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Headlamp wiring for H4 bulb - Click HERE for Original Thread

GsiTurbo
Hey all!!!

I run into a little difficulty while installing the euro-specs headlamps for my car. The factory 9004 bulbs use a different connector, which is not a problem. I already made a relay harness a while back just in case. The problem I have is which wire is the ground, +12V low beam and +12V high beam?? So I guess that my question goes to the ppl that use H4 bulbs in their cars...

On the connectors, (looking from the back at the bulb), which wire does what??

Like the one on this pic (mine wires are not so pretty....I have white, blue and green:


Based on the pic, IT APPEARS the very RH side connector might be the ground...

HELP!!! :rolleyes: :D

SplineZ
pull out one of the wires, and try and turn on your high beams?

or get a volt meter and read which one doensnt have current when your low beams are on?

*shrug*

James Z




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