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1) READ DTCs
The READ DTCs function allows the Scan Tool to read the DTCs from
the vehicle’s control modules. DTCs are used to help determine the
cause of a problem or problems in the vehicle. These codes cause the
control module to illuminate the malfunction indicator lamp (MIL)
when emission-related or driveability fault occurs. MIL is also known
as service engine soon or check engine light.
READ DTCs can be done with the key on engine off (KOEO) or with
the key on engine running (KOER).
Press button the screen
will change to:
Press
button, View more
help information