Auto detection and maintenance
Abstract: The modern automobile maintenance technology has become increasingly high tech,  from  electronic  products  in  automotive  applications,  automotive  diagnostic equipment to the modern use of the Internet in the vehicle maintenance information on the  application,  and  maintenance  management  software,  play  in  the  automotive  repair business the role, all reflect the characteristics of modern high-tech vehicle maintenance. Vehicle maintenance is no longer a simple part repair, accurate diagnosis of the fault lies, is the highest level of the modern automobile maintenance. Accession to the WTO under the new situation, their own emphasis on improving the quality of auto repair, auto repair business to change the original way to make our auto  repair  industry  has been  rapid development.
Keywords: automobile; maintenance features; progress
Introduction
As science and technology of modern automobile industry and the rapid development of  ever-changing new technology, new materials, new technology is widely used, especially in electronic technology, the application of hydraulic technology in the car, so that today's car is a culmination of a variety of advanced technologies, innovative chic renovation of the car from time to time . Diagnosis and modern cars is no longer seeing , ears , hands touch, car  maintenance  is  no  longer  a  master train  an apprentice  in a trade,  but the process of using a variety of new technologies. With the rapid development of automotive technology increasingly  showing  a  high-tech  features  of vehicle  maintenance,  vehicle maintenance concept with the same time are constantly updated.
1, the characteristics of the modern automobile maintenance
1.1 Characteristics of Fault Diagnosis
Hyundai is not a simple mechanical products , nor is the initial transport, but rather evolved from  the  original  car to  a  high-tech  crystal.  Especially  electronic  technology, computer technology,  rapid  development,  so  that  the  car  is  improving  the  degree  o
f technology. Electronic fuel injection system engine (EFIE), ABS anti-lock braking system, SRS airbag  system,  electronically  controlled  automatic  transmission  system  (AT), accelerate the slide to adjust the system  (ASR),  automatic  air conditioning  (A / C),  E suspension system  (ECS),  power  steering  system,  automatic  cruise  control,  central locking and alarm system, TCS traction power systems and self-diagnosis system, the assembly ofservice fault pieces by the electronic control unit (ECU) full control, electronic control unit self-diagnostic function  that  can  record  failures,  and  to  the  code  stored  in  the  ECU memory. Through the decoder from the ECU memory to read out the stored trouble codes, to determine the location and failure to provide online troubleshooting help .
1.2 Maintenance Tool Features
With the development  of automotive technology, maintenance  equipment  also will produce a qualitative change. Maintenance equipment, automobile production, more use of equipment is no longer a class-based. Since the 90s of the 20th century, groups of

advanced  testing  equipment  and  instruments  imported  cars  into  the  country. Wheel alignment,  decoders,  car  oscilloscope,  automotive  electric  meter,  engine  analyzer, exhaust gas tester and computer balancing machine, these old people are very familiar with  the  testing  equipment,  has  become  an  indispensable  tool  for  modern service enterprises [4  ].  These  testing  equipment  itself  is  high-tech  products,  electronic  test technology, computer technology, advanced integration objects. Used to manipulate the testing equipment, technicians  need to go through  rigorous training,  and To master a foreign language  and  computer  technology  to  master  the  correct way to  use the full functionality testing equipment. This high-tech modern automotive testing equipment, so the technology content of the modern automobile maintenance greatly improved.

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