Help Please

Coming back home today after another painful physio session, my afternoon was capped off when a volvo estate decided to just change lanes with no warning missing my front tyre by only a couple inches .....went to press the horn to hopefully get the idiots attention and.....nothing!
So on the oblivious d***head went and I don't have a horn that works and my MOT is due end of next week!!

Any ideas as to why its suddenly stopped working?

cheers x

Is it still there? Does it vibrate when you press the button but not make a sound?
Have you got thre means to check if there is 12V at the horn when you push the button?
£14 gets you a Siebel replacement from Halfords, louder and will scare the pants off most cagers.

Put a new Acumen horn on and it was working!

You don't need us then