Horns out of order

[MenBret]

Hello
For some reason my horn doesn’t work any longer. When I press the wheel boss I just hear a kind of clicking (which leads me to believe the relay is not functioning properly). May be the horns though, or another mysterious electric issue.
Please share your thoughts!
Thanks a lot
Cheers
Vincent

[nmauduit]

Bonsoir Vincent,

would your horn be of the "Maserati" air horn type (with 2 red trumpets) ? If it was working before, I would check the compressor, which required a drop of two of oil on a regular basis (there should be a small cap for this iirc). You can check it out directly on 12V (it draws quite a bit of current, so sufficiently large test wires should be used). You may also check the relay (was the photo of the relay taken while it was still working, with no wiring modifications? )

[MenBret]

Merci beaucoup!
The horns on my car are black
And yes, they were working with the relay connected as shown on the previous pic.
Maybe an earth issue?
Cheers
Vincent