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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 854 (Transfer Case - NVG 236/246-NP8) >> Repair Instructions >> Transfer Case Control Module Reprogramming >> Programming Using Scan Tool Pass-Through Connection

Programming Using Scan Tool Pass-Through Connection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the scan tool to vehicle and power it up.
  2. Connect the computer station to the scan tool.
  3. Select "PC Using Scan Tool Connection" from the programming menu on the computer station.
  4. Follow the menu select items for reprogramming and provide information as to what type of device you are programming and whether you are reprogramming or replacing the electronic control unit (ECU).
  5. Select "vehicle" from the selection menu.
  6. Select the module you wish to program.
  7. Select "Normal" for Programming Type.
  8. Select the applicable software calibrations.
  9. Transfer data file to the scan tool.
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