Scan Tool - Displayed Input/Output Status

The scan tool also displays the modules input/output status. By selecting the modules input/output status display, the scan tool determines if the switched inputs/outputs are being properly interpreted. The display also indicates if the input/output has changed states. For example, when a door is closed, the scan tool displays the input status of the door ajar switch as INACTIVE. When the door is open, the scan tool reads ACTIVE. Use this type of information in order to diagnose a malfunction associated with a particular system input or an input that is shared with another system.