General Motors Tech2 User Guide
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cannot be programmed. You would select Pass-Thru to perform SPS without
disconnection from the vehicle or the computer.)
• Under “Select Programming Process,” select Reprogram ECU or Replace and
Program ECU, depending on whether you are reprogramming an existing
module or replacing a module.
• Under “Select ECU Location,” select Vehicle or Off Board Programming
Adapter (OBPA), depending on whether you are performing on-vehicle or off-
board programming.
2.5
After making selections, select Next.
2.6
Confirm connections and select Next on the Preparing for Communication screen.
IMPORTANT:
If you answered NO to the VIN in step 1.7, a box may appear stating
“The ECU could be a service ECU.” Click OK.
2.7
A Validate VIN screen will appear. After confirming and/or entering the correct VIN,
select Next.
2.8
A Supported Controllers screen will appear asking you to identify the type of
controller being programmed. Some vehicles may have more than one
programmable controller
— examples include PCM, BCM, IPC. Select the
appropriate controller for the vehicle being serviced.
After selecting the controller to be programmed, identify the type of programming to
be performed:
• Normal is used for updating an existing calibration or programming a new
controller.
• For newer vehicles that do not have VINs in the database, VCI (Vehicle
Configuration Index) is used for updating an existing controller or programming
a new controller. For these vehicles, you will need to contact ACDelco
Aftermarket Support at 1-888-212-8959 for assistance.
• Reconfigure is used to reconfigure a vehicle, such as a truck, for changes in tire
size & axle ratios.
2.9
After making selections, select Next.
IMPORTANT:
If bulletins are listed together with the calibration files, refer to these
service bulletins before performing service programming
IMPORTANT:
Select Cancel if you receive a message stating that the calibration
selected is already the current calibration in the control module, and
reprogramming with the same software calibrations is not allowed.
2.10 A Calibration Selection screen will appear showing the calibration file history for the
vehicle or controller being serviced. The screen displays a description for each
calibration file. Select the appropriate file based on these descriptions.
Then select Next.
2.11
After making the necessary selections, a Summary screen will appear allowing you
to confirm your selection. Select Next to continue.
Summary of Contents for Tech2
Page 1: ...General Motors Tech2 User Guide 1 GM Tech2 User Guide ...
Page 20: ...General Motors Tech2 User Guide 20 Connection of the power jack to the DLC cable ...
Page 22: ...General Motors Tech2 User Guide 22 ...
Page 24: ...General Motors Tech2 User Guide 24 PCMCIA card keying ...
Page 26: ...General Motors Tech2 User Guide 26 VCI module removal ...
Page 32: ...General Motors Tech2 User Guide 32 Attaching the Tech2 to non OBD II equipped vehicles ...
Page 40: ...General Motors Tech2 User Guide 40 RS 232 cable connections ...
Page 46: ...General Motors Tech2 User Guide 46 Tech2 startup screen ...
Page 47: ...General Motors Tech2 User Guide 47 Tools Options selected on Main Menu ...
Page 52: ...General Motors Tech2 User Guide 52 Test Status ...
Page 53: ...General Motors Tech2 User Guide 53 Test Pass ...
Page 64: ...General Motors Tech2 User Guide 64 Selectable VCI test selected on Tech2 Self Test main menu ...
Page 65: ...General Motors Tech2 User Guide 65 First selectable VCI Self Test screen ...
Page 78: ...General Motors Tech2 User Guide 78 CANdi Diagnostics selected on Tool Options menu ...
Page 86: ...General Motors Tech2 User Guide 86 System Selection Menu ...
Page 97: ...General Motors Tech2 User Guide 97 Tool Controls Menu ...
Page 98: ...General Motors Tech2 User Guide 98 Hardware Menu ...
Page 101: ...General Motors Tech2 User Guide 101 Accept soft key on data screen ...
Page 103: ...General Motors Tech2 User Guide 103 Live Plot Screen with selectable items ...
Page 104: ...General Motors Tech2 User Guide 104 Min Max Adjustment screen ...
Page 106: ...General Motors Tech2 User Guide 106 Live Plot Resume soft key ...
Page 107: ...General Motors Tech2 User Guide 107 Live Plot Data List soft key ...
Page 136: ...General Motors Tech2 User Guide 136 Programming Failed Screen ...
Page 141: ...General Motors Tech2 User Guide 141 Controller Area Network diagnostic interface CANdi module ...
