• Programmed 2006 Trailblazer PCM showing the main connectors and part number label for GM 4.2L engines.
  • Programmed 2006 Chevy TrailBlazer PCM Engine Computer module with part number 12593531 shown on a white background.
  • Programmed 2006 Trailblazer PCM 12591648 module with connectors visible, ready for installation.
  • Front view of the programmed 2006 Trailblazer PCM 12591647 engine computer module with connectors visible.
  • Programmed 2006 Chevrolet Trailblazer PCM Engine Computer Module 12589585, front view showing connectors.
  • Front view of the 2006 Trailblazer PCM 12589311 Engine Control Module with its three main connectors visible.
  • Programmed 2006 Trailblazer PCM, part number 12588650, ready for installation.
  • Programmed 2006 Isuzu I-280 PCM showing the main electrical connectors and mounting points.
  • Programmed 2006 Isuzu I-280 PCM, front view showing connectors.
  • A pre-programmed 2007-2009 Sierra 1500 PCM, part number 12597125, ready for installation.
  • Pre-programmed 2007-2009 Sierra 1500 PCM, part number 12597125, ready for installation in a GM truck or car.
  • A pre-programmed 2007-2009 Sierra 1500 PCM, part number 12635902, ready for installation.
  • Pre-programmed 2007-2009 Sierra 1500 PCM, part number 12597125, shown on a clean background ready for installation.
  • Programmed 2007-2009 Sierra 1500 PCM with service number 12597125 shown on a white background.
  • Programmed 2007-2009 Sierra 1500 PCM Engine Computer module, part number 12612397.
  • Pre-programmed 2007-2009 Sierra 1500 ECM, part number 12611549, showing the main connectors.
  • Pre-programmed 12597125 PCM for a 2007-2009 GMC Sierra 1500, shown on a clean white background.
  • Front view of a programmed 2008-2009 Savana 1500 PCM, part number 12597125, showing the main connectors.
  • Pre-programmed 2008-2009 Savana 1500 PCM, part number 12639669, shown with its three main electrical connectors.
  • Pre-programmed 2008-2009 Savana 1500 ECM, part number 12597125, showing the main electrical connectors against a white background.

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