What are the main functions of an automotive fault diagnostic tool?

1 Answers
OJeffrey
07/29/25 4:19pm
The main functions of an automotive fault diagnostic tool are: 1. To establish communication with various electronic control units (ECUs) in the vehicle through CAN and LIN communication modules, transmitting fault codes and engine status information; 2. To perform serial communication with a PC via the microcontroller's synchronous/asynchronous transceiver for data exchange, program downloading, and diagnostic tool upgrades; 3. To display vehicle operating status data and fault information through an LCD screen; 4. To execute different diagnostic functions via keyboard circuits; 5. To store large amounts of fault codes and measurement data using a high-capacity flash memory with serial interface.
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