With New Generation Star Tester

Connect the New Generation Star (NGS) tester to the vehicle, refer to Visual Inspection and Test Preparation. Connect the power cable connector to the battery with the adapter. The NGS tester will perform an initialization and brief internal system memory check. The NGS has 24 hour memory storage. During initialization a message of M***** indicates that the vehicle selection and recorded data from the last testing session are stored in memory. A message of B***** indicates that memory time has been exceeded and no data is stored from the last testing session. Following initialization, the Main Menu will be displayed.

1. Screen Display #1 (Main Menu). Key ON. Turn the menu dial to move the highlighter to VEHICLE & ENGINE SELECTION. Press TRIGGER. Screen display #2 will appear.

2. Screen Display #2. Turn the menu dial to move the highlighter to SELECT NEW VEHICLE YEAR & MODEL. Press TRIGGER. Screen display #3 will appear.

3. Screen Display #3. Turn the menu dial to move the highlighter to the proper model year. Press TRIGGER. Screen display #4 will appear.

4. Screen Display #4. Turn the menu dial to move the highlighter to the proper engine/vehicle. Press TRIGGER. Screen display #5 will appear.

5. Screen Display #5. Turn the menu dial to move the highlighter to the selection desired. Press TRIGGER. Screen display #6 will appear.

6. Screen Display #6. Turn the menu dial to move the highlighter to DIAGNOSTIC DATA LINK. Press TRIGGER. Screen display #7 will appear.

7. Screen Display #7. Turn the menu dial to move the highlighter to PCM - POWERTRAIN CONTROL MODULE. Press TRIGGER. Screen display #8 will appear.

8. Screen Display #8. Turn the menu dial to move the highlighter to DIAGNOSTIC TEST MODE. Press TRIGGER. Screen display #9 will appear.

9. Screen Display #9. Turn the menu dial to move the highlighter to MECS SELF TEST. Press TRIGGER. Screen display #10 will appear.

The Switch Monitor Test may be performed if no diagnostic trouble codes appear during MECS Self Test. The LED indicator for the Switch Monitor Test is located on the Super MECS adapter.

10. Screen Display #10. Press the START key (number 3), turn the ignition OFF, press the TRIGGER key, turn the ignition ON or start the engine. This will short STI to ground and start MECS Self Test (diagnostic trouble code detection/retrieval). As an example, Screen display #11 will appear if codes 10 and 12 are present. Press the STOP key (number 3) to end Diagnostic Test Mode.

11. Screen Display #11. Diagnostic trouble codes (if any) will appear on the screen display. After all codes are received, they will start repeating. Press the STOP key (number 3). This remove the STI short from ground and stop the Diagnostic Test Mode. Screen display #12 will appear.

12. Screen Display #12. The first diagnostic trouble code received will be highlighted. The definition of this highlighted code will appear on the lower box of the display screen. Turn the menu dial to see the definitions of the other displayed diagnostic trouble codes.

13. Press CANCEL to terminate MECS Self Test and to return to the diagnostic test mode selection menu (Screen display #8). Press CANCEL twice to return to the Main Menu (Screen display #1).

- If no codes are stored and engine starts, see Key On Engine Running (KOER) Self Test. Key On Engine Running (KOER) Self-Test

- If any codes are received, see Erase and Retest.

- If scan tool tester always displays STO LO, see STI - Self Test Input. STI - Self Test Input

- If no codes are received and engine does not start, see No Start Symptom Test. No Start Symptom Test