Right got abit of an issue hoping it's easy but any help welcome. I got some HID about 3 weeks ago and been working ok but the passenger light when you turn the lights on would cone on then go straight off. Now it won't come on At all and it's failed it's MOT because of it, the guy is just going to put some standard ones in to pass it. I have checked the ballasts and swapped them over and they work ok. Hoping it's just the light that's blown but I can't see it has or is it something more... Has anyone else had this problem? The MOT guy said he fiddled around with it to work but it didn't? Any ideas other than change the bulb???