Horn not working and fuse is good. - 2004 Ford Expedition

different cars different places. look on back of fuse cover it is either on inside fuse box, or under hood fuse box. if the fuse is ok! check the relay for the horn in under hood fuse box. if that is good.disconnect wire from horn, run a wire from battery positive to the horn it self, if it works now, it is the horn relay or button in car. Good-Day!

If you know the fuse and relay have power, you should be able to jumper the relay and make the horn blow. The horn pad on the steering wheel usually grounds the relay. If you can jumper the relay and make the horn blow, the problem may be the horn pad or the clockspring in the steering column.

if you take a test light and test all the fuses in the fuse box and if they are good then when pushing on the horn button you can usually hear the horn relay working(click).if it does then you need to check the horn itself.take a wire and run it from the battery positive cable and connect it to were the horn wire connects to the horn,it should blow(make sure of a good connection),if it does then it could be a dirty connection at the horn.if it doesn`t blow then the horn needs replacing.you can also use the test light and test for power at the horn wire at the horn itself to see if the horn is being feed power from the horn button to the horn.

if you check the wire that comes from the horn button to the relay for voltage when the horn is pushed and have voltage then you have a bad relay,if not then you probably have bad contacts in the horn pad area or even the clock spring itself.

If you hear clicking near the engine compartment fuse and relay box when the horn pad is pressed, then you need to check the horn fuse,(probably have to look the location up in the owners manual) if the fuse is blown, you may have shorted out horns or a short in the wiring to the horns. Usually there are two horns for the vehicle and if you install a good fuse in the horn circuit then unplug one horn and test the operation the horn may work or the fuse will blow again. If the horn works, disconnect it and reconnect the other and retest,if the horn does not work and the fuse blows, you have found your bad horn. Good luck.

There are two main causes for Service Ride Control message - active strut failure and accelerometer failure.

Check fuse for horn and for dash lights. If the interior lights work then suspect dimmer switch for the dash lights. If you press the horn button do you hear a click under the hood or inside the car? If you do not then the fuse is blown and if the fuse is good then the relay may be suspected bad. If the fuse is good and the relay clicks then suspect the horn to be bad. If fuse is blown and you put a new one in and you push the horn and the fuse blows again, then disconnect the horn before replacing the fuse again. Then push the horn button and see if you hear the relay click if you hear a click the the horn is bad or wiring butmost likely the horn. If you have the horn unplugged and the fuse is good and you push thee horn button and no relay click suspect the horn button to be bad. Hope this helps.

First check the fuse. Then check wires to horn which would be close to the radiator on drivers side. If the wires are good and fuse is good, then either the switch in the steering wheel is bad, or the horn is bad. You can test power to the horn with a voltmeter. If there is no power, and fuse is good, then the switch is bad.
If there is power to the horn and horn don't work. Then horn is bad.

Your horn buzzer is either broken, or it is not getting power. The click you hear is the horn relay. It is good that you can hear it.

To diagnose the problem, locate the horn module. It should be behind the grill in the front of the car. Remove the power wire. Get an assistant to press the horn button while you measure voltage in the connector. If you have voltage, replace the horn. If not, find out why there is no voltage. It could be a blown horn fuse or a broken wire. Good luck.

With test light check voltage at horn assembly on both wire's, could only have one, horn assembly itself could be ground, have some one press horn button while checking, if there is voltage replace horn assembly, if no voltage horn pad at streeing wheel bad. that's being fuse and replay are good.

RF of engine compartment under hood, behind headlights.