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Im having a problem with my HID's on my civic, currently im driving an Ep3, just wanted to know whats wrong this them and if there have been other members with the same problem. My hid on the driver side doesn't turn on when i turn the switch it only flickers and it makes a buzz noise on the ballast but it doesn't turn on. I have a O-NEX system. any help will be appreacited..

 
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do you have a separate relay harness with fuse that draws power directly from the battery? stock harness cannot normally handle the large power draw by both ballasts and often only one side comes on. so you need a new one with thicker wiring. at least 14 gauge wire with 15 amp fuse. and any 30 amp relay.

 
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You might have bad fuses. My drivers side stock low-beams weren't working due to lack of power. Check your ground too.

 
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Or it could be a bad ballast. To check if its a ballast problem, switch the ballasts around and see if they do the same thing with the other light.