Autel Autolink AL301 - Manual (Page 16)

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HOT KEY: Pressing and Holding the SCROLL button for about 3
seconds will allow you to erase the DTCs more quickly than
through the main menu.
4.3 Retrieving I/M Readiness Status
IMPORTANT: 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.
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.
“YES”--All monitors supported on the vehicle have completed
their diagnostic testing and the MIL light is not on.\
“NO”--At least one monitor supported on the vehicle has not
completed its diagnostic testing, and (or) the ―Check
Engine‖( MIL) light is on.
“READY”—Indicates that a particular monitor being checked
has completed its diagnostic testing.
“Not RDY(NOT READY)”—Indicates that a particular monitor
being checked has not completed its diagnostic testing.
“N/A”—The monitor is not supported on that vehicle.
“→”-- A flashing Right Arrow indicates additional information is
available on the next screen.