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1. Menu Title – displays the menu heading of the Main Section.
2. Battery Icon – displays the vehicle’s voltage status.
Main Section
The Main Section of the screen varies depending on the stage of operations.
The Main Section can display vehicle identification selections, the main menu,
test data, messages, instructions and other diagnostic information.
Functional Buttons
The displayed Functional Buttons vary depending on the stage of operations.
Functional buttons can be used to navigate, to save or clear the diagnostic data,
to exit scanning and to perform a number of other control functions. The use of
these buttons will be discussed in detail in the following sections of the
corresponding test operations.
4.4.2 Screen Messages
Screen messages appear when additional input is needed before proceeding.
There are three main types of on-screen messages: Confirmation, Warning,
and Error.
Confirmation Messages
This type of messages usually displays as an “Information” screen, to inform
the user that a selected action cannot be reversed or when an action has been
initiated and confirmation is needed to continue.
When a user-response is not required to continue, the message displays briefly.
Warning Messages
This type of messages displays a warning that a selected action may result in
an irreversible change or loss of data. An example of this type of message is
the “Erase Codes” message.
Error Messages
Error messages display when a system or procedural error has occurred.
Examples of possible errors include a disconnection or communication
interruption.
4.4.3 Making Selections
The Diagnostics application is a menu driven program that presents a series of
