Displaying & Reading Trouble Codes

A DTC is read in only one of following two ways:
^ The IPC Reading DTC feature.
^ Using a scan tool

Most all information in diagnostic tables will refer to the scan tool for diagnostic support. For details on using the on-board diagnostic feature to access and/or clear DTCs Refer to Vehicle On-Board Diagnostics.

To enter the Diagnostic Display function perform the following steps in order:
1. Turn ON the ignition switch, engine OFF.
2. Press the RESET button to acknowledge any warning messages present.
3. Press the OPTIONS button on the Driver Information Center (DIC) and hold.
4. While holding the OPTIONS button press the FUEL button 4 times within a 5 second period.
5. System will first enter automatic display mode followed by the manual display mode.