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Thanks all, have unravelled the harness was replaced with an incorrect part when damaged by the place that replaced faulty clock spring.

New harness fitted, horn and cruise now fully functional.

all resolved, when clock spring was replaced, the harness was damaged, the replacement was not the correct part,

I assume the original post relates to an incorrect harness being used when airbag was replaced. I had experienced identical issues.

Hoping this will help folk with future issues ...

Yes will be doing some more digging, painfully enough, the slip ring has already been replaced due to a failure during the course of this horn and cruise issue, however the harness was not robustly checked to be fair simply a visual which is not enough. I am hedging on the control module in the ...

Sadly I do not have access to VCDS, I'm using OBDEleven and I'm unsure if it can pull a report I can paste here. I have another polo available later this week same year and spec, I will try switching the steering controls module over as I suspect this may well be the culprit, it won't cost anything ...

The horn works on an output test, no signal value from horn when pressed, but I have values from each of the cruise buttons.

I am advised no relay, not sure about any click sound, I have one fault being displaced regarding cruise, Cruise Control Set Signal ..Static Fault.. P056800 and there is a ...

Thanks for your response, I have replaced the clock spring already and the issue remains, I am under the impression something is not right can bus wise as both the horn and cruise share this.

I am unsure how to test. Tested all of the buttons and they are fine in terms of values but nothing from ...

I have issues with the horn not working from steering wheel, but functioning on an output test.

I also have the cruise control buttons on steering wheel not functioning, but there outputs are being picked up on a diagnostic output test.

The car has not been modified in anyway.

Any help or ...

I've got some issues with the cruise buttons side, have checked actual outputs and they are fine, just no cruise light being illuminated and no horn working.

This is not a retrofit, all as is from factory. Even the horn works on an of output test.

Have you had any joy in finding the issue? Faulty switches perhaps? outputs can be tested with diagnostic.

Did you resolve this issue ? I know I am resurrecting an old post but I have exactly the same issues , no horn working, no cruise control buttons working, but the steering lights up the buttons and all the ones for volume and info working perfectly.

Any pointers would be much appreciated.