What Are the Basic Methods of Automotive Diagnosis?
1 Answers
Basic methods of automotive fault diagnosis: Inquire with the user about the time, symptoms, and circumstances when the fault occurred, the possible causes, and whether any repairs or disassembly have been performed. Initially determine the scope and location of the fault. Retrieve the fault code and identify the content of the fault. Based on the fault range indicated by the fault code, conduct repairs, paying special attention to whether connectors are loose or detached and whether wire connections are correct. After completing the repairs, verify whether the fault has indeed been resolved. If the fault code cannot be retrieved or if the fault content cannot be identified after retrieval, roughly determine the fault range based on the symptoms and use a method of checking the working performance of each component one by one to eliminate the fault. Currently, there are basically two diagnostic methods for automotive faults: one is the manual intuitive experience diagnostic method, and the other is the instrument and equipment diagnostic method. The instrument and equipment diagnostic method involves obtaining performance and fault information parameters of the vehicle without disassembling the assembly, comparing them with the technical condition of a normal vehicle, and providing conclusions on technical performance and faults. With the application of electronic information and computer technology in automobiles, diagnostic instruments and equipment for automotive faults are becoming increasingly sophisticated, and more advanced instruments are being used in automotive fault diagnosis. Instruments and equipment enable fast and highly accurate fault diagnosis, can detect latent faults, and can also predict the service life of assembly components.
