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The horn switch is a primitive buzzer; when pressed, a complete circuit directs power to the horn itself. The horn is a straightforward device, working off a solenoid that has the negative side grounded to the frame of your car. When positive voltage is distributed, the solenoid pulls it in and the horn sounds. If the horn switch is not working, the horn will not sound if pressed. Alternatively, if the horn button fails or is “stuck,” the horn will sound continuously until the fuse overloads and burns out.
The horn operation is checked on every safety inspection and should also be checked on every comprehensive vehicle inspection. However, the horn switch itself is not specifically checked nor does it receive regular service. If the horn stops working, have one of our expert mechanics inspect and replace the horn switch if necessary.
If your horn doesn’t work, your car will not pass a state motor vehicle inspection. Your horn is a safety device that allows you to alert other motorists to potential danger. If your horn doesn’t work, have one of our expert mechanics diagnose and correct the problem.