OBD-II/EOBD OBD-II/EOBD Menu
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($04) Clear Emissions Related Data
This item is used to clear all emission related diagnostic data, such as DTCs, freeze
frame data, and test results, from the memory of the selected ECM.
z To clear emission related Data:
1. Select Clear Emissions Related Data from the menu.
A confirmation message displays to help prevent loss of any vital data
(Figure 9-7).
Figure 9-7 Clear codes confirmation message
2. Continue from the confirmation message.
The screen updates several times as ECM memory is erased, then a “data has
been cleared” message displays.
3. Select Continue to return to the Select Service menu.
($05, 06, 07) Display Test param./Results
This option opens a submenu of parameters and test results from various sensors,
monitor test results, and a record of DTC setting conditions detected during the last
drive cycle. The submenu includes:
• ($05) Oxygen Sensor Monitoring
• ($06) On-board Monitored Systems
• ($07) DTCs Detected During Last Drive
($05) Oxygen Sensor Monitoring
This option opens a menu of tests available for checking the integrity of the oxygen
(O2) sensors. Making a selection displays all of the pertinent O2 sensor parameters
for the specific test. The test identification (ID) displays at the top of the data list.
($06) On-board Monitored Systems
This option opens a menu of tests from the monitored systems. The available data
is for specific systems and components that the on-board diagnostic system
monitors continuously, such as misfire, or non-continuously, such as the catalyst
system. Making a menu selection displays the test results.
($07) DTCs Detected During Last Drive
This test opens a record of any DTCs that set during the last completed drive cycle.
Select to open the DTC list.
($08) Request Control of On-board System
This service enables bidirectional control of the ECM. This service allows the
diagnostic tool to control the operation of an on-board system, test, or component.
($09) Read Vehicle Identification
The purpose of this service is to enable the diagnostic tool to request and display
vehicle-specific information, such as the vehicle identification number (VIN), the
calibration identification, and the calibration verification number (CVN), of the test
vehicle. Select a menu item to retrieve the information. Select Return to go back to
the menu.
($09) In-use Performance Tracking
This option displays the “In-use Performance Tracking” of data. It is a record of the
number of times each of the monitor tests have been completed. Select Return to
go back to the menu.
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