On-Board Diagnostic System: Notes

Vehicle is equipped with an on-board diagnostic display feature capable of displaying and/or clearing DTCs. By selecting specific buttons on the IPC, DTCs are displayed on the IPC's 20-character display unit. This allows DTCs to be read or cleared without the use of a scan tool.

When diagnostic mode is first entered, 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, IPC will display the number of DTC(s) (current or history) for that system.

Manual diagnostic mode may be selected at any time during automatic DTC display sequence. In manual diagnostic mode, technician can manually select what module is going to be displayed by pressing specific buttons on the IPC. See IPC BUTTON FUNCTIONS  table. In this mode, DTC(s) are only displayed for a specific module and will not proceed to next until requested.

Both diagnostic mode displays will also indicate if 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 IPC buttons are pressed for longer than 60 seconds.