SECTION VIIC SERVICE PROGRAMMING SYSTEM
2005 Tech 2 User’s Guide VII - 50
Performing Pass-Thru Programming
Pass-thru programming allows the scan tool to remain connected to the terminal and to the vehicle
throughout the programming process. The vehicle must be in close proximity to the terminal while using
pass-thru programming (see Figure VIIC-28).
Pass-Thru Programming Procedure
1. Launch TIS.
2. From the TIS main screen (Figure VIIB-2), select the Service Programming System icon.
3. At the Select Diagnostic Tool and Programming Process screen (Figure VIIC-29):
• Select Pass-Thru under “Select Diagnostic Tool.”
• 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.
• Select Next.
IMPORTANT: TIS supports Service Programming with the Tech 2 scan tool only.
Figure VIIC-28
Vehicle to terminal pass-thru connection
Figure VIIC-29
Select Diagnostic Tool and Programming Process screen showing selections appropriate for pass-thru
Pass-Thru Programming continued on next page...
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