Catch all tag which can refer to the "brain" of the car which can control the engine and/or transmission of the vehicle. This would include such terms as PCM (powertrain control module), ECM (engine control module), PCU (powertrain control unit), ECU (engine control unit), and many, many others.
This question might be too technical for this forum, but I'll give it a go. I have a 2012 BMW R1200R motorcycle with CAN-BUS. I'd like to make an Arduino interface to the connector on the bike, but I ...