Restore Your Vehicle’s Performance and Reliability
Are you battling a persistent check engine light, experiencing rough idling, poor fuel economy, or even a no-start condition? These frustrating issues often point to a failing Engine Control Module (ECM), the brain of your vehicle. Don’t let a faulty computer keep you off the road. This direct-fit engine computer, compatible with part numbers 12629009 and 12625455, is the definitive solution to get your GM car, truck, or SUV running like new again.
Common Symptoms & Your Direct-Fit Solution
A failing ECM can cause a wide range of confusing problems. If you’re noticing any of the following, it’s a strong sign that your engine computer needs replacement:
- Illuminated Check Engine Light (CEL) with various trouble codes
- Vehicle won’t start or is very hard to start
- Stalling, sputtering, or hesitation during acceleration
- Noticeable decrease in fuel efficiency
- Transmission shifting problems or harsh shifts
- Communication errors with diagnostic scan tools
This fully tested unit is the answer. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific Vehicle Identification Number (VIN). This ensures that all vehicle-specific parameters, including the anti-theft system, are correctly configured, making for a smooth and successful installation. When you order this programmed 12629009 ECM, you’re not just getting a part; you’re getting a complete, ready-to-install solution.
Features & Benefits
- โ VIN-Programmed for Your Vehicle: Arrives ready for installation with the latest GM software updates, ensuring perfect compatibility and communication with your vehicle’s systems. No expensive trip to the dealership for programming is required.
- โ Restores Peak Performance: Corrects engine performance issues, restores proper fuel delivery and ignition timing, and ensures smooth transmission shifting for a like-new driving experience.
- โ Direct OEM Fitment: Designed to be a direct replacement for part numbers 12629009 and 12625455, guaranteeing a perfect fit and easy installation in the factory location.
- โ Cost-Effective Repair: A smart, affordable alternative to the high costs associated with dealership parts and labor. Get your vehicle fixed without breaking the bank.
- โ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
As a technician, I’ve seen countless vehicle owners buy a used ECM online only to find it doesn’t work. Why? Modern GM vehicles use a sophisticated anti-theft system (VATS/Passlock) that links the ECM directly to your specific key and vehicle. A module from another vehicle simply won’t start the engine. Our VIN programming service handles this complex security handshake for you. We ensure the programmed 12629009 ECM you receive is a true plug-and-drive part, saving you the time, cost, and headache of a dealership visit.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) is essential for us to load the correct software and security information into the ECM. This step ensures the module communicates perfectly with your vehicle’s engine, transmission, and anti-theft system, making the installation process as simple as possible.
Is this a simple plug-and-play installation?
Yes, for most vehicles this is a direct plug-and-play part. Once we program it to your VIN, you simply disconnect the battery, swap the old module with the new one, and reconnect the battery. In some rare cases, a Case Relearn or other minor security procedure may be needed, which can be performed by many local shops.
Will this fix my specific problem?
This programmed 12629009 ECM is the correct solution for a confirmed faulty engine computer. While it resolves the vast majority of electronic engine-related issues, we always recommend a proper diagnosis by a qualified mechanic to ensure the ECM is the root cause of your problem before ordering.
How do I find my original part number?
Your original part number is printed on a sticker on the ECM itself. You can cross-reference it with the compatible numbers listed here (12629009, 12625455). However, as long as your vehicle is listed in our compatibility chart, this module will be the correct fit once programmed to your VIN.
What information do you need from me after I order?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship your order until we receive this information, as it is required for the programming process.