Hey guys I humbly came here to ask for help with my problem on my 1981 Camaro. My dash lights and running lights no longer turn on. I checked the fuses and there was a 20amp blown. I replaced it and the problem persists. I checked the new fuse and it is still good. I cannot figure out why they will not turn on. Is there a relay for them? Any help is greatly appreciated!

 

If the fuse remains good, then it's probably a burnt or broken wire/s. Find a repair manual with wiring schematics and start chasing wires. Light switches are also common areas for problems. Check for power in and out of the light switch. The dash lights are on the "dimmer" which are know for problems also.
Good luck!