I have a 1995 Camaro and ive been having some issue with the electrical system. My brights, headlights, blinkers, interior fan and electric engine fan wont work. The hazards, tali lights, brake lights and parking lights work fine. Ive checked the fuses and relays and the body grounds and theyre all ok. But the engine fan not turning on is causing my car to overheat. Has anybody else had this issue or know how to resolve this?