User guide

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Stored and Pending Diagnostic Trouble Codes
The Stored Diagnostic Trouble Codes list will enumerate any
trouble codes that the connected vehicle has stored in its computer.
If a DTC is listed in the Stored Diagnostic Trouble Codes, then the
Check Engine graphic in the upper right-hand corner of the screen
will have the word "Check" inside it. Any DTCs enumerated in the
Stored Diagnostic Trouble Codes list are there because the compo-
nents or systems in question have failed their respective test several
times and are considered faulty.
The Pending Diagnostic Trouble Codes list will enumerate any
trouble codes that the connected vehicle has identified as potential
problems, but have yet to be elevated to Stored Diagnostic Trouble
Codes. Any DTCs enumerated in the Pending Diagnostic Trouble
Codes list are there because the components/systems in question
have failed their respective test at least once, but less than the num-
ber of times to be considered faulty. A DTC reported here does not
necessarily indicate a faulty component/system. If the component/
system continues to fail it will be reported in the Stored Diagnostic
Trouble Codes list and the MIL indicator will be illuminated. The
intended use of this data is to assist the service technician after a
vehicle repair, and after clearing diagnostic information, by report-
ing results from a single drive cycle. If no fault is present on the
next trip, the Pending DTC will automatically clear itself. (Except
in the case of a severe Misfire Monitor fault.)
A "flashing" MIL means that there is a severe misfire
occurring. See Misfire in Appendix B for further
details.
The vehicle is scanned for non-continuous onboard
system test results changes in one minute
intervals.
Note: Some vehicle manufacturers don’t differentiate
between the Stored and Pending DTCs. The same
DTC is listed in both Stored and Pending lists.