GMC Tech 2 User Manual page 95

SECTION VIIC
STEP 3: Transfer Data from the Tech 2 to the Control Module
3.1 With the Tech 2 and vehicle both off, connect the Tech 2 to the vehicle DLC
3.2 Power on the Tech 2. At the Tech 2 title screen, press [ENTER].
3.3 Turn the vehicle ignition to the "on" position (engine off).
3.4 At the Tech 2 Main Menu, select Service Programming System
3.5 Select "F1: Program ECU" on the Tech 2
programming data — VIN and software numbers
Continue. The Tech 2 will display the "Programming in Progress - Downloading calibration file"
screen (Figure VIIC-24).
3.6 When the transfer is complete, the Tech 2 will display the message "Programming Was Successful."
Press the Continue soft key to exit the program. Turn the vehicle ignition off first, then turn the Tech
2 off and disconnect it from the vehicle.
Be sure to verify successful reprogramming. Refer to the recommendations on the
(Figure
(Figure VIIC-22). The Tech 2 will display the new
(Figure VIIC-23). Verify, then select the soft key
RETURN TO MAIN MENU
SERVICE PROGRAMMING SYSTEM
(Figure III-23).
VIIC-13).
next page.
2005 Tech 2 User's Guide VII - 45