Use and Care Manual

The Following Monitors Are To Be Used For
Compression (Diesel) Ignition Engines Only:
8. EGR System
9. NMHC Catalyst
10. NOx Aftertreatment
11. Boost Pressure System
12. Exhaust Gas Sensor
13. PM Filter
2.5 OBD II Monitor Readiness Status
OBD II systems must indicate whether or not the vehicle's PCM
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 OBD II system.
The purpose of recording readiness status is to allow
inspectors to determine if the vehicle's OBD II system
has tested all the components and/or systems.
The power-train 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 an
d 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 Scan Tool 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.”
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