1. InfoTech

2. Enter Scroll to Repair Information Scroll to Repair Information and press Enter.

3. Enter Scroll to InfoTech Scroll to InfoTech and press Enter.

4. Press the No soft key Press the No soft key, as calibration is unnecessary when only using InfoTech without the scope.

5. Enter Scroll to Vehicle Entry Scroll to Vehicle Entry and press Enter.

6. Scroll to GM and press Enter. Enter Scroll to GM

7. Enter Scroll to 2003 Scroll to 2003 and press Enter.

8. Enter Scroll to Chevrolet Scroll to Chevrolet and press Enter.

9. Enter Scroll to Car Scroll to Car and press Enter.

10. Enter Scroll to Impala Scroll to Impala and press Enter.

11. Enter Scroll to Base Scroll to Base and press Enter.

12. Enter Scroll to 3.4L, VIN E Scroll to 3.4L, VIN E and press Enter.

13. Enter Scroll to Engine Scroll to Engine and press Enter.

14. Enter Scroll to Component Tests Scroll to Component Tests and press Enter.

15. Enter Scroll to Heated Oxygen Sensor Scroll to Heated Oxygen Sensor and press Enter.

16. Scroll to HO2S No. 1 and press Enter. Enter Scroll to No. 1

17. Press the Repair Info soft key The display describes how to hook up the scope for testing. To find other hook up information, press the Repair Info soft key.

18. Scroll to Ckt Diagram, and press Enter. Scroll to Ckt Diagram Enter

19. Press the Back soft key Press the Back soft key to complete the scope lead hook up.

20. Exit