My daytime running lights work but my HID lights do not work at all ! I don’t know if it is a fuse or if both bulbs happen to go bad same time. Help me out. I haven’t been able to drive my car at night time unless it’s close by. I have two brand new D3S bulbs coming in but if that doesn’t fix it what could it be ??

 

if you have a multi-meter, start from the source. I am assuming you have a harness that hooks up to the battery. also, be cautious when putting in new bulbs, make sure you do not touch them with your bare fingers. Lastly, you might want to try to see if regular bulbs work, doing this will ensure your headlight wiring is operational.