Automobile diagnostic tool

Abstract

The invention discloses an automobile diagnostic tool, which is characterized in that the diagnostic tool includes a processing unit which is connected with a CAN communication module and a K-LINE communication module, and the processing unit transmits low-frequency information to vehicle-mounted low-frequency equipment through a low-frequency signal transmitting module and then receives an RF high-frequency signal fed back by the vehicle-mounted equipment through an RF high-frequency signal; the low-frequency signal transmitting module communicates with the vehicle-mounted low-frequency equipment through a low-frequency antenna; the CAN communication module and the K-LINE communication module communicate with an automobile electronic control unit; and the RF high-frequency receiving module receives and decodes the RF high-frequency signal of a vehicle. The automobile diagnostic tool provided by the invention is small and exquisite in size, convenient to carry, easy to operate, and clear in information display, so that a user can conveniently perform on-line configuration of the vehicle, vehicle information reading, fault diagnosis and the like. At the same time, a menu can realize unlimited nesting if hardware resources allow, and menu data content and menu operation are in zero coupling.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to an automotive diagnostic tool. Background technique [0002] With the continuous development of automotive electronic technology, the number of various electronic control units on the vehicle is increasing, and each electronic control unit will perform self-diagnosis on its own control and associated circuits, and the diagnostic results are stored inside each electronic control unit EEPROM. If you need to know the current fault status of the car, you need to communicate with the electronic control unit to obtain the fault information inside the electronic control unit, which is convenient for checking and troubleshooting the car faults. However, the existing diagnostic tools can only read the fault codes of the car and cannot To realize the interactive operation with the electronic control unit, the existing diagnostic tools cannot meet the needs of daily car main...

AI Technical Summary

Problems solved by technology

If you need to know the current fault status of the car, you need to communicate with the electronic control unit to obtain the fault information inside the electronic control unit, which is convenient for checking and troubleshooting the car faults. However, the existing diagnostic tools can only read the fault codes of the car and cannot To realize the interactive operation with the electronic control unit, the existing diagnostic tools cannot meet the needs of daily car maintenance

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