Diagnostic Trouble Code (DTC) Displaying: Notes

2001 Chevrolet Cavalier LS, 2.4 TSECTION Notes
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

This vehicle is equipped with an on-board diagnostic display feature capable displaying DTCs. By selecting specific buttons on the IPC, DTCs are displayed on the IPC 20 character display unit. This feature allow DTCs to be read or cleared without the use of a scan tool. When the diagnostic mode is first entered, the IPC will enter into an automatic display sequence and will display all systems that communicate on the serial data line. After each system is displayed, the IPC will display the number of DTCs (current or history) for that system. The manual diagnostic mode may be selected at any time during the automatic DTC display sequence by pressing any button on the DIC except the E/M button. In the manual diagnostic mode, you can manually select what module to display. In this mode, DTCs are only displayed for a specific module and will not proceed to the next until requested. Both diagnostic mode displays will also indicate if the DTC is a current DTC (malfunction present now) or a history DTC (malfunction has occurred, but is not present now) with a C or an H, respectively. Diagnostics will automatically be exited if no DIC buttons are pressed for 60 seconds.

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