Have you checked your fuses? Does the turn signal light up at all? If it does, you most likely need to replace a flasher.
No, they are not.
I had the same problem. . . I finally located the horn behind the passenger side front turn signal.
there is probably a short in one of the circuits or else somehow two wires were crossed that shouldn't be
Everything is fused somehow.
A 72 Mustang doesn't have a horn relay. The problem that your car is having is probably either A) The wire coming from the turn signal switch to the horns is cut, frayed or broken, B) The wire supplying the horn power to the turn signal switch is, again, cut, frayed or broken, C) The turn signal switch horn contacts are worn out, or D) The steering wheel horn button contacts are worn out.
no
the horn accuator on the steer. wheel just completes the 12v signal from the battery to the horn system. the problem could lie in the horn accuator contact not releasing from the horn activator contact within the horn actuator assembly within the steerng wheel. remove the accuator assembly on the s-w , check for a 'LOOSE WIRE'. there might be a "FUSED" contact. if wiring checks out "ok",put fuse in and check to see if horn stays on. if not, the problem is here. repair as necessary. if not here, a long process of tracking the wiring to the horn will be required here to find a possible short,. or possibly an open circuit.
This has been my problem, and it is a real headache. I ended up putting a reomte horn button on. I can not easily describe what the problem is, and yet to really know what is causing it. I pulled the small black wire out of the turn signal switch that feeds the horn switch, and wired to ground from there.
a wire not re-connected after service?
A Fog Horn.
No. The horn and the turn signals are on completely different fuses and wiring. I don't know why you thought that the horn could be made to stay on by the turn signal, but that's your answer. ========== The turn signal switch and it's plastic housing could pinch the horn wire against the steering column and cause the horn to sound. You would probably hear a change when you wiggle or click the turn signal switch. This can happen because many horn relays are activated by grounding the wire inside the steering column, so if the insulation is damaged it can easily be made to sound.
That depends entirely on what's wrong with the horn. It could be a problem with the horn relay, in which case you simply replace the relay. (Under the hood, in the fuse/relay box next to the battery) It could be a problem with the horn itself, in which case you simply replace the horn. It could be a problem with the horn switch, which is a part of the steering wheel. If that's the case you'll need to replace the steering wheel or horn switch. It could be a problem with the horn wiring, in which case you'll need to track down the specific problem and repair it. Good luck.