Last year, as i was driving to Vancouver, I tried to use the horn. DEAD. Ok, so when i filled up with gas i checked the fuse (the horn is the only thing on the unswitched fuse) and it seemed ok.. changed fuses anyway, still no horn.... ok, gonna check it when i get to my destination.. so back on the freeway, the tach dies,.. then no turn signals, i think.. i'm just gonna keep driving until i get where i'm going, THEN i'll try to diagnose things. Upon arrival I open the hood and look at the fuse block. When i tried to check the one fuse, i must have knocked the other fuse loose cause its canted in the holder and just making contact. enough to run the car, but not enough current for anything else. .. so, either its your fuse blown or wire has pulled loose from the connector at or near the fuse block, or off the ignition switch, whatever you have disturbed last. .. ..
when i got back home, i got everything ready to do a continuity check on the horn circuit. a long piece of wire and a volt, ohm meter, pulled the grill and found the wire pulled out of the bullet connector.