• 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.
  • 2002 Trailblazer PCM Engine Computer Module YBRY, front view showing the main electrical connectors.
  • 2002 Trailblazer EXT PCM Powertrain Control Module with connectors visible.
  • 2002 Envoy XL PCM Powertrain Control Module, part number YBRY, showing the main casing and two electrical connector ports.
  • 2002 GMC Envoy PCM Engine Computer Module YBRY, front view showing the three main electrical connector ports.
  • A 2002 Bravada PCM, part number YBRY, showing its three main electrical connector ports. This module is pre-programmed to your VIN for a simple plug-and-play installation.
  • Programmed 2002 Trailblazer PCM Powertrain Control Module with service tag YBLR, ready for installation.
  • 2002 Trailblazer EXT PCM Powertrain Control Module, part number YBLR, ready for installation.
  • Programmed 2002 Envoy XL PCM, compatible with Trailblazer and Bravada, part number YBLR.
  • Programmed 2002 Envoy PCM, compatible with Trailblazer and Bravada models, part number YBLR.
  • 2002 Bravada PCM Engine Computer with three main electrical connectors visible on a white background.
  • Programmed 2002 Trailblazer PCM Engine Computer Module with connectors visible.

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