• Programmed 2004 Suburban 2500 PCM, part number 12586242, showing the main connectors for installation.
  • Programmed 2004 Suburban 2500 PCM, part number 12586242, ready for installation.
  • A 2004 GM PCM with part number 12586242, showing the connectors for installation in a Silverado, Suburban, or Tahoe.
  • A pre-programmed 2004 Suburban 2500 PCM, part number 12586242, ready for installation.
  • A close-up of the 2004 GM PCM with part number 12586242 visible, showing the main electrical connectors.
  • A programmed 2004 Tahoe PCM 12586242 ready for installation in a compatible GM truck or SUV.
  • Pre-programmed 2004 Tahoe PCM, part number 12586242, ready for installation in a GM truck or SUV.
  • Programmed 2004 Tahoe PCM ECM module, part number 12586242, ready for installation.
  • 2004 Tahoe ECM Engine Computer Module 12586242 for GM trucks and SUVs.
  • Programmed 2004 Tahoe PCM 12586242, showing the three main connector ports for GM trucks and SUVs.
  • Programmed 2004 Tahoe PCM 12586242, showing the main connectors and identification label.
  • Pre-programmed 2004 Tahoe PCM with part number 12586242, showing the main electrical connectors for installation.
  • 2004 Tahoe PCM Engine Computer module 12586242, showing the main connectors and identification label.
  • A pre-programmed 2004 Tahoe PCM, part number 12586242, ready for installation.
  • 2004 Chevrolet Tahoe PCM Engine Computer 12586242, front view showing the three main electrical connector ports.
  • Pre-programmed 2004 Tahoe ECM, part number 12586242, ready for installation to fix engine performance issues.
  • A VIN-programmed 2004 Tahoe PCM, part number 12586242, ready for installation.
  • A technician holding a pre-programmed 2004 Tahoe PCM Replacement, part number 12586242, ready for installation.
  • A technician holding a pre-programmed 2004 Sierra 1500 PCM, ready for installation in a GM truck.
  • Pre-programmed 2004 Yukon XL PCM, part number 12586242, ready for installation on a workbench.

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