Carista Diagnosis Issues

[secretK9agent]

T6.1 21 with retrofit digital dash and retrofit rear speakers.

I have the following errors showing on Carista. If I clear they go, come back typically after a day shut down:

Instrument cluster:
16711685 - Databus missing message
16777018 - Function restriction due to communication interruption
16777056 - Function restriction due to communication interruption

Infotainment system:
01659 - Data record implausible

Telematics:
00081 - Databus missing message

Is there any useful info to translate here? I've gonna down a rabbit hole via Google.
I'm having a lot of trouble with VW agreeing to do any work with the digital dash in place.

 

[Craig.]

On the surface of it I'd say the digi dash hasn't been installed correctly in that some can/lin/comms wiring have been omitted or not adjusted possibly or it hasn't been coded in correctly in that the rest of the van hasn't been adjusted for the fact it has the digi dash now and/or the dash hasn't been coded for all the options present in the van.

Or both.

Too many possible causes for that really to diagnose and you would be better served taking it to a specialist that does this sort of thing as they would know the possible causes.

 

[secretK9agent]

On the surface of it I'd say the digi dash hasn't been installed correctly in that some can/lin/comms wiring have been omitted or not adjusted possibly or it hasn't been coded in correctly in that the rest of the van hasn't been adjusted for the fact it has the digi dash now and/or the dash hasn't been coded for all the options present in the van.

Or both.

Too many possible causes for that really to diagnose and you would be better served taking it to a specialist that does this sort of thing as they would know the possible causes.

Many thanks for the reply.

Guess I'll need to be on the look out for a retrofit specialist, who does the digital dash in-house (I note a lot do it but get external people in to fit)