Emissions Test.
● Yellow - The tool finds a possible problem. It indicates the following
two conditions:
(1) Pending DTCs exist. Please check the I/M Readiness test
result screen and use the Read Codes function to view detailed codes
information.
(2) Some of the vehicle’s emission monitors have not working
properly. If the I/M Readiness screen shows no DTC (including
pending DTC), but the Yellow LED is still illuminated, it indicate a
“Monitor Has Not Run” status.
●Red- Indicates some problems exist with one or more of the
vehicle’s system, and the vehicle is not ready for an Emissions Test.
As well there are DTCs found. The MIL lamp on the vehicle’s
instrument panel will light steady. The problem that is causing the
illumination of Red LED should be fixed before an Emissions Test or
driving the vehicle further.
The built-in beeper works with the colored LED simultaneous, as an
assistance to reflect the I/M Readiness test results:
●Green - two long beeps.
●Yellow - short, long, short beeps.
●Red - four short beeps.
NOTE
The built-in beeper which makes different tones corresponding to
different LED indicators is invaluable when the test is performed while
driving or in bright areas where LED illumination may not be visible.
To retrieve I/M Readiness Status data by typical way:
1.Scroll with UP/DOWN key to highlight I/M Readiness from Diagnostic
Menu and press the
OK key. If vehicle supports both types of monitors, a screen for monitor
type selection displays. Select a monitor type and press the OK key.
