Ad-blue MFD not displaying

[CJW]

The horn issue is likely to do with MFSW since the horn signal is direct with no MFSW but goes through one of the data busses (LIN Bus?) with MFSW. Airbag look needs to be right. That old chestnut.

 

[Tanstalf]

The horn did work as did volume up/down and select, so just need to trouble shoot that. Likely connector to the light switch (according to my expert) @The Flying Scotsman

 

[CJW]

So it all worked at one time?

 

[Tanstalf]

The media functions and horn worked. I never got anything else to operate.