Get Your Vehicle Running Right Again
Is your truck, SUV, or sedan suffering from frustrating and debilitating engine issues? A faulty Engine Control Module (ECM) can bring your daily life to a grinding halt, causing everything from a simple check engine light to a complete no-start condition. This genuine GM Engine Control Module, compatible with part numbers 12629009 and 12625455, is the definitive solution to restore your vehicle’s performance, reliability, and drivability. We take the guesswork and hassle out of the repair by pre-programming the unit specifically to your vehicle’s VIN before it ever leaves our facility.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing ECM is a likely culprit. This module is the correct fix for:
- Persistent Check Engine Light (CEL)
- Engine stalling, sputtering, or misfiring
- Complete no-start condition where the engine cranks but won’t turn over
- Poor fuel economy and reduced engine power
- Transmission shifting problems or harsh shifts
- Communication error codes (U-codes) with scan tools
- Failure to pass emissions testing
By ordering our programmed 12629009 ECM, you’re not just buying a part; you’re getting a plug-and-play solution designed to get you back on the road quickly and affordably.
Features & Benefits
- โ VIN-Specific Programming Included: We flash the module with the latest GM software updates using your vehicle’s unique VIN. This ensures perfect compatibility and function right out of the box.
- โ No Dealership Visit Required: Because the unit is pre-programmed, you can avoid the expensive programming and key relearn fees typically charged by dealerships.
- โ Restored Engine Performance: A new, properly functioning ECM corrects fuel mixture, ignition timing, and transmission commands, bringing back the smooth and efficient performance you expect.
- โ Broad GM Compatibility: This versatile module fits a wide range of popular GM vehicles, from hardworking Sierra and Silverado trucks to family-hauling Tahoes and Escalades, and dependable Malibu and Impala sedans.
- โ This unit is backed by our one-year replacement warranty. This gives you confidence and peace of mind in your purchase.
Expert Insight: The Critical Role of VIN Programming
As a veteran technician, I’ve seen countless vehicle owners try to save a few dollars by installing a used ECM from a salvage yard. Almost every time, it leads to more problems. Without VIN-specific programming, the module won’t recognize your vehicle’s security system (leading to a no-start), transmission, or specific options. Our process of flashing the module to your VIN isn’t just a convenienceโit’s the essential step that makes this a true, reliable repair. This programmed 12629009 ECM ensures all vehicle systems communicate correctly from the moment you turn the key.
Frequently Asked Questions
What do I need to do after I place my order?
After you complete your purchase, you must provide us with your vehicle’s 17-digit VIN. We cannot ship your part until we have this information, as it is required for the programming service. You can typically send it through the platform’s messaging system or in the order notes.
Is this part truly plug-and-play?
Yes. Because we program the ECM to your specific VIN, it is ready for installation upon arrival. In most cases, you will not need to perform any additional programming or security relearn procedures. This makes it an ideal solution for both professional mechanics and DIY installers.
How do I know this will fix my vehicle’s problem?
While this module is the correct fix for the symptoms listed, it’s crucial to have your vehicle properly diagnosed. A faulty ECM can mimic other issues, such as a bad sensor or wiring problem. We recommend a professional diagnosis to confirm the ECM is the point of failure before ordering.
Where can I find my vehicle’s VIN?
Your VIN is located in several places: on a metal tag on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
My original part number is 12625455. Will this work?
Yes. This ECM, part number 12629009, is a fully compatible and often updated replacement for part number 12625455. When you provide your VIN, we ensure the programming is a perfect match for your vehicle’s requirements, regardless of which of these two numbers was originally installed.
Choosing the right programmed 12629009 ECM is the most important step in getting your vehicle back to factory-spec condition. Order today and experience the difference a professionally programmed module makes.