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 ashing Right Arrow indicates additional information is available on the next
screen
• “
←
”: A ashing Left Arrow indicates additional information is available on the
previous screen
1. Select “3. I/M” from the main menu by pressing the ENTER button.
MENU:
3.1/M
•
If the Scan Tool is not connected yet, then refer to “Reading Codes” from 1 to 6 at
Paragraph 4.1.
2. Use the SCROLL button to view the status of the MIL light (“ON” or “OFF) and the
following monitors:
• MISFIRE--Misre monitor
• FUEL--Fuel System Monitor
• CCM--Comprehensive Components Monitor
• CAT-- Catalyst Monitor
• HCM--Heated Catalyst Monitor
• EVAP-- Evaporative System Monitor
• 2AIR-- Secondary Air Monitor
• A/C--A/C system Monitor
• O2S-- O2 Sensors Monitor
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