I have a 2007 Infiniti g35x Initially both headlights were working. Then all of a sudden only the passenger side and now only the driver side headlight turns on when I start the car and stays on for 10 seconds and shuts off. Highbeams are not functioning either. I'm with no headlights at all. Emergency lights and turn signal works. Any help would be appreciated. THANK YOU

 

Start by cleaning the battery ground, both ends of the cable. Next do the headlight ballast grounds, they're on the front of each wheel well inside the engine bay.

However since it's cycling like that it is USUALLY a bad ballast. You can unplug it and check for proper voltage at the ballast, if it has power then it's either the ballast or the lamp.

 

Cleric..... Do you think i have two bad ballast then?

 

It's happened before Start by testing the harness for proper voltage to make sure it's not the IPDM or other circuitry causing the issue.