What is EOBD?
EOBD or OBDII (OBD-2)?
What is EOBD2?
an abbreviation of European On-Board Diagnostics.
petrol cars sold within Europe since 1 Jan 2001, and diesel cars manufactured
from 2003, must have on-board diagnostic systems to monitor engine emissions.
were introduced in line with European Directive 98/69/EC to monitor
and reduce emissions from cars.
cars must also have a standard EOBD diagnostic socket that provides access
to this system (as shown below).
on the pins used within the port, please click
latest scan tools and code readers can be relied upon to read the diagnostic
information through the EOBD socket.
Engine' warning light on the dashboard is often the first an owner knows
about a problem with their car.
very little information to the owner, or to the garage asked to investigate
modern tools, skilled technicians should be able to diagnose and solve
many of the problems, which prior to this, required the sophisticated
console tools of main dealers.
of European on-board diagnostics standards has opened up new opportunities
for car garages and owners.
of low-cost tools are now available to read and clear error codes, to
view live/stored readings from sensors within the car, and to switch off
the 'Check Engine' light.
information is available?
monitor and store information from sensors throughout the car, e.g. air
flow sensors and oxygen sensors.
outside an acceptable range, trigger a Diagnostic Trouble Code (DTC).
New diagnostic tools can help you read and interpret these codes, and
view the live sensor output.
or OBD II?
Diagnostics, or OBD, was the name given to the early emission control
and engine-management systems introduced in cars. There is no single OBD
standard - each manufacturer often using quite different systems (even
between individual car models).
have been developed and enhanced, in line with United States government
requirements, into the current OBD II standard.
II Federal requirements apply to cars sold in the United States from 1996.
the European equivalent of the American OBD II standard, which applies
to petrol cars sold in Europe from 2001 (and diesel cars 3 years later).
information on why OBDII tools will only work with 2001 and newer petrol
cars in Europe, and not with all UK and European cars from 1996 onwards,
please click here.
not a new version of EOBD.
stands for 'European On-Board Diagnostics', EOBD2 actually stands for
'Enhanced On-Board Diagnostics, Second Generation'.
to refer to manufacturer-specific features available on some OBDII/EOBD
tools to access additional parameters/information from a car, over and
above the normal parameters and information available within the EOBD/OBDII
are normally highly manufacturer-specific, and will usually only be available
for a certain car manufacturer, e.g. Ford.
as such, no 'EOBD2 cars', i.e. cars that require an EOBD2 tool to access
their diagnostics information. EOBD2 functonality might however allow
more information to be extracted from an EOBD/OBDII compliant car.