Hi. I have 2010 A5 Convertible 2.0 TDI 125KW (CAHA) I have noticed that my horn isn't working. I scanned the ECU with Foxwell VAG Scanner and it found a fault witch cannot be cleared (00576 - Terminal 15 008 - Implausible Signal - Intermittent) I checked the fuses but they all look fine. I have tested the horn in diagnostic module, it does work via VAG COM and I can hear the relay swiching when horn is activated so I guess there is something wrong with the steering wheel components, right? Did anyone had that problem before? Any ideas what's wrong?