86 trans am- lights

I was just on my way home, turned on my headlights, everything was working perfectly. All of a sudden my instrument lights went out as well as the heater and shift pattern lights. When i got home i realized the tail lamps were out, yet brake lights and reverse lamps worked. I turned off my lights and the headlamps did not fold down. I checked all my fuses and all are good. The fuse descriptions are worn away, so im not sure what is what on all of them, so i just checked em all. There are some spots that i think have too high of a fuse in them. i.e. 25a in a 5a spot Would this cause a problem? Any ideas what could be taking all of those things out at once? Are they on the same relay? Everything had worked perfectly before this incident.
either way :ylsuper:
and thanks

Well, i replaced the headlight switch and redid some of the connections. Still nothing. :banghead: If one of the headlight actuator relays went would that make all of the above not work? I noticed that the back of the plugs goin into the relays were a little melted. I'm describing the two that are on in front of the wheel wells on each side. Iv gone through just about everything, havent gotten a multimeter yet to test the system, but ill be doing that soon. The cars inspection is up, so i really need to get this done quick. Not to mention i cant drive at night. Anyone who knows anything, or had a similar problem, please help.

id say that a bigger fuse could sent to much
power if there was a surge or short and may have
blown all of the bulbs.

unless you have the right amp fuse in the right socket, it will hurt your car. too high in a fuse is bad, too low in a fuse is bad. can't remember why but i am 100% sure they are bad unless they are the same number.

did you get that problem fixed yet? i have the same exact problem with my 89 firebird and can't figure it out, i need help.

unless you have the right amp fuse in the right socket, it will hurt your car. too high in a fuse is bad, too low in a fuse is bad. can't remember why but i am 100% sure they are bad unless they are the same number.

Too low a fuse is bad because it will more likely blow during normal conditions and when you replace it you may forget what size the fuse actually was so you either replace it with the same size over and over or put in a larger fuse that may be to large and when the circuit goes bad the fuse won't save it.