I don’t think that there can be a CANbus on a 2016 bike! I’ve explored further and I discover that A2B have folded - even though the website suggests that their bikes are still available. SonA2B owners, we are ‘hanging out there’ - if when spares are required!A2B will be dealer only service in my view just as Bosch, Yamaha and Steps are.
Using CANbus systems they are not for after market tinkering or replacement.