The Diagnostic Executive

The diagnostic executive is a unique segment of the software which is designed to coordinate and prioritize the diagnostic procedures as well as define the protocol for recording and displaying their results. The main responsibilities of the diagnostic executive are:
^ Monitoring the diagnostic test enabling conditions.
^ Requesting the Malfunction Indicator Lamp (MIL).
^ Illuminating the MIL.
^ Recording the Pending, Current, and History DTCs.
^ Storing and erasing the Freeze Frame data.
^ Monitoring and recording the test status information.