35
5)
If you don’t want to save the freeze frame data, press
ESC
button to return to previous screen.
5.5
Retrieving 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
compliance to a state emissions program.
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. Times for
reset vary depending on 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 may be
allowed to be “Not Ready” to pass the emissions inspection.
“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 that vehicle.
1)
Use the
UP/DOWN
scroll button to select
I/M Readiness
from
Diagnostic
Menu
and press
OK
button. (Figure 5.3)
2)
Wait a few seconds while the scan tool validates the PID MAP.
