Get Your GM Vehicle Back on the Road, Fast.
Is a faulty engine computer causing erratic performance, a persistent Check Engine Light, or a no-start condition? Don’t let a complex electronic issue keep your truck, van, or SUV sidelined. This Engine Control Module (ECM) is the definitive, hassle-free solution to restore your vehicle’s performance and reliability. It arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN), loaded with the latest software updates directly from GM. This eliminates the need for expensive dealership programming, saving you time and money.
Common Symptoms & Your Solution
A failing ECM can manifest in numerous frustrating ways. If you’re experiencing issues like poor fuel economy, engine misfires, stalling, transmission shifting problems, or diagnostic trouble codes (DTCs) such as P0601, P0603, or P0606, your engine’s brain may be the culprit. This professionally programmed programmed 12625455 ECM is engineered to resolve these issues by restoring the precise communication and control required for your engine and transmission to operate in perfect harmony.
- โ๏ธ Plug & Play Installation: Because we program the module to your VIN before shipping, installation is straightforward. In most cases, no additional programming or setup is required.
- โ๏ธ Peak Performance & Efficiency: We flash each unit with the newest GM software updates, ensuring your engine operates with optimal fuel efficiency, emissions control, and power delivery.
- โ๏ธ Guaranteed Compatibility: By matching the software to your unique VIN, we ensure this module works seamlessly with your vehicle’s specific options and systems.
- โ๏ธ Cost-Effective Repair: Avoid the high costs and scheduling delays associated with dealership-level programming and repair. This is a direct, affordable path to getting your vehicle fixed correctly.
- โ๏ธ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of VIN-Specific Programming
Think of your vehicle’s ECM as its central nervous system. A generic, non-programmed module is like a brain with amnesiaโit doesn’t know the specific needs of your engine, transmission, or emissions systems. Our VIN-specific programming process essentially restores the vehicle’s factory ‘DNA’ to the module. This ensures that every component, from the fuel injectors to the cooling fans, operates exactly as the manufacturer intended, providing you with the dependable performance you expect from your vehicle. This is why a properly programmed 12625455 ECM is critical for a lasting repair.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. You can typically add this in the notes section during checkout or reply to your order confirmation email. We cannot ship your part until we receive the VIN.
Is any additional programming required after I install it?
In over 99% of cases, no further action is needed. This module is designed to be a plug-and-play solution. However, some vehicles may require a security or crankshaft position sensor relearn procedure, which can be performed with a capable scan tool.
How can I be sure this part number fits my vehicle?
This programmed 12625455 ECM is a direct replacement for original part numbers 12625455 and 12629009. Please check the detailed fitment list on this page or match one of these numbers to the one on your current module to confirm compatibility.
What are the most common signs of a failing ECM?
The most frequent symptoms include a constant Check Engine Light, engine stalling or misfiring, poor performance, decreased fuel economy, and a complete failure to start. You may also have communication-related error codes stored in the system.
Where is the ECM located on my vehicle?
Location varies by model. On many GM trucks and SUVs (like the Silverado, Sierra, and Tahoe), it’s found in the engine compartment, often on the driver’s side near the battery or air filter box. On Express and Savana vans, it is typically located in the LH rear of the engine compartment.