What to know about the Horn Switch:
The horn switch is a primitive buzzer; when pressed, a complete circuit takes power to the horn itself. The horn is a straightforward component, 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 functioning, 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 cuts off.
Facts to Note:
If your horn switch doesn’t work, you have no way of alerting other drivers of potential dangers.
You are required by law to have a functioning horn in your vehicle.
SEE ALSO:HOW TO DETECT CAR HORN FAULTS
How to Fix:
The vehicle battery is disconnected
The defective horn switch is taken out
The new horn switch is fixed
The battery is wired back
The repair is confirmed and the vehicle horn is tested for proper operation
The horn operation is inspected 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 your expert mechanics inspect and change the horn switch if necessary.
Common symptoms indicating you may need to change the Horn Switch:
Horn is soundless when pressed
Horn sounds all the time
There is a clicking sound when car horn is pressed
Horn fuse is burnt
Importance of this service:
If your horn fails to work, your car will not pass a state motor vehicle inspection. Your horn is a safety device that allows you to alert other drivers to potential danger. If your horn doesn’t work, have one of your expert mechanics diagnose and correct the problem.