I have some wiring issues with my camaro. First i am not able to get my headlights to come on, i think the switch might be bad, is there a way to test it? Also when i use the turn signals, the right one seem to work in the rear but when i flip it to left it's still the right one that lights up. Also when i press the brakes i get no brake lights. One more thing is how do i hook up the horn?

Do you have power to the head light and brake switch?
Bad turn signal switch? Bad rear light ground, wrong bulbs? would need alot more info.
horn button on the steering wheel grounds the horn relay on the core support. Relay closes, supplying power to the horns.
Dale

If it is the original wiring , I would snatch it all out and get whole new harness. it costs a little bit, and takes a while to put in, but it sure makes things easier to figure out, plus, you feel alot safer about wiring in car. It's one of the best things I 've done to mine so far.

Basics here. You need to get a hold of a wiring diagram which is available here on the site. And a DVM. Once you have that stuff, you can test the switch and the wiring. Read the tutorials in this section, they are quite good.

alan