Point taken Clifford, but if my logic is followed, I cannot see that much of a gamble about it. It will not resort to "could be x or y", but a fault code will point you in the right direction and an estimated cost made. Seems quite simple to me - decision is made when knowelgeable of the facts, not ifs and maybes.
Question remains :- to view or not to view. Only Stephen can decide that, and he seems to have gone quiet on the subject!
Kind regards,
Gareth