One Halogen Light Out - Not the Bulb!

[ryankokesh]

Jack sounds like he knows what he's doing. I'd listen to him.

All I know is no ballast for halogens.

[brettbimmer]

There would be no ballast or ignitor for a halogen bulb. You can simply apply 12V to it and it will light up. Unless you had switched to a Xenon "H7 style" bulb. Then there would be. But then it wouldn't be halogen.

Edit - Just though of this. Try checking out the bulb holder. I have seen the connections inside the bulb holder get burnt and then not function properly. You could try swapping that from left to right also and see if the problem follows. That is, if you didn't notice any when you added the grease.

Thank you for the info! I didn't think that there was a ballast for the Halogens - only for the Xenons. Yes, 12V power source lit up the "old" H7 perfectly.

Bulb holder & corresponding female spade plugs looked to be 100% intact without any evidence of burning or melting, but thanks for the ideas! So far lately the light has been working fine, but I have not driven the car at night much since where I have been able to really test it all out again. It was working great in the garage the other evening for about 15 minutes, but so far untested on the road.