I think I've found a lead to connect to the 6 pin diagnostics plug under the seat but which code reader are people using to read error codes and reset them?
That may be for the lap timer thingy add on. I believe the connection to the ECU may be via the rhs side panel, within the black plastic bit just below tank. Thats where mine is on my 1299 and its likely similar. The 2 is pointing at it. Edit: the 4 pin connector is just behind the ecu