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How can I disconnect the horn on a 2000 chevy cavalier? It randomly honks itself. If I squeeze the steering wheel, it's like the "sensor" (?) pops back up and the honking stops. But it's happening more and more and I don't need my horn that bad.
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it the horn activates randomly when driving and when the steering wheel is moved , the problem will be the ground contact under the steering wheel
there is a small spring loaded button that runs on a slip ring in the back of the steering wheel and intermittent/ random operation can be traced back to a fault in this area
the horn works so it is good , the fuses and relays are working to make the horn work so they are good ( unless there is a grounding problem with the relay causing the relay to operate and blow the horn)
Why not just unplug the horn rather than the battery? One wire plugs into it. The cause could be a number of things. (i.e. Horn button stuck in steering wheel, defective anti-theft system, etc....) This is a tough one to diagnosis.
Either the horn itself is grounding on something or the hornpad on the steering wheel is making contact when it shouldn't be. Or maybe an aftermarket alarm is causing the problem.
If you take the steering wheel off you'll see the ground wire that grounds the constantly connected horn. Note the color of the insulation.
You could also reroute the wire from under the hood starting at the horns and simply connecting a switch that grounds the horn out to operate it with an outside switch, that is outside of the steering wheel.
THE SWITCH IN THE STEERING WHEEL IS PROBABLY GOING BAD OR HAS A LOOSE CONNECTION THAT IS GROUNDING OUT AND COMPLETETING THE CIRCUIT AT RANDOM. I REALLY DONT KNOW HOW OR WHY SHUTTING IT OFF WOULD TEPORARILY FIX THE PROBLEM BUT WITH ELECTRICAL PROBLEMS ANYTHING IS POSSIBLE BELIEVE ME. ALSO TAKE A LOOK AT THE WIRING AND THE HORN ITSELF TO SEE IF EVERYTHING LOOKS OK THERE.
Check the horn actuating contact at the centre of the steering wheel. It may be damaged or mis-aligned.
Also check the carbon contact that runs on the slip ring under the steering wheel (associated with steering wheel horn actuate switch) It may be damaged or mis-aligned.
If none of the above are faulty, you should look for a possible intermittent short to ground on the horn actuation control wiring.
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