Enhancement type vehicle failure code reading card

Abstract

The invention provides an enhancement type vehicle failure code reading card. The card comprises a micro-control unit, a signal channel switching circuit, a diagnosis interface circuit, a display module, an input module, a sound-light alarm module, an interface module, a storage module and a vehicle diagnosis interface, wherein the vehicle diagnosis interface is connected with a vehicle diagnosis base, the input module comprises a plurality of quick diagnosis function keys, the plurality of quick diagnosis function keys can be used for diagnosing basic systems of a vehicle quickly, the micro-control unit controls the signal channel switching circuit to be switched to a signal pin corresponding to the vehicle diagnosis base, communication between the micro-control unit and main basic systems of the vehicle can be finished, and the micro-control unit displays diagnosis results in the display module after diagnosis. By the aid of the card, automatic diagnosis of electric control systems of different vehicles can be achieved respectively through one-key operation, non-professional users can operate the card conveniently, simultaneously, the time is saved in terms of diagnosis and maintenance of vehicles, and the working efficiency is improved.

Description

technical field [0001] The invention relates to an automobile fault detection device, in particular to an enhanced automobile fault code reading card in the detection device. Background technique [0002] With the rapid development of modern automobile technology, the structure of the electronic control systems of automobiles is becoming more and more complex, and high technology, especially electronic technology and computer technology, has been more and more widely used in automobiles. The intensive application of these high technologies in automobiles not only greatly improves the safety and comfort of automobiles, but also brings great challenges to the detection and maintenance of automobiles in the future when faults occur. In today's increasingly fierce competition, all walks of life are facing tangible or invisible competitive pressures, and the traditional automotive electronics maintenance industry is no exception. As a vehicle diagnostic instrument that cannot be...

AI Technical Summary

Problems solved by technology

Although comprehensive automotive fault diagnosis equipment can detect multiple systems, its menu operations are too complicated, requiring professional training for operators, and the cost is too high, which is not conducive to the large-scale promotion of this type of product

If an enhanced code-reading tool capable of diagnosing ABS and SRS systems can be developed on the basis of the existing miniaturized automobile fault code-reading card, it will be able to solve the problem that the comprehensive fault diagnosis equipment is bulky, not portable, high in cost, and difficult to use. problems, provide affordable and easy-to-use miniaturized diagnostic tools for auto repair companies or individual car owners

The traditional OBD code reading card can only diagnose cars that support OBD standards, and can only diagnose the engine electronic control system, but it cannot support other systems other than the four basic electronic control systems of modern cars, such as ABS or SRS systems.

Although the comprehensive diagnostic equipment can diagnose the electronic control system of the car except the engine, it is not convenient for users, especially individual car owners, due to its slow diagnosis speed and many operation steps.

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