Is your truck or SUV suffering from frustrating electrical issues, a persistent check engine light, or a no-start condition? A failing Engine Control Module (ECM) is often the culprit, leaving you stranded and stressed. This replacement ECM, part number 12629009, is the definitive solution to restore your vehicle’s performance and reliability. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific VIN before it ships, ensuring a seamless and straightforward installation process.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty ECM is the likely cause. This unit is designed to resolve these problems:
- Check Engine Light (CEL) with communication-related codes (U-codes).
- Engine stalling, sputtering, or running rough.
- Complete no-start condition where the engine cranks but won’t fire.
- Poor fuel economy and loss of power.
- Intermittent issues with electronic components like gauges or transmission shifting.
By installing our Programmed 12629009 Engine Control Module, you are not just replacing a part; you are restoring the brain of your vehicle’s engine management system with the latest GM software updates for optimal function.
Features & Benefits
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Plug-and-Play Installation: Because it arrives pre-programmed, installation is simplified. In most cases, a security relearn procedure is all that’s needed to get you back on the road.
- ✔ Updated GM Software: Your ECM will be loaded with the newest factory software, ensuring peak performance, fuel efficiency, and emissions compliance.
- ✔ Broad Compatibility: This module replaces multiple part numbers, including 12625455, and fits a wide range of GM vehicles from work trucks like the Silverado 2500 to family SUVs like the Tahoe and Yukon.
- ✔ Guaranteed Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
As a veteran technician, I’ve seen countless vehicle issues caused by improperly matched control modules. Simply installing a used ECM from another vehicle won’t work due to differing software, security protocols, and vehicle options. Our VIN programming service is not just a convenience—it’s essential. We ensure the module communicates perfectly with your vehicle’s other systems (like the transmission controller and anti-lock brakes), preventing a cascade of error codes and drivability problems. This Programmed 12629009 Engine Control Module is prepared to be the correct, reliable heart of your vehicle’s electronics from the moment you install it.
Fitment Information
This ECM is a direct replacement for part numbers 12629009 and 12625455 and fits a wide variety of 2009-2010 GM models, including the Silverado/Sierra 2500/3500, Suburban, Tahoe, Escalade, Express/Savana vans, and more. Please verify your part number or consult the detailed fitment list to ensure compatibility.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information.
Is this a plug-and-play part?
Yes, this Programmed 12629009 Engine Control Module is designed to be as close to plug-and-play as possible. Once installed, you will likely need to perform a simple security relearn procedure (often called a key-cycle relearn), which can typically be done without special tools. Instructions are widely available online for your specific model.
Do I need to send my old ECM back?
No core charge or return is required for this part. You can keep or responsibly dispose of your old module.
Will this fix my specific problem?
This ECM is a direct solution for a failed module. While it resolves the common symptoms listed above, we always recommend a proper diagnosis by a qualified mechanic to confirm the ECM is the root cause of your issue before ordering.
What if my part number is slightly different?
This unit is a direct replacement for part numbers 12629009 and 12625455. If your original module has one of these numbers, this part will work. If you have a different part number, please contact us to verify compatibility.