How to Fix a Car Horn That Doesn't Work?
2 Answers
Reasons why a car horn doesn't work: 1. The car horn has its own simple circuit. If there is a fault or poor contact in the horn's circuit, it will cause the horn not to work; 2. There is a horn button in the car. If the button is pressed for too long, it can easily lead to the button breaking, causing the horn not to work; 3. Car horn components are generally sealed to prevent moisture. If people do not pay attention to moisture prevention when washing the car, or if the seal is damaged, it can easily cause the inside of the horn to get damp, resulting in the horn not working when pressed.
A few days ago, my car horn suddenly stopped working while driving, which was really frustrating. First, I recalled my usual usage habits and felt the button was a bit loose. So I lifted the steering wheel cover to take a look and found the button's connecting wire was slightly loose. I tried tightening the screw, and the problem was fixed. If that hadn't worked, my next step would have been to check the fuse box, usually located in the engine compartment or near the passenger footwell, to find the horn's corresponding fuse and replace it if blown. If that still didn’t solve the issue, the horn itself might be faulty. In that case, I’d use a multimeter to test for voltage—if there’s no current, it’s time to replace the horn. Always remember safety first: if the horn fails on the highway, pull over immediately and turn on the hazard lights. During regular maintenance, wipe dust off the button to avoid water ingress and oxidation. Learning to fix these minor issues yourself can save a lot of money—I picked it up by watching online tutorials, and it’s been a pretty interesting experience.
