• 2004 GMC Sierra Engine Computer 12586242 Programmed To Your VIN ECM PCM ECU
  • Programmed 2004 Avalanche 1500 PCM, part number 12586242, ready for installation.
  • Programmed 2004 Avalanche 1500 PCM, part number 12586242, ready for installation.
  • A VIN-programmed 2004 Avalanche 1500 PCM, part number 12586242, ready for installation.
  • VIN-programmed 2004 Avalanche 1500 PCM, part number 12586242, ready for installation.
  • Pre-programmed 2004 Avalanche 1500 PCM, part number 12586242, showing the main circuit board and connectors.
  • A programmed 2004 Trailblazer EXT PCM, part number 12586242, ready for installation.
  • Pre-programmed 2004 Trailblazer Engine Computer (PCM), part number 12586242, showing the main connectors and casing.
  • A VIN-programmed 2004 TrailBlazer EXT PCM, part number 12586242, shown on a clean background ready for installation.
  • Programmed 2004 Trailblazer EXT PCM 12586242 installed in the engine bay next to the air box.
  • A VIN-programmed 2004 Trailblazer EXT PCM, part number 12586242, ready for installation.
  • Programmed 2004 Trailblazer EXT PCM, part number 12586242, ready for installation in a GM vehicle.
  • A technician holding a pre-programmed 2004 TrailBlazer EXT PCM, part number 12586242, ready for installation.
  • A close-up view of the 2004 Trailblazer EXT PCM, part number 12586242, showing the main electrical connectors.
  • Chevrolet 2004 Trailblazer Ext Engine Control Module YFKH Programmed To Your VIN
  • A 2004 Trailblazer EXT PCM with part number 12586242 shown on a clean white background, ready for VIN programming.
  • Pre-programmed 2004 TrailBlazer EXT PCM, part number 12586242, ready for installation.
  • Chevrolet 2004 Trailblazer Ext Engine Control Module 89017738 Programmed To Your VIN
  • Pre-programmed 2004 Trailblazer EXT PCM, part number 12586242, ready for installation to fix engine issues.
  • A pre-programmed 12586242 PCM for a 2004 Escalade ESV, showing the three main electrical connectors.

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