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The horn relay is in the fuse/relay box under the hood. so the fuse is HOT on both sides? you should hear the horn relay click when pressing on the horn switch. there may be other relays in that fuse box to swap with and see if the horns work, if the relay clicks, its "usually" good, but the contacts may be bad. if the relay clicks, check for power at the horn. DARK GREEN wire, if it has power , then check the black wire, thats the ground. If it has power and ground, but does not work, the horn is bad.
If it's clicking then more likely the relay is OK and the horn is dead.
Try a pair of wires from the battery and directly onto the horn. Either the horn won't work, demonstrating that it is faulty, or it WILL work, demonstrating that the relay is faulty
The click you here is the horn relay, You need to find the horns and check for power at the wire connectors. But you probably have a bad low and now a bad high not horn. since the relay clicks your fuse is good so that eliminates the fuse.
The clicking you hear is the horn relay working.
I would locate the horn and insure the wiring is intact and the horn has a good solid ground.
Then while someone is pressing the horn button measure the voltage at the wire that attaches to the horn to ground. If you get 12v or more the horn is bad. If you don't get any voltage replace the relay
simple circuit, but can be hard if problem is switch in steering wheel. First check fuse and relay at fuse box. relay should click when horn button on wheel is pushed. If relay doesn't click, either button or relay is bad. If relay clicks, test for voltage at horn. You can use a simple test light available at the auto parts store if you don't have a voltmeter. If there is voltage at the horn, replace horn.
If relay does not click, replace relay to see if that fixes your problem. If new relay doesn't fix, you have a bad switch in the steering wheel or possibly bad wiring. cannot help you with switch as it's different on every car. any questions--let me know.
The horn relay is faulty or the horn is dead.Try tapping on the horn while someone is holding in the horn button,if that make the horn work the it's the horn,if not,change the relay.
if i'm looking at the right diagram, the horn-a/c fuse & horn relay is in the underhood fusebox. if your a/c clutch is working then you have power there. short of diving in with a multimeter or computer-safe testlight, i would listen for the horn relay to click when the horn button is pressed. that circuit is hot all the time and the horn switch grounds the horn relay. if you hear a click then most likely you have a bad horn/s. if you don't hear a click then you have a bad horn switch or bad clockspring in the steering column. and .... there's always the possibility of just having a bad connection somewhere in that circuit. if you see another relay with the same part number as the horn relay, try swapping relays. good luck ........
If you hear a click the power is working the relay. If no click under dash, possibly bad fuse or relay. If you hear relay, test horn. Unplug horn and run a 12V jumper to see if it beeps. If it doesn't, try to redo the ground and then test. Then if that doesn't work, replace horn.
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