RHD Vitz RS cluster

[CTScott]

Originally Posted by Kioshi

If the 09 corresponds to the Prius broadcast message of the vehicle speed, what would that mean?

Isn't the speed some how related to the mpg meter on the Prius. I know on the older models depending on what speed you were cruising at, it corresponded to the mpg you would be getting....

The ECM gets the speed info and then broadcasts it over the CAN for whomever needs it (power steering ECU, etc.). The only significance to the Prius is that someone figured out that particular message. Other than the standard OBD protocol over CAN, there is little to no information out there, so it typically takes lot of work to figure out what data the messages contain.