OBD II CAN busController area network (CAN or CAN-bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer
OBD-2 ISO 14230-4 (ISO-9141-2, KWP2000) RS-232 cable schematicshould be suitable to vehicles of most European and Asian manufacturers. Alfa Romeo, Audi, BMW, Citroen, Fiat, Honda, Hyundai, Jaguar (X300, XK), Jeep since 2004, Kia, Land Rover, Mazda, Mercedes, Mitsubishi, Nissan, Peugeot, Renault, Saab, Skoda, Subaru, Toyota, Vauxhall, Volkswagen (VW) since 2001, Volvo to 2004
OBD-2 J1850 PWM, J1850 VPW RS-232 cables schematicsJ1850 VPW interface exist in General Motors and Chrysler vehicles, J1850 PWM exists in Ford models to 2003 with EEC-V system, Ford Cougar (all UK models), Ford Puma, Ford Fiesta Zetec (models to 2003), Ford Mondeo Zetec (models to 2003), Ford Focus (models to 2003), newer Jaguar S-Type and Jaguar X-Type and pre 2004 Mazdas vehicles.