Would a check with a tester that they use in Ducati dealers, ( not sure of the name of them) have identified the fault as being- 'bad connection to rear wheel speed sensor'? edit. Mathesis tester , that's the thing I was on about. https://www.ducatiforum.co.uk/threads/ducati-mathesis-tester.8894/
I didn't explain myself well. What I was trying to understand was if a Mathesis tester has the ability to measure all the bikes systems for a 'normal' value and flag up any that are out of normal spec ?