Remote Programming

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

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

30. Select Program.
31. After the download is complete, EXIT Service Programming.
32. Turn OFF the ignition for 30 seconds.
33. Turn OFF the Tech 2.
34. The following procedures must be completed after replacing and programming the PCM:
^ Reset the fluid life indexes. Refer to GM Oil Life System - Resetting in Maintenance and Lubrication.
^ Perform the Vehicle Theft Deterrent Password Learn procedure. Refer to Programming Theft Deterrent System Components in Theft Deterrent.
^ Perform the crankshaft system variation learn procedure. Refer to CKP System Variation Learn Procedure
^ Perform the Throttle Position Sensor Learn procedure. Refer to Throttle Position (TP) Sensor Replacement on page 6-102a
^ Perform the Idle Air Control (IAC) Valve Learn procedure. Refer to Idle Air Control (IAC) Valve Replacement on page 6-1024
^ Reset the Inspection/Maintenance (I/M) System Status. Refer to Inspection/Maintenance (I/M) Complete System Set Procedure.