Not had the problem on my own car but as there are two horns I doubt they would both pack up at the same time. I'd start by jumpering the relay. If that works check you get a ground at the relay when you push the horn buttons. If you dont, it suggests the fault lies with the ground at the steering wheel. I'm not exactly sure how that contact is made but as its a moving contact its the one I would suspect. But as you probably have an air bag please dont go whipping off the steering wheel on the basis of my guesswork![]()