On-Board Diagnostic Capabilities
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
When diagnostic mode is first entered, DIC will enter an automatic display sequence of all systems that communicate on serial data line. After each system is displayed, DIC will display the number of DTCs (current or history) set in that system. At any time during this automatic display sequence, the manual diagnostic mode may be selected.
In manual diagnostic mode, a specific module can be manually selected for diagnosis by pressing specific buttons on Driver Information Center (DIC). Only DTCs for that particular module will be displayed until another system is requested. See SELF-DIAGNOSITC SYSTEM for additional information.