Candi Module - GMC Tech2 User Manual

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If you select VCI for your programming type, the VCI number entry box appears.
Enter a valid VCI number for this vehicle (obtained from Customer Support) and
select OK.
•
If you select Reconfigure for your programming type, the Reconfigure box appears.
Select the correct tire size and axle ratio, then select OK. The VCI number entry
box appears. Enter a valid VCI number for this vehicle and select OK.
8. At the Calibration Selection screen:
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Select the appropriate calibration(s).
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Make sure all folder tabs have a green check mark.
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Select Next.
9. At the Summary screen:
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Verify current calibration(s) with selected calibration(s).
•
Select Next.
IMPORTANT: Some vehicles will require that Idle Learn, TP Learn, Theft Deterrent
Relearn, or Crankshaft Variation Learn procedures be performed after programming.
Consult the appropriate service information for these procedures.
•
If calibrations are the same, the NAODRUI Control box will appear. Select OK.
•
On model year 1996 and newer controllers, a Crankshaft Position notice may
appear under "Controller Specific Instructions" on the Program Controller screen.
Select OK.
•
The Transfer Data screen appears as reprogramming begins, finishing when the
percentage bar reaches 100 per cent. This may take up to 30 minutes.
The Program Controller "Programming Complete" screen appears. Select Close.
10.
The program will return to the TIS2Web main screen. Be sure to verify successful
reprogramming. Refer to Verifying Reprogramming.
11. Turn off the Tech2.
12. Disconnect the Tech2 from the vehicle.

CANdi Module

This section applies only to GM vehicles equipped with the new GM LAN/CAN (General
Motors Local Area Network/Controller Area Network). Please disregard this section if you
do not currently have any vehicles supported by this application.
GM vehicles use class 2, low-speed (10.4 K baud rate) systems. A limited number of
vehicle platforms (e.g. Saturn Ion, Cadillac XLR) are equipped with the new GM LAN/CAN
system. This type of application has a single-wire CAN bus for body controls, a medium-
speed CAN bus for information and entertainment, and a high-speed CAN bus for
powertrain (OBD II compliant modules). A new diagnostic interface—the Controller Area
Network diagnostic interface (CANdi) has been developed to address these needs. The
CANdi module serves as an enhancement to the Tech2 and completes the interface
necessary to communicate with future on-board computer systems.
General Motors Tech2 User Guide
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