't tried it myself: https://www.bimmerfest.com/threads/a...-2023.1436615/

Hey thanks for your response but I’ve figured it out! The wiring works perfectly and there’s no codes even without coding. Did a whole LED conversion for all bulbs too.

[danix]

Awesome. Do post before/after pics of the beam coverage, may help someone.