Need help asap plz
 

I have a 06 milan... so i just finish installing some hids but im having a problem, it came with the relay harness but i didnt put it in cuz i didnt have time,I had to go to work. i did the installation right but they wont turn on at all.. on his dash it says check right/left headlight..i was readin the manual under malfunctions solutions and it says "if your car has flickering issues or a warning light in your dash, you may need to install Bulb Out Warning Cancelers (aka Error code eliminators). These units work on most vehicles. They work on 93% of cars with computer issues. so my question is WTF is a error code eliminators? im thinkin that is not gettin alot of power some how so i need to install the harness.. idk? please help, thank you