EOBD Application
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Menu options
Not all vehicle control modules will support all of the options available from the
menu. If an option is not supported the service tool will display either “Not
supported” or “Not available”. This is a limitation of the software on the vehicle
control modules and NOT a fault with the service tool.
MI Status/MIL Status
'MI Status' or 'MIL Status' displays the status of the malfunction indicator lamp for
each emissions related control module. If the status of the MI is set to On, one or
more DTCs will be stored in the vehicle's control modules and the instrument panel
MI will be illuminated.
View DTCs
This option allows any 'Confirmed', 'Pending' or 'Permanent' emission related DTCs
(Diagnostic Trouble Codes) to be viewed. If any DTC is present, it will be displayed
along with the identity of the Control Module (CM) that registered the fault.
If more than one DTC is displayed, the required DTC can be selected by using the
and keys. Press to select the DTC and display the description of the
code.
Dependent upon the DTC and the vehicle manufacturer, it may be necessary to
select the manufacturer and possibly also the model of the vehicle to enable the
correct description to be displayed. This setting will be retained while the service
tool is being used for EOBD operations but can be redefined or cleared under the
'Manufacturer' menu option.
NOTE: Permanent DTCs are confirmed DTCs and stored in non-volatile memory.
The intended use of these DTCs is to prevent a vehicle from passing an inspection
by erasing the DTCs prior to the inspection.
Erase DTCs
This option will clear all 'Confirmed' and 'Pending' emission related DTCs, clear
'Freeze Frame' DTCs and associated data, clear 'O2 Sensor Test' data, clear 'Non-
Continuous' test results and reset the status of the 'System Readiness' tests on the
control modules on the vehicle. The service tool will then perform a 'Read DTCs'
operation to verify that the DTCs have been erased.
NOTE: Permanent DTCs cannot be erased by a service tool or by disconnecting
power to the Control Module (CM). These DTCs shall be cleared by the CM once it
has determined the malfunction is no longer present.
Live Data
This option allows the user to view the current status of the emission system
components on the vehicle and can provide a quick way of telling if a component is
working correctly.
The list of components monitored under 'Live Data' can vary between
manufacturers and even between model.