Powertrain Control Module (PCM) - Remote Programming

1. Turn OFF the ignition.
2. Install the Tech 2 to the data link connector (DLC).
3. Turn ON the ignition, with the engine OFF.
4. Turn OFF all of the vehicle accessories.
5. With the Tech 2, select Service Programming.
6. Identify the vehicle information as requested by the Tech 2.
7. Select the type of module you are programming
8. Select the type of programming to be performed.
9. Verify the displayed VIN with the vehicle VIN. If the displayed VIN does not match the actual VIN, note the actual VIN and correct the VIN at the Techline terminal.
10. When the procedure is complete, select Exit Service Programming.
11. Turn OFF the Tech 2, and disconnect the Tech 2 from the vehicle.
12. Turn OFF the ignition.
13. Connect the Tech 2 to the Techline terminal.
14. Select Service Programming.
15. Select Tech 2 as the tool you are using.
16. Select the type of programming to be performed.
17. Verity the displayed VIN with the vehicle VIN. Correct the VIN as necessary.
18. Select the type of module you are programming.
19. Identify the type of programming that you are performing, as noted below.
^ Normal-This selection is for updating an existing calibration, or for programming a new controller.
^ Vehicle Configuration Index (VCI)-This selection is used if the vehicle VIN is not available, or if the Techline terminal does not recognize the VIN. You must contact the Techline Customer Support center in order to use this option.
^ Reconfigure-This selection is to reconfigure vehicle information, such as tire size and axle ratio changes.
20. Select the appropriate calibration tile.
21. Ensure that all connections are secure.
22. Select Reprog in order to initiate the download of the new calibration to the Tech 2.
23. After the download is complete, turn OFF the Tech 2.
24. Disconnect the Tech 2 from the Techline terminal.
25. Install the Tech 2 to the data link connector (DLC).
26. Turn ON the Tech 2.
27. Turn ON the ignition, with the engine OFF.
28. Select Service Programming.

IMPORTANT: If the programming procedure is interrupted or unsuccessful, do NOT turn OFF the ignition. Ensure that all the PCM and DLC connections are secure, and ensure that the Techline operating software is current. Attempt to reprogram the control module. If you cannot reprogram the control module, replace the control module. Refer to Powertrain Control Module (PCM) Replacement

29. Select Program.
30. After the download is complete, EXIT Service Programming.
31. Turn OFF the ignition for 30 seconds.
32. Turn OFF the Tech 2.
33. If a control module is replaced, you must perform the following service procedures:
^ CKP System Variation Learn Procedure
^ GM Oil Life System - Resetting
^ Idle Learn Procedure
^ Inspection/Maintenance (I/M) Complete System Set Procedure