The horn does not work. The fuse is ok. the same fuse protects both the horn and emergency flashers. the flashers work fine. I cannot hear any clicking noise for the horn's relay. Where is the horn's relay?
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Start with the fuse. If good, then check the wire. It is a single brown wire, horn is grounded at it's attachment point to the body, between the front grille and radiator on the driver's side. Starting there is easiest. Use a test light at the connector clip while pushing the horn button. If the circuit is good, but no sound, you need a new horn. Often times, wear and tear will cause the clip to fall off the blade contact. If the circuit is no good, pull the center plug from the steering wheel and check the circular contact ring and tab. The ring can build up gunk and also wear through, then not make proper contact with the horn button contact tab.
OMG. Someone with a car older than my '87 toyota. Possibly a bad switch, but first locate your turn flasher, maybe that is bad, easier to try than another switch. Turns should have a fuse, too. check that.
pickup a test light and check all the fuse if the fuses are good then you probably have a bad signal flasher.make sure you change the signal flasher and not the emergency flasher as they look the same.
There are three fuse boxes in the pick-up,One is located in the engine compartment,and one at the drivers side kick panel, and the last one is located behind the glove box.Each fuse box has the fuse numbers and circuits protected on the lid of the box.Good Luck.