C4 horn not working

[renel]

VF7**************[VIN obfuscated, can be read by forum staff], pr11076, year 2007 c4 Pic
Horn stopped working, I checked the fuse F2, 15Amp in engine compartment. Fuse ok, checked with a testlamp..no current on either contacts, do not matter whether ign. is on or of!! is that internal in the BSI or just passing, and gets current from elsewhere? Diagram?
rgds René

[mickthemaverick]

Hi Rene, we are having some problems with Stellantis at the moment which is preventing access to the diagrams for your car, however this is a generic car horn wiring diagram which will give you some idea. In your car the relay function may be within the car's computer but it may not be. Anyway hopefully it may give you an idea of what to look at.

BFTW

[renel]

Hi Mick, The horn circuit is simple as you say, I am a mechanic myself so it should be an easy task;-), but is not. Relay is not audible, whether it is in-or outside. No positive voltage at horn! And,as mensioned, no voltage at anyside of the F2 fuse, fuse is ok also. kind-of strange, this is how a simple problem gets complicated. I hope a model-specific diagram will be available soon, thank you;-)
René