The Tech 1 numeric keypad is used to enter information and navigate through the diagnostic procedures. Key functions are described below:
• YES/NO keys. These keys are used to answer questions posed by the Tech 1. They are also used to move to another pair of data parameters when data is being displayed.
• UP/DOWN arrow keys. These keys allow you to scroll up and down the display. The Tech 1 screen can only display four lines of information. Additional information beyond four lines is contained on secondary screens that are accessed using the arrow keys.
• G-9/F0-F9 keys. These shared-function keys are used to enter numerical data or to choose different test modes, as prompted by the display screen.
• ENTER key. This key is used to initiate or confirm an action when prompted by the display screen. When pressed for more than three seconds, the ENTER key will initiate the Tech 1 self test.
• EXIT key. This key is used to backup to previous displays or modes. When the EXIT key is pressed for more than three seconds, the Tech 1 will return to the beginning of the program.
