Hello all. My friend has an 03 CTS. When we try to turn on the headlamps, or parking lamps none of the lights come on. No marker bulbs, no tail lamps, no headlamps, nothing. The fog lights do work, and the blinkers work. Also, when we turn the headlights on the bright light indicator is illuminated on the instrument cluster. We unhooked the battery for a while when we were putting in an amp install kit, and that's when the problems started occurring. Any help would be appreciated. Thanks!!
Brandon

 

Any help would be appreciated. We are both stumped.

 

check your fuses?