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By OBDBLOG64Gpp2u5 on July 5, 2011 | Leave a response
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OBDII Readiness Monitors
An important part of a vehicle’s OBDII system is the Readiness Monitors,which are
indicators used to find out if all of the emissions components have been evaluated by the
OBDII system. They are running periodic tests on specific systems and components to Categories
ensure that they are performing within allowable limits.
Currently,there are eleven OBDII readiness monitors (or I/M monitors) defined by the U.S. Auto Code Reader
Environmental protection agency(EPA). Not all monitors are supported by all vehicles and auto key programmer
the exact number of monitors in any vehicle depends on the motor vehicle manufacturer’s auto user manual
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Continuous Monitors OBDII PDF E-BOOK Download
Some of the vehicle components or systems are continuously tested by the vehicle’s OBDII
system, while others are tested only under specific vehicle operating conditions.the
continuously monitored components listed below are always ready:
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2.Fuel System
3.Comprehensive Components(CCM) July 2011 (71)
Once the vehicle is running,the OBDII system is continuously checking the above June 2011 (1)
components,monitoring key engine sensors,watching for engine misfire,and monitoring fuel
demands.
Non-Continuous Monitors - unlike the continuous monitors,many emissions and engine
system components require the vehicle to be operated under specific conditions before the Recent Comments
monitor is ready. These monitors are termed non-continuous monitors and are listed below:
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