Registered Forum User
500SD
Bikes: 999 Mono/1198S
Posts: 803
Join Date: Jun 2002
Location: Yorkshire
Mood: Messing with diagnostics
The fan running all the time and coil error are regular problems we see on Ducatidiag. Try running a wire from the MIDDLE pin of the diagnostic connector by the battery to -ve terminal of the battery. From what we have found out it is an earthing fault inside the ECU.