Passenger corner light has no voltage

Need help figuring out why my passenger side corner lights don't work. It is NOT the bulb because I bought new ones and still no light. Driver side works fine.

Background: only electrical mod are DDM tuning HID's. But can that affect one side of corner lights?

Any positive feedback appreciated?

 

It can't be the fuse if the passenger side works right?

 

There is lots of posts on this subject... I had the same problem but it was drivers side. Also my tail light wasn't working at all except for the break light. I had loose or broken wires to the clip.. One was the ground so I just bypassed the clip.. Basicly just had to search for voltage. If u get 12 volts and still doesn't work it's the ground