Using the Diagnostic Tool
ERASING DIAGNOSTIC TROUBLE CODES (DTCs)
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Erasing DTCs does not fix the problem(s) that caused the code(s)
to be set. If proper repairs to correct the problem that caused the
code(s) to be set are not made, the code(s) will appear again (and
the check engine light will illuminate) as soon as the vehicle is
driven long enough for its Monitors to complete their testing.