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Retrieve I/M Readiness Status
I/M Readiness
function is used to check the operations of the Emission
System on OBD2 compliant vehicles. It is an excellent function to use prior
to having a vehicle inspected for state emissions compliance.
CAUTION:
By clearing trouble codes you also clear the readiness status for
the individual emission system readiness tests. In order to reset these
monitors, the vehicle must be driven through a complete drive cycle with no
trouble codes in memory. Amount of time needed for reset vary be vehicle.
Some latest vehicle models may support two types of
I/M Readiness
tests:
A.
Since DTCs Cleared
–
indicates status of the monitors since the DTCs
are erased.
B.
This Drive Cycle
–
indicates status of monitors since the beginning of
the current drive cycle.
An I/M Readiness Status result of “NO” does not necessarily indicate that
the vehicle being tested will fail the state I/M inspection. For some states,
one or more such monitors m
ay be allowed to be “Not Ready” to pass the
emissions inspection.
Press the
One-Click I/M Readiness Key,
to retrieve I/M readiness status.
The screen will show as below. According to different readiness status, the
color LEDs will illuminate and different audio tones will be heard.
OK
– indicates that a particular monitor being checked has completed
its diagnostic testing.
INC
– indicates that a particular monitor being checked has not
completed its diagnostic testing.
N/A
– the monitor is not supported on the vehicle.
1) Use the
UP/DOWN
scroll button to select
I/M Readiness
from
Diagnostic
Menu
and press
OK
button.
2) Wait a few seconds while the scan tool validates the PID MAP.
3) If the vehicle supports both types of tests, then both types will be
shown on the screen for selection.