Ford Focus Forum, Ford Focus ST Forum - View Single Post - Having aftermarket headlight problems?
View Single Post
Old 03-04-2013, 06:30 PM   #8
Focus Addict
gtferrari's Avatar
Join Date: Jul 2011
Fan#: 88110
Location: Grand Rapids/Big Rapids/Bangor/South Haven, MI
What I Drive: 2008 Vista Blue SES Coupe

Posts: 575
FF Reputation: 4 gtferrari Good Standing Member
Buy-Sell-Trade Rating: (0)
From trfs

Thanks for your email and patience waiting on a response here. I'm sorry to hear of the issues with your harness recently.

There is a diode installed from the high-beam to the low-beams that keeps the ballasts on when you select high-beam, so that was likely either burnt out or removed somehow.

If you prefer wire in a diode, it's a 1N5404 that goes with the stripe facing the low-beam wire coming from the relays
2008 Vista Blue SES Coupe 5spd FRPP Zx3B Suspension
5000K D2S Retrofit
130,000+ miles and still on factory brakes and clutch!

Rep Points dont add themselves
gtferrari is offline  
    Reply With Quote