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Onboard Diagnostics
OBD2 MONITORS
Name of
Monitor
Comprehensive
Component Monitor
Misfire Monitor
(Type 1 and 3)
Misfire Monitor
(Type 2)
Fuel System Monitor
Catalytic Converter
Monitor
Oxygen Sensor
Monitor
Oxygen Sensor
Heater Monitor
Exhaust Gas
Recirculation (EGR)
Monitor
Evaporative
Emissions Controls
Monitor
Secondary Air
System (AIR) Monitor
NMHC Monitor
Nox Adsorber Monitor
Boost Pressure
System Monitor
Exhaust Gas Sensor
Monitor
PM Filter Monitor
22
A
B
Continuous
1
Continuous
1
Continuous
Continuous
1
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
Once per
1
trip
C
D
2
1
3 - similar
2
1
conditions
3 - similar
1
conditions
3 - similar
1 or 2
1
conditions
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
2
1
3 trips
E
F
3
40
80
80
80
40
40
40
40
40
40
40
40
40
40
40
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