Get Your GM Truck, Van, or SUV Running Like New Again
Is your vehicle suffering from frustrating, hard-to-diagnose electrical issues? A faulty Engine Control Module (ECM) is often the culprit behind poor performance, stalling, or a complete no-start condition. Don’t let a bad computer keep you off the road. This direct-fit engine computer, compatible with part numbers 12629009 and 12625455, is the reliable, straightforward solution you need to restore your vehicle’s brain and bring its performance back to factory standards.
Common Symptoms & Your Solution
A failing ECM can cause a cascade of problems that can be mistaken for other component failures. If you’re experiencing any of the following, this pre-programmed engine computer is your answer:
- Check Engine Light: Persistent and often accompanied by communication error codes like U0100.
- Engine Stalling: The engine randomly shuts off while driving or at idle.
- No-Start Condition: The engine cranks but refuses to start, even with a good battery and fuel supply.
- Poor Fuel Economy: A sudden, unexplained drop in your vehicle’s MPG.
- Erratic Shifting: The transmission may shift harshly or at the wrong times.
- Specific DTCs: Codes such as P0601, P0606, or P062B pointing directly to an internal module fault.
Instead of paying for expensive dealership diagnostics and programming fees, this GM 12629009 ECM arrives at your door ready for installation. We take care of the complex part so you can focus on the simple fix.
Features & Benefits
- โ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software updates using your vehicle’s specific VIN. This ensures perfect compatibility and function right out of the box.
- โ Plug & Play Installation: Because the programming is done beforehand, you can avoid costly trips to the dealer. In most cases, installation is as simple as disconnecting the battery, swapping the module, and reconnecting.
- โ Restored Performance & Efficiency: With a properly functioning computer running the latest software, you’ll regain the smooth performance, crisp throttle response, and optimal fuel economy you expect from your vehicle.
- โ Cost-Effective Solution: Get a reliable, professionally programmed module for a fraction of the cost of a new unit from a dealership.
- โ Guaranteed Compatibility: This unit is a direct replacement for a wide range of popular 2009-2010 GM models, ensuring a perfect fit and seamless integration.
- โ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Technician’s Insight
One of the biggest hurdles when replacing a modern engine computer is the required programming. Forgetting this step is a common mistake that leaves a vehicle just as dead as it was before the repair. By programming this GM 12629009 ECM to your VIN before we ship, we eliminate the most difficult part of the job. You won’t need specialized scan tools or a tow to the dealer. This service is what turns a potentially complex, multi-day repair into a simple, one-hour job you can do with basic hand tools in your own driveway.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the module to work in your vehicle.
Is this part truly ‘plug and play’?
Yes, for the vast majority of vehicles listed. Because we pre-program it to your VIN, it communicates with your vehicle’s other modules correctly upon installation. In some rare cases, a security or crank relearn procedure may be needed, which can be done with a capable scan tool or by following a specific vehicle procedure.
My original part number is 12625455. Will this work?
Absolutely. Part number 12629009 is a fully compatible and often updated replacement for 12625455. As long as your vehicle’s year, make, and model are on the compatibility list, this module will work perfectly.
Where is this module located on my vehicle?
The location varies slightly by model. On most trucks and SUVs like the Silverado, Sierra, and Tahoe, it’s found in the engine compartment on the driver’s side. On vans like the Savana and Express, it is typically located in the LH rear of the engine compartment.
Do I need to send my old ECM (core) back?
No core charge or return is required for this part. You can keep or responsibly dispose of your old module.