Ok, I hooked up my lights and when I turn on the headlights, I have no tail lights and the brake lights will also not work. When the headlights are off, brake lights work just fine. For some reason, I cannot get the tail lights to work. When I do turn on the head lights, my license plate lamp will come on but no tail lights. Anyone got an idea on what to look at? I did check the ground on the tail lights and also checked all the fuses as well.

 

Bad ground at the taillights is my first thought here.

 

Thanks. I will double check the ground again tomorrow. The only ground that I saw on the tail lights was right by the trunk latch in the middle of the rear panel. Is this correct? Just so I am not missing another ground.