Toyota tester The intelligent tester ii is designed to fully utilize the enhanced vehicle on-board diagnosis function such as improvement of data refresh rate (can protocol), enhancement of freeze frame data and active test function and so on. As an aid in diagnosing electrical and electronic control system, it is capable of monitoring and testing electronic control units (ecus) for powertrain, chassis and body systems and their associated sensorsand actuators. Easy and fast usb connection will realize tight integration with personal computer (pc) based applications and systems. The intelligent tester ii has an ability of future extension via generic memory card slot and change of the optional unit. The wireless communication with pcs will be possible by using wireless card in the future.