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OBD-II/EOBD OBD-II/EOBD Menu
($02) Display Freeze Frame Data
Freeze frame data provides a “snapshot” of critical parameter values at the time a DTC set.
This item is used to display freeze fame data for any stored emission related diagnostic trouble
code (DTC). In most cases the stored frame is the last DTC that occurred. Certain DTCs, those
that have a greater impact on vehicle emission, have a higher priority. In these cases, the highest
priority DTC is the one for which the freeze frame records are retained.
($03) Display Trouble Codes
This is used to display any stored emission related DTCs reported by the ECM. The display is
similar to a Scanner code display (see Display Codes‚ on page 26 for details) The list does not
include enhanced DTCs in this mode.
($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 5-6).
Figure 5-6 Clear codes confirmation
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.
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