Self Test With New Generation Star Tester

For a detailed description of the New Generation STAR Scan Tool and the variety of tests that can be run, refer to the instruction manual provided with the tool.

The Diagnostic Test Mode Menu Selection provides access to EEC-IV format on-board Self-Tests. Self-Tests are run using Self Test Input (STI) and Self Test Output (STO) lines on the Powertrain Control Module (PCM). Diagnostic Trouble Code (DTC) definitions are provided if a vehicle has been selected from the Vehicle Entry Menu under Vehicle and Engine Selection menu.

Activating Key ON Engine OFF (KOEO) or Key ON Engine Running (KOER) Self-Test
1. Connect Self-Test adapter cable to LINK connector of NGS and Data Link Connector (DLC) and Self-Test Input (STI) connector on vehicle.
2. Select Diagnostic Test Mode from the main menu.
3. Select the desired Self-Test function. Selected Self-Test will be initialized and Self-Test control screen will be displayed.
4. Select Slow or Fast coded format with the key selection.
5. Pressing the START key will short STI to ground and start Self-Test and DTC acquisition.
6. Screen will display DTCs in tabular form with definitions after all fast DTCs are received or as received using slow code format, until all DTCs have been output by the PCM.
7. Pressing the STOP key will remove STI to ground and stop acquisition of DTCs. The first received DTC will be highlighted. As you move the highlighting through the DTCs, the definition for the selected DTC will be displayed in the lower box.
8. Press CANCEL to terminate Self-Test and to exit to the Diagnostic Test Mode menu.
9. Press CANCEL to return to the Main Menu.

NOTE: Pressing the STOP key (unlatching STI) or CANCEL trigger before all slow DTCs have been output will erase any Continuous Memory DTCs from PCM memory. Although, if fast code format is used, the DTC will already be displayed with DTC descriptions.