26
NOTE
Tapping
○
i button beside the function name to display additional function information.
Select a function option to continue.
Read Codes
Erase Codes
I/M Readiness
Live Data
Freeze Frame
Vehicle Information
O2 Monitor Test
On-Board Monitor
Evap System(mode$8)
NOTE
Some functions are supported only on certain vehicle manufacturers.
4.6.2 Function Descriptions
This section describes the various functions of each diagnostic option:
Read Codes
When this function is selected, the screen displays all the Stored, Pending and
Permanent Codes and Pending Codes. You can save the fault code information of the current
page through the save button in the lower right corner.
Stored codes are the current emission related DTCs from the ECM of the vehicle.
OBDII/EOBD Codes have a priority according to their emission severity, with higher priority
codes overwriting lower priority codes. The priority of the code determines the illumination of
the MIL and the codes erase procedure. Manufacturers rank codes differently, so expect to
see differences between makes.
Erase Codes
This option is used to clear all emission related diagnostic data such as, DTCs, freeze
frame data and manufacturer specific enhanc
ed data from the vehicle’s ECM.
A confirmation screen displays when the clear codes option is selected to prevent
accidental loss of data. Select Yes on the confirmation screen to continue or No to exit.
I/M Readiness
This function is used to check the readiness of the monitoring system. It is an excellent
function to use prior to having a vehicle inspected for compliance to a state emissions program.
Selecting I/M Readiness opens a submenu with two choices:
Since Codes Cleared
– displays the status of monitors since the last time the codes are
