Boxer Horn Not Working (1 Viewer)

[MarkEdwards]

Hi All, I need some advice please from you clever people!

I have a Autosleepers Warwick Duo on A Peugeot Boxer 2017, for some reason the horn has stopped working and i'm at a loss as to where the fault lies, items i've checked:-

• Fuses, all Tested and OK
• Relay, I've tested the relay by swapping with the one next to it, and it works OK, i've also shorted out the contact point from the relay and this sounds the horn, so i know the power wiring is OK, however when i press the horn switch on the steering wheel the relay does not activate.
• Steering Wheel, i've taken the center off the wheel and tested the contacts from the horn activation, and all four are good.

So i don't know what to test next? does anyone know if the horn signal goes onto the CAN bus, or is it wired direct to the relay?

Any help would be much appreciated

Thanks

Mark