About three (3) moths ago, I upgraded my stock Halogen low beams (left/right) and fogs to HID. Installed all four ballast. Everything worked great since then. Until a couple of days ago my driver's side low beam didn't want to turn on for the first couple of on and off attempts. Then it came on. No problem. But, tonight my passengers FOG light doesn't want to come on at all!!! It worked this morning in my garage. I don't know what is the problem. I have a 5 month old battery. My dash doesn't give me any signals or check lights. I take care of my car. I'm a very clean and thorough installer. I mean I had absolutely no problem for months of everyday night driving until now. What do I need to check? I hope I don't have to remove that bumper again. Please help!

 

where did you get your kit from? i'd contact them first.

 

i would double check the ballasts, bulbs first. and add relay harness to your low beam hids

 

^ what alan003 said. but i would run relay harness on both low beams and fog lights.

 

Thanks You guys for such a fast response. I really respect that.
I bought these 2 kits from hidxenonheadlights.com There isn't a brand name on the actual kit but according to their site its called VIP HID. Anyway I called them up this morning and was told to swap bulbs and ballasts in order to narrow it down. They promised to send me the replacement parts for free after I check. I hope I don't have to do this every few months. On the IS models, when it comes down on replacing bulbs it's a major hassle.
I'll check everything tonight and call the vendor back tomorrow.
Question on your last:
Why would I need the Relay Harness?
You think I'm not getting enough power to the ballast?

 

The relay harness is for the HID to pull power at startup, to prevent damage on wires and other components.

 

^ what iSuxeL said. im running a harness to my fogs light, but my low beams were already HID.

 

^^how much do the relay harness cost?

 

^ they usually run about 15 bucks, more or less. i bought mine from ddm tuning.

 

So, I need a set of four (4) relay harnesses for my four ballasts? Nuts.

 

Excuse me, I meant to say 2.

 

well, im not sure if you can run two harness to the battery or not. so just wait until somebody else steps in and tells you.

 

This is a common issue (not for just our cars, but others as well). Search the forum and google. There is no resolution for it that i know of.

After 3 years of dealing with the problem in my IS, after testing everything, i took them out and put halogens back in. Not worth the hassle anymore.

 

It's typically cause of cheap kits. I honestly want to just get a genuine Philips kit and call it a day already.

 

i have no problem with my ddm tuning so far. I think the best HID before were mobilehid. but they dont sell them anymore.