I have had same problem for a few months. Took to yamaha unfortunatly fault code isn't specific. Could be clutch switch, front brake switch or rear brake switch. They thought iit was clutch switch and replaced under warranty, sadly it started playing up again, took it back and they couldn't narrow down the fault, and couldn't replicate, but suspect front brake switch. Have been told to just keep using and bring back after it plays up a few more times. Strangely it hasn't since. My warranty is nearly expired but i have been reassured they have logged the job, so yamaha will honour this as a warranty repair even after warranty has expired so that put my mind at ease.