hey. i have made a post about this before but here is whats going on. I own a 1987 turbo rx7. the headlights work fine but the tail lights do not come on whatsoever. the brake lights also work fine. in response people said that it could be the headlight switch. Is it a grounding headlight switch? i need to kno this so i can test to make sure that this is the problem so i can get a new one and get over this problem!

thank you

if you have any other suggestions on what it could be feel free to reply.