When the first automobiles were
designed, they were simple machines. When an early vehicle would break down,
you didn't need a car scanner, all that would be required is knowledge and a
few simple tools to perform the needed repairs. The basics of any internal
combustion engine were simple. The engine needed air, gas and timing to make a
simple explosion inside of the engines cylinders which is called combustion.
This combustion is what produces
power for the engine to move the vehicle. If any engine didn't have one of
these, it wouldn't run and therefore by knowing why it didn't have a necessary
component, one could fix that one item and the engine would be running smoothly
once again.
These basics of an internal
combustion engine remain the same. The difference with the earlier engines and
today's engines can be summed up by saying that today's engine are simply more
advanced. Having the knowledge and a few simple hand tools may not be enough to
get an engine running smoothly again.
The need for better fuel economy,
less emissions and the comforts of today's automobiles requires more computer
components than ever before. For these reasons, a car scanner is a much needed
and utilized tool in today's mechanics tool inventory.
A car scanner Like BMW Scanner, Mercedes Scanner can
simply be plugged into a cars computer jack that is normally located under the
dash on the driver's side of the vehicle. Once this tool is plugged in and
operating, it communicates with the car's computer system and relays
information back to the mechanic. This information is converted inside of the
scanner to show an "error code" that then can be identified to the
mechanic what is malfunctioning within the vehicle. Without this important
tool, a mechanic would be simply "guessing" at the problem with the
vehicle. This tool identifies the problem and tells the mechanic exactly the
parts that need to be replaced.
Even though this tool takes much of
the guess-work out of vehicle repairs, it still requires much knowledge of the
vehicle being work on. The scanner with flash the code which can vary from
model to model and the mechanic needs to understand what the code actually
identifies. The same code could flash on two different model cars and necessary
not mean the same malfunction. This is the kind of knowledge that the mechanic
needs to have a thorough understanding of.