i have a 90 camaro rs. my headlights dont turn on, my power locks dont work, my horn doesnt work or my rear hatch. im pretty sure they are all on the same relay but i dont know where to find it. i do have brake lights but only when i apply them. i dont have power going to my headlight switch and the red wire disappears behind my cluster. one day i had lights, the next......well you get the picture. if someone knows about a "secret" relay that maybe im overlooking or where a fuse for it might be please let me know so i can literally see the light. also....my accessory fuse has nothing on the recieving end of it...i thought that was very odd. dont know why they wouldnt run the accessories off the accessory fuse...but hey thats just me. thanks for any help on this!

Look at the solenoid stud where the battery cable attachs, there are two power wires each with a fusible link attaching to the same stud to power the rest of the electrical system.

If one fusible link is broken, could a reason for it. Look for the problem.

i looked at the one wire, there is a 20a fuse, its not broken. the other wire disappears and goes up by the heater fan and goes into the firewall and behind my dash, thats a place i dont want to have to go.

If there is battery voltage at the solenoid stud and no voltage at the headlamp switch, an open wire exists.You might have to venture into the unknown.

Get a Haynes manual for the car model to help guide you. I would suspect it would be a fusible link. Somebody has been there before as you mention a 20 amp fuse installed. Neve was a fuse installed from factory.

thanks for the advice. i have a haynes manual and i think im going to make this my winter project, tear apart the dash and trace it back....this sucks:(