Restore Peak Performance to Your GM Truck or SUV
Is your 2014-2016 GMC Sierra 1500, Chevrolet Silverado, or other compatible GM vehicle suffering from perplexing engine issues? Unexplained check engine lights, rough idling, poor fuel economy, or even a no-start condition can often be traced back to a failing Engine Control Module (ECM). As the central computer of your vehicle’s powertrain, the ECM is responsible for managing everything from fuel injection and ignition timing to transmission shifting. When it fails, the entire vehicle’s performance and reliability are compromised.
This genuine GM Engine Control Module, part number 12676230, is the definitive solution to these problems. We take the guesswork and hassle out of the replacement process. Unlike sourcing a part from a junkyard or a dealership, this module comes professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures that the ECM communicates flawlessly with all other modules in your vehicle, maintaining all original factory functions and specifications. Simply provide us with your VIN upon purchase, and we’ll handle the programming before it ships, making installation as straightforward as possible.
Expert Pro Tip
Before condemning your ECM, always perform a thorough check of the basics. A weak battery, corroded battery terminals, or a poor ground connection (especially the main engine-to-chassis ground) can mimic ECM failure symptoms. Use a multimeter to verify you have a solid 12V+ supply and clean, tight ground connections at the module’s connector. This simple diagnostic step can save you time and money.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine misfires, stumbling, or hesitation during acceleration.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Vehicle cranks but refuses to start.
- ✔ Intermittent stalling for no apparent reason.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
Why Choose Our Programmed 2014-2016 Sierra 1500 ECM?
Getting your truck back on the road shouldn’t be a complicated ordeal. Our process is designed for the DIY mechanic and professional technician alike. By providing a module that is flashed with the latest GM-certified software updates and calibrated specifically to your VIN, we eliminate the need for expensive dealership programming or specialized tools. This is a direct-fit, plug-and-play solution that restores the precise control your engine needs to operate efficiently and reliably. This high-quality component is your best bet for a lasting repair.
This unit is a direct replacement for a wide range of part numbers, ensuring broad compatibility across numerous GM models. Please verify your original part number against our cross-reference list to ensure a perfect match. The included list of compatible vehicles like the Silverado 1500, Corvette, Escalade, and Tahoe demonstrates the versatility and OEM standard of this part. When you install our pre-programmed 2014-2016 Sierra 1500 ECM, you are restoring your vehicle’s brain with the most current and stable software available from the manufacturer.
Guaranteed Compatibility
This module is a direct replacement for the following part numbers: 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, and 12669318. It fits a wide array of GM vehicles from 2014 to 2016, including the Sierra 1500, Silverado 1500, Tahoe, Suburban, Yukon, Escalade, Corvette, Camaro, CTS, ATS, and more. Please check the detailed fitment list to confirm for your specific model and options.
Frequently Asked Questions
Do I need to do any programming after I receive this ECM?
No. We program the module to the VIN you provide before shipping. In most cases, it is a plug-and-play installation. However, some vehicles may require a security relearn procedure (also known as a key relearn or anti-theft relearn), which can typically be done without special tools. Instructions for this simple procedure are widely available online for your specific model.
How do I provide my VIN?
After you complete your purchase, you can send us a message with your 17-digit VIN. We cannot ship the module until we have this information, as the programming is essential for the part to function in your vehicle.
Is this a new or used part?
This is a high-quality, tested, and inspected original equipment part that has been prepared for its next service life. Each unit is verified to be fully functional before being programmed and shipped.
What if my original part number is not on the list?
If your part number is not listed in the description, please contact us with your VIN and original part number. We can verify compatibility and ensure you receive the correct module for your vehicle.
Will this fix my vehicle’s specific problem?
This ECM will correct issues directly caused by a faulty engine computer. While the symptoms listed are common indicators of ECM failure, they can also be caused by other issues. Proper vehicle diagnosis is always recommended before ordering to ensure you are purchasing the correct part for your repair.