Ok this is my stoy i have a base 04 tl. The hids comes on sometimes on the drivers side. I Flickr it on and off then it goes on. What can it be ? The fogs Work well all the time. But now even with all the flicking it wont Work. The dealer is telling to get the whole headlight which is crazy. Is it the ballister? Ignighter? Dont think is the bulb. Please help !! Thanks guys.

 

have u looked that the connector from the wiring harness to the bulb? cause when i hooked my HIDs up to my car, they did that and i realized i didn't have it fully connected.

 

What I would do is swap parts. It's a long process because you'll have to take the bumper off and headlights but better than paying for a whole headlight! Your problem has nothing to do with the headlight assembly, it's either the ballast or the igniter. So swap the parts one at a time from one side to the other, start with the bulbs, turn on the headlights, problem still there, switch the igniters, turn on the lights, if the problem still arises then swap the ballasts + igniters. It hopefully is one of those.