• Front view of a 2005 Envoy Engine Control Module ECM 12596771, showing the main electrical connector ports.
  • 2005 Envoy XUV Engine Control Module ECM 12596771, front view showing connectors.
  • Programmed 2005 Envoy XL Engine Control Module ECM 12596771, front view showing connectors.
  • Programmed 2005 Corvette ECM Engine Control Module, part number 12596771, ready for installation.
  • 2005 Buick Rainier Engine Control Module ECM 12596771, front view showing connectors.
  • Front view of the 2005 Isuzu Ascender ECM Engine Control Module 12596771, showing the main electrical connector ports.
  • Front view of the 2005 GTO Engine Control Module ECM, part number 12596771, showing the main electrical connectors.
  • 2005 SAAB 9-7X ECM Engine Control Module 12578554, front view showing the main electrical connectors.
  • Programmed 2005 Trailblazer EXT ECM Engine Control Module 12578554, front view showing connectors.
  • 2005 Envoy Engine Control Module ECM 12578554, front view showing the three main electrical connectors.
  • Programmed 2005 Envoy XUV ECM Engine Control Module 12578554, front view showing connectors.
  • 2005 Envoy Engine Module 12578554, showing the main electrical connectors and identification label.
  • Programmed 2005 Corvette Engine Control Module ECM 12578554, front view showing connectors.
  • Programmed 2005 Rainier Engine Module ECM, part number 12578554, ready for installation.
  • 2005 Isuzu Ascender ECM Engine Control Module, part number 12578554, showing the main housing and electrical connectors.
  • 2005 GTO Engine Control Module ECM, part number 12578554, shown on a white background.
  • 2002 Trailblazer EXT PCM Powertrain Control Module with connectors visible.
  • Programmed 2002 Envoy XL PCM Engine Control Module with connectors visible, ready for installation.
  • Front view of a 2002 Envoy PCM with part number YBZP visible.
  • Programmed 2002 Oldsmobile Bravada PCM Engine Computer, part number YBZP, ready for installation.

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