Let’s ask an AU.

Hello together and a happy new year. I was at the Tüv today and wanted to get my car over it, that unfortunately on the one hand failed at the horn (securing still flies out) then in the run of the last week a license plate lamp failed. The real problem is that the car did not get an AU, in the test report Co Vol% is not iO. My question is,is that now inevitably the Kat Defeckt is or can it also lie at something else and if yes To get back to the horn/secure, we had here before and some people here had given me tips, but somehow I don’t quite like the electrics. The temperature sensor and the horn cable run together in a plastic tube and I guess that there is a cable break there at the transition. Now last week I had the opportunity to check it at a buddy at work (heave stage) unfortunately was the time besc There was also a cable break, but only from the I-Temp display. Since the whole under time pressure took place I had not thought to pull the cable off from the horn and the fuse a set to see if the then flies out again. I probably will have to do that next week. I was already clear that I didn’t come so over the tuv, I was rather there that I then know if it’s all with the horn yes and now I know that it stops at the Au additionally l Is, therefore, I would be grateful if someone can help me further to my above question. Greetings Andreas