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GLOSSARY
Additional Terminology + Acronyms
NON-CONTINUOUS MONITORS
The other twelve Monitors are “non-continuous” Monitors. “Non-continuous” Monitors perform and complete their
testing once per trip.
= Oxygen Sensor Monitor
= Oxygen Sensor Heater Monitor
= Catalyst Monitor
= Heated Catalyst Monitor
= EGR (Exhaust Gas Recirculation) System Monitor
= EVAP System Monitor
= Secondary Air System Monitor
NOTE: The following Monitors became standard beginning in 2010. The majority of
vehicles produced before this time will not support these Monitors.
= NMHC (Non-Methane Hydrocarbon Converting) Catalyst Monitor
= NOx/SCR Aftertreatment Monitor
= Boost Pressure System Monitor
= Exhaust Gas Sensor Monitor
= PM (Particulate Matter) Filter Monitor
ADDITIONAL TERMINOLOGY + ACRONYMS
n ABS = Anti-Lock Brakes
n DLC = Data Link Connector (vehicle’s data port)
n DTC = Diagnostic Trouble Codes
n KOEO = Key On, Engine Off
n KOER = Key On, Engine Running
n MIL = Malfunction Indicator Lamp (Check Engine Light)
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