Is Your GM Vehicle Running Rough, Stalling, or Refusing to Start?
A failing Engine Control Module (ECM) can bring your entire vehicle to a halt, causing immense frustration and diagnostic headaches. If you’re experiencing erratic engine behavior, communication error codes, or a complete no-start situation, the brain of your engine management system is likely the culprit. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s performance and reliability. You need a solution that is precise, dependable, and tailored specifically to your vehicle—and you need it now.
Common Symptoms & Your Solution
A faulty ECM can manifest in numerous ways, often mimicking other sensor or component failures. Look out for issues like poor fuel economy, engine misfires, check engine lights with communication codes (like U-codes), or the engine cranking but never starting. The solution is this genuine GM engine control module, a direct-fit replacement for part number 12674472 and other interchangeable numbers. What makes this the definitive fix is our professional programming service. We flash the module with the latest factory software using your vehicle’s unique VIN, ensuring it communicates perfectly with your truck, SUV, or car right out of the box. This is the professional-grade solution that gets the job done right the first time.
Features & Benefits
- ✔ VIN-Specific Programming Included: We flash the module with your vehicle’s exact VIN, ensuring seamless integration and correct operation of all engine and vehicle systems.
- ✔ Loaded with Latest GM Software: Your ECM arrives with the most current calibrations from General Motors, improving performance and addressing potential factory bugs.
- ✔ Direct-Fit Replacement: Engineered to replace original part numbers like 12692068, 12704476, and 12686382, guaranteeing a perfect physical fit and connection.
- ✔ Restores Peak Performance: A correctly functioning and programmed 12674472 ECM is essential for restoring proper fuel delivery, ignition timing, and emissions control.
- ✔ Solves Complex Electrical Issues: Puts an end to frustrating diagnostic chases by replacing the core component responsible for engine management.
- ✔ This unit is backed by our one-year replacement warranty.
From the Technician’s Bench: The Importance of Correct Programming
As a veteran technician, I’ve seen countless vehicle owners and even shops waste time and money on unprogrammed or incorrectly programmed modules. Buying a used ECM from a junkyard or an un-flashed unit online almost never works. Modern GM vehicles use a sophisticated CAN bus system where every module is coded to the original vehicle’s VIN and options. Our service eliminates that entire headache. By providing a professionally programmed 12674472 ECM, we’re not just selling you a part; we’re providing a near plug-and-play solution that saves you a trip to the dealership and the high costs associated with their programming services. Please note that while the core programming is done, a final security or ‘theft relearn’ procedure may be required on your end, which is a standard step for this type of repair.
Frequently Asked Questions
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is critical for us to load the correct software and calibrations for your specific vehicle.
Will this ECM be ready to install when it arrives?
Yes, the module arrives programmed for your vehicle’s engine and emissions systems. However, as with any ECM replacement on these GM platforms, you or your mechanic will need to perform the vehicle’s security relearn procedure to sync the new ECM with your keys and anti-theft system. Additional relearns, like for the crankshaft position sensor, may also be required.
Is this a difficult part to replace?
The physical replacement is typically straightforward, as the ECM is usually located in the engine compartment. The critical part of the process is the electronic relearn procedures. We recommend installation by a professional technician who has access to GM-compatible diagnostic tools if you are not comfortable with these steps.
How do I know if this part number will fit my vehicle?
This programmed 12674472 ECM fits a wide range of GM vehicles listed in the compatibility chart, including many Silverado, Sierra, Tahoe, Yukon, and Escalade models. Please check the fitment list on this page or contact us with your VIN if you are unsure.
Will this fix my check engine light?
If the check engine light and associated drivability problems are caused by a failing ECM, this part is the correct solution. It’s crucial to have the vehicle properly diagnosed to confirm the ECM is the point of failure before ordering.