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Functional Buttons
The displayed Functional Buttons at this section of the screen varies
depending on the stage of operations. They can be used to navigate, save or
clear the diagnostic data, exit scanning as well as make other functional
controls. The functions of these buttons will be introduced respectively in the
following sections of the corresponding test operations.
Screen Messages
Screen messages appear when additional input is needed before proceeding.
There are mainly three types of on-screen messages as to their purposes:
Confirmation, Warning, and Error.
Confirmation Messages
Th
is
type
of
message
usually display
s
as an
“Information” screen
that
informs you when you are about to perform an action that cannot be
reversed or when an action has been initiated and your confirmation is
needed to continue.
When a user-response is not required to continue, the message
displays briefly
.
Warning Messages
This type of messages informs you when completing the selected action
may result in an irreversible change or loss of data. The typical example
of
this is the
“Erase Codes” message.
Error Messages
Error messages inform you when a system or procedural error has occurred.
Examples of possible errors include a disconnection or communication
interruption due to certain reasons.
Making Selections
The Diagnostics application is a menu driven program that presents a series
of choices one at a time. As you select from a menu, the next menu in the