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GMC Tech 2 - Page 101

GMC Tech 2
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SECTION VIIC SERVICE PROGRAMMING SYSTEM
2005 Tech 2 User’s Guide VII - 51
4. At the Preparing for Communication “Determine Vehicle” screen (Figure VIIC-30), complete all terminal-
directed data until Next is highlighted (vehicle data will vary). Select Next.
IMPORTANT
In order to reduce the potential for signal loss, the RS-232 cable should not be more than 25 feet long.
5. Follow the instructions on the Preparing for Communication screen (Figure VIIC-31), then select Next.
6. Verify the VIN at the Validate Vehicle Identification Number (VIN) screen (Figure VIIC-4). Select Next.
If the option screen appears: Enter all information, then select Next.
IMPORTANT
If the vehicle identification number (VIN) does not appear correctly, the correct VIN must be entered.
Figure VIIC-30
Preparing for Communication “Determine Vehicle” screen
Figure VIIC-31
Preparing for Communication instruction screen
Pass-Thru Programming continued on next page...
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