My 2003 XKR's pass side headlight isn't working. I've got condensation on that side. I thought it was the bulb. But I switched it with the working drivers side and still no good. I put the pass side bulb in the drivers side and it worked, so not the bulb. Then I checked the fuse and it was blown. Replaced the fuse and still nothing. I tried 2 other fuses and still nothing. May not be related but the fog lights weren't working. Changed the fuse and now good.

 

I am assuming you have xenons from factory? If so probably the ballast module, you want a Valeo LAD 5g fitted to many cars but generic

 

Cheapest I found was from VALEO LAD5G 12PIN BALLASTBut they are in the UK

 

Has anyone tried other manufactures? Some say Dodge uses the same one. Any part numbers?