Horn no blow - 2000 Honda Odyssey

Try disconnecting the horn and see if the fuse still blows when you press the horn button. If it does not blow the horn is probably bad. Buy a new horn.

disconnect the horn or horns, operate the horn and see if the fuse still blows. if the fuse still blows then there is most likely a short in the wiring. relays rarely cause shorts. if the fuse doesnt blow with the horn disconnected, reconnect the horn and operate the horn again, if the fuse blows you have a shorted horn.

you may have a short in one of the horn them self . the easy to test is to unplug both horns then see if the fuse blows. if not plug in the horn one at a time . and see which one blows the fuse . replace the one that dose. if you have only one horn still do the test.

probably the horn is going bad. unplug the horn and then hold down the horn to see if it blows a fuse.

it sounds like it is shorting out in the steering colummn.

the coil in your horn is going to ground you need to replace horn.

could be you might check it out. many items take the same relay so you might try exchanging it with another one with the same numbers. If that isn't it you may have a short in the horn itself.

This sounds like the horn may have a short in it somewhere. Does the horn blow at all? Try this: Make sure you have a good fuse installed to this circuit again. Disconnect the horn and place a volt/ohm meter set to DC volts on the horn connections. If there is just 1 wire going to the horn, put that wire on the red wire of the meter. Put the black wire of the meter to a good ground, preferably the negative battery terminal. Now press the horn and see if there is a reading of around 12 Volts. If so, replace the horn. If not, and the fuse blows again, check the wiring for a fray/short to ground. When you're looking at the horn of course, make sure the positive lead isn't shorting to ground as well.

I hope this helps! Let me know if you need any more assistance! :)

-Jason

When you press on the horn button do you hear the horn relay click? The start at the horn, bench test it, if it works then check for power, is the fuse good and is the relay ok. If the stuff checks out then it may be the horn contacts behind the steering wheel.

you may need to put a relay in it as the current from the horn may be back feeding up the immobiliser horn circuit and causing a short. Sounds like the immobiiliser has its own source of power seperate from the factory circuit When you press the horn the power goes to the horn and up the immobiliser horn circuit and it blows the fuse.