ItsMeCarlos Posted September 26, 2023 Share Posted September 26, 2023 I have a 2023 A5 and was changing out the horn and now the horn doesn’t work anymore (neither the new one or the one that came with the car). The screen also stopped working. I checked the fuse and it’s fine. Now sure what other things to check. Relay also seems fine. Looking for advise on what else I should check to fix this. thank you! Quote Link to comment Share on other sites More sharing options...
Magnet Posted September 27, 2023 Share Posted September 27, 2023 Hello Carlos, Welcome, and thanks for joining. Would I be daft to suggest even the horn has to be coded in on this virtually new car? Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 29, 2023 Share Posted September 29, 2023 Is it an aftermarket horn? Why was the horn changed? Quote Link to comment Share on other sites More sharing options...
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