OBD-II/EOBD
OBD Direct
115
($01) Display Current Data
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Home Screen:
OBD-II/EOBD > OBD Direct > OBD Diagnose >
Start Communication > ($01) Display Current Data
This service displays current emission related PID descriptions and values.
Figure 11-3
($02) Display Freeze Frame Data
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Home Screen:
OBD-II/EOBD > OBD Direct > OBD Diagnose >
Start Communication > ($02) Display Freeze Frame Data
This service provides a “snapshot” of critical parameter values at the time an
emission related DTC is set.
Typically the stored data frame is from the last DTC that occurred, however certain
DTCs that have a greater impact on vehicle emissions will have a higher priority. In
this situation, the freeze frame data for the DTC with the highest priority level will be
retained.
($03) Display Trouble Codes
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Home Screen:
OBD-II/EOBD > OBD Direct > OBD Diagnose >
Start Communication > ($03) Display Trouble Codes
This service displays a list of current emission related DTCs.
Figure 11-4
OBD-II/EOBD Codes have a priority according to their emission severity. The
priority of the code determines the illumination of the MIL and the code erase
procedure. Priority rankings vary across vehicle manufacturers, makes and
models.