MUCAR CS4 Bedienungsanleitung Seite 10

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Once the vehicle is running, the OBDII system is continuously checking the above
components, monitoring key engine sensors, watching for engine misfi re, and monitoring
fuel demands.
Non-Continuous Monitors -- - Unlike the continuous monitors, many emissions and engine
system components require the vehicle to be operated under specifi c conditions before the
monitor is ready. These monitors are termed noncontinuous monitors and are listed below:
1) EGR System
2) O2 Sensors
3) Catalyst
4) Evaporative System
5) O2 Sensor Heater
6) Secondary air Injection
7) Heated Catalyst
8) A/C system
2.5 OBDII Monitor Readiness Status
OBDII systems must indicate whether or not the vehicle's PCM's monitor system has
completed testing on each component. Components that have been tested will be reported
as "Ready", or "Complete", meaning they have been tested by the OBDII system.
The purpose of recording readiness status is to allow inspectors to determine if the
vehicle's OBDII system has tested all the components and/or systems. The Powertrain
Control Module (PCM) sets a monitor to "Ready" or "Complete" after an appropriate drive
cycle has been performed. The drive cycle that enables a monitor and sets readiness
codes to "Ready" varies for each individual monitor. Once a monitor is set as "Ready"
or "Complete", it will remain in this state. A number of factors, including erasing of
Diagnostic Trouble Codes (DTCs) with a code reader or a disconnected battery, can result
in Readiness Monitors being set to "Not Ready". Since the three continuous monitors
are constantly evaluating, they will be reported as "Ready" all of the time. If testing of a
particular supported non-continuous monitor has not been completed, the monitor status
will be reported as "Not Complete" or "Not Ready."
In order for the OBD monitor system to become ready, the vehicle should be driven under
a variety of normal operating conditions. These operating conditions may include a mix of
highway driving and stop and go, city type driving, and at least one overnight-off period.
For specifi c information on getting your vehicle's OBD monitor system ready, please
consult your vehicle owner's manual.
2.6 OBDII Defi nitions
Powertrain Control Module (PCM) -- OBDII terminology for the on-board computer that
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