AUTOMOBILE DIAGNOSIS DEVICE, SYSTEM AND METHOD

Disclosed are an automobile diagnosis device (100), system (300) and method. The automobile diagnosis device (100) comprises: a diagnosis protocol transceiver (10) for acquiring fault code data of an automobile to be diagnosed; a communication module (20); a main controller (30), respectively electrically connected to the diagnosis protocol transceiver (10) and the communication module (20); a multimeter circuit (40), electrically connected to the main controller (30), and used for sending multimeter data to the main controller (30); an oscilloscope circuit (50), electrically connected to the communication module (20), and used for sending oscilloscope data to the upper computer (200) by means of the communication module (20); and a signal generating circuit (60), electrically connected to the main controller (30), and used for generating an analog waveform signal in response to a driving signal of the main controller (30).