Hey guys I own a 2003 s2000. My drivers sidemarker does not work but my passenger side works. I already replaced the blub. Where do I go on from here?

 

Make sure the new bulb works? Swap it with the bulb from the working side and see if new bulb is out. Also, are they regular bulbs, or LEDs? If LEDs, then orientation matters - flip it 180 and see if that works as well.