I have a 05 coupe with 06 swap... headlights.. They been working great for last few years....But last year all of a sudden when i turn my headlights on they flicker and go out.. sometimes its the left sometimes its the right sometimes its both... i have had to drive home with the foglights...

Is it the BCM? switch or ballasts??? please someone chime in if they have ever incountered this i have 28K original miles on it and dont drive it in winter..

Im scratching my head here and hate to bring it to a dealer..
where can i get a schematic of the bck and lighting so i can try and trouble shoot this... thanks guys if you can throw some sugestions at me id appreciate it

 

is this really a serious question?

I'd try swapping ballast / bulbs first.

 

yes it was a serious question... i purchased some new ballasts form theretrofitsource.com and the problem was fixed using upgraded ballasts. )