A Basic Understanding of Automotive Diagnostic Scanners

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A Basic Understanding of Automotive Diagnostic
Scanners


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A Basic Understanding of Automotive Diagnostic
Scanners

• The profusion of scan tools and code readers
  available to the consumers through various
  e-Commerce websites, auto parts stores and
  retailers it is an undeniable that the automotive
  electronic equipment manufacturers have
  released that there is growing customer base for
  such products. Once these products were
  solely available to major dealers and experts,
  today an automotive diagnostic system are made
  accessible to owners and enthusiasts alike.

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Delving into auto scanners, and the reason for
their sudden need?

•  
• In the past, mechanics, vehicle owners and
  enthusiasts pretty much did quite well without
  them. However, today the following questions
  leave automobile hobbyists and even some
  professional repair technicians befuddled
•  
• Are they really necessary for executing a repair
  work?
• Are they useful at all?
• If they have emerged as an essential component in
  repair, how computer trouble codes and data
  streams which are produced by these diagnostic
  tools, are to be fathomed by a lay user?
• What are the specific functions of these
  diagnostic tools?
• From where did the need for these tools arise?

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Lets Understand the Basics First

• The user is able to receive and view information
  from a vehicles on-board engine management
  computer system, enabled by Both scanners Viz.
  Porsche Scanners VW/Audi Scanners and code
  readers.
• The major difference b/w scanners code readers
  is of the quantitative nature. Elaborating on
  the aforesaid automotive diagnostic information
  along with additional diagnostic information
  can be provided by scanners. They are also
  capable to be used for performing functional
  tests. Whereas, code readers have a comparatively
  limited functionality enabling the user to
  receive automotive diagnostic information, only.

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• Contrary to the aforesaid, a number of tasks
  could be performed by an onboard diagnostic
  engine management system, which are inclusive of
  but not limited to, the following
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• Controlling communication, lighting, navigation
  and other computer-related systems.
• Vehicle security.
• Managing climate control systems.
• Managing fuel-injection and ignition systems.
• Shifting automatic transmissions.

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• Nevertheless, monitoring the performance of
  emissions controls, components and systems and
  notifying the driver about their car being a
  source of harmful automobile emissions is the
  most important function an onboard diagnostic
  engine management system performs in tandem
  with scanners Viz. Porsche scanners and VW/Audi
  scanners and code readers. Code readers and
  scanners have only the technical capacity of
  reading the information generated by an
  on-board vehicle engine management computer
  system.
• Initially on-board vehicle engine management
  computer systems were built into vehicles by
  various automobile manufacturers. This was the
  first generation of On-Board Diagnostics
  (OBD-I).

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• It was developed in the early1980s. In doing so
  the intention of the vehicle manufacturers was to
  enable the driver to receive warning about any
  malfunction that occurred in the emissions
  control. This generation of On-Board Diagnostics
  was quite expensive wasnt standardized across
  automobile manufacturers. The majority of these
  scanners were produced in USA at that time.
• A myriad of cables and adapters were used by
  scanning tools such as Porsche scanners and
  VW/Audi Scanners. These wererequired to be
  plugged in to numerous data connectors installed
  in cars in order to retrieve diagnostic
  information generated by OBD-I systems. These
  on-board data connectors differed according to
  the manufactures, the year and the model.

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