AL329 User Manual V1.00

23
Retrieve I/M Readiness Status with One-Click I/M
Readiness Key
Press the One-Click I/M Readiness Key, to retrieve I/M readiness status.
The screen will display as below. The LEDs colors and the audio tones
indicate readiness status.
Figure 3-12 Sample I/M Readiness Screen
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.
The green, yellow and red LEDs provide a quick way to help you determine
if a vehicle is ready for an Emission Test.
The LED and audio tone are interpreted as below:
LED Interpretation
1) GREEN LED – indicates that engine systems are “OK” and operating
normally (the number of Monitors supported by the vehicle that have
run and performed their self-diagnostic testing is in the allowed limit.
MIL is off. ).There are neither stored nor pending DTCs. The vehicle is
ready for an Emission Test, and there is a good possibility that it can be
certified.
2) YELLOW LED – with MIL off, there may be three possible conditions to
cause the yellow LED to light.
 If a “Stored” Diagnostic Trouble Code is causing the yellow LED to
light, it is still possible that the vehicle will be allowed to be tested
for emissions and certified.
 If a “Pending” Diagnostic Trouble Code is causing the yellow LED
to light, it is still possible that the vehicle will be allowed to be tested
for emissions and certified.