Well took the centre console out (brake, raise/lower lights, rotary switch etc) and replaced whole lot with a working unit. Exactly the same reluts so not in there. Also did not find remanents of coffee, soft drinks so I must apologise to the wife and kids ! Next step ??

 

Well still looking. Replaced the main ECU with a second hand unit, reprogrammed this with the VIN and tried it. Exactly the same, the 2 persistent faults being P0560 and P0915. So I guess the problem must be in the power feed so will get down with the multimeter.

 

Have a read of this , new TC shift motor required.

https://www.aulro.com/afvb/l319-disc...ormance-2.html

 

The TCCM board itself can be corroded.