[Niceboxer]

Faulty ECU was diagnosed by process of elimination. Bike didn't run with the original ECU (with FIM chip), and ran fine with the replacement used one.

According the service manager at the local dealer, the fault codes from the old ECU would not have been informative(?). Something about older versions of the Motronic units not really having OBD, but just spitting out codes that they don't know what to do with in most cases.