Hi there, new here.

I have a 2002 Primera which xenon only works on the right side, the left side is pitch black. Tried changing xenon bulb, disconnection the ballast but it still blows the fuse. So the next thought that I have concluded is the DRL relay. But where is it? Can anyone provide a picture or illustration of it whereabouts? Looking for a part number, or at least, try to pull it out and check if the fuse still blows.

Hi Thlian and welcome to NICO Club!

We have some factory service manuals here and those would show where any relays are. I'm not sure of the Primera stuff, but perhaps the USA equivalent will work for you. Here's a link:
http://www.nicoclub.com/FSM/G20/2002_G20/2002_G20/

Each chapter is a downloadable PDF and you can start with a table of contents in the FWD chapter.