• Programmed 2017 GMC Yukon ECM Engine Control Module 12678815, showing the main connectors and part label.
  • 2017 GMC Yukon XL 1500 ECM Engine Control Module, part number 12678815, shown on a clean white background.
  • Engine Control Module ECM 12678815 for a 2017 Chevrolet Suburban 1500.
  • Programmed 2017 Tahoe Engine Computer ECM 12678815 on a clean background.
  • Programmed 2016-2018 Sierra 1500 ECM Engine Control Module 12678815, front view showing connectors.
  • Programmed 2017 ATS Engine Module ECM, part number 12678815, ready for installation in a Cadillac or GM vehicle.
  • 2017 Cadillac Escalade ESV ECM Engine Control Module part number 12678815 with its three main electrical connectors visible.
  • Front view of the 2017 Escalade ECM Engine Control Module 12678815, showing the main electrical connector ports.
  • Programmed 2017 Corvette ECM Engine Control Module 12678815, front view showing connectors.
  • Programmed 2017 Cadillac CTS Engine Control Module ECM 12678815, front view showing connectors.
  • Programmed 2017-2018 Sierra Denali 1500 ECM Engine Control Module 12678815, front view.
  • 2017-2018 Sierra Denali 1500 ECM Engine Control Module 12674472, front view showing connectors.
  • Programmed 2016-2018 Silverado 1500 ECM Engine Control Module 12674052, front view showing connectors.
  • Programmed 2018 Yukon ECM Engine Computer Module, part number 12704475, ready for installation.
  • Front view of the 2018 Yukon XL ECM Engine Control Module, part number 12704475, showing the main electrical connector ports.
  • Programmed 2018 Cadillac XTS ECM Engine Control Module 12704475, front view showing connectors.
  • 2018 Suburban 1500 ECM Engine Control Module, part number 12704475, front view.
  • 2018 Tahoe ECM Engine Control Module, part number 12704475, shown on a white background.
  • Front view of the 2018 Savana 2500 ECM Engine Control Module 12704475, showing the main electrical connector ports.
  • Front view of the 2018 Savana 3500 Van ECM Engine Control Module, part number 12704475.

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