Is Your Chevrolet Stalling, Misfiring, or Refusing to Start?
The Engine Control Module (ECM), often called the brain of your vehicle, is the central command center for your engine’s performance. It meticulously manages critical functions like fuel injection, ignition timing, and emissions systems. When the ECM in your Chevrolet Trax, Cruze, Sonic, or other compatible GM vehicle begins to fail, it can trigger a cascade of frustrating and often confusing problems. You might experience a sudden drop in fuel economy, erratic engine behavior, a persistent Check Engine Light, or even a complete no-start condition, leaving you stranded. Don’t let a faulty computer dictate your vehicle’s reliability.
The Direct-Fit Solution: A Pre-Programmed 2013-2014 Trax ECM
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and high dealership costs out of the equation. This genuine GM ECM, compatible with part number 12621466 and others, is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures that the module communicates flawlessly with your vehicle’s existing systems, including the ignition, transmission, and anti-theft security. By flashing the unit with the latest GM-certified software updates, we also ensure your engine operates with optimal efficiency and performance, just as the manufacturer intended.
Common Symptoms of a Failing ECM
- ✔ Check Engine Light: The light is on, and you may have codes that are difficult to diagnose or seem unrelated.
- ✔ Engine Performance Issues: Noticeable loss of power, poor acceleration, rough idling, or engine misfires.
- ✔ Stalling or No-Start: The engine may stall intermittently while driving or fail to start at all, even with a good battery and starter.
- ✔ Poor Fuel Economy: A sudden and unexplained decrease in your vehicle’s gas mileage.
- ✔ Transmission Problems: Harsh or erratic shifting, as the ECM plays a key role in communicating with the Transmission Control Module (TCM).
- ✔ Intermittent Electrical Issues: Seemingly random problems with other electronic components can sometimes be traced back to a failing ECM.
Why Choose a VIN-Programmed Module?
Installing a generic, non-programmed ECM into your vehicle simply will not work. Modern vehicles use sophisticated anti-theft systems that require the ECM to be matched to the specific VIN. Our programming service handles this for you. When you provide your VIN during checkout, our technicians use specialized equipment to load your vehicle’s exact software and security keys onto the module. This makes the installation process as simple as possible. In most cases, it’s a direct swap, though some models may require a simple security relearn procedure that can be done without special tools. This plug-and-play approach saves you a costly trip to the dealership and the expense of their programming services.
This module is a direct replacement for the following part numbers: 12679199, 12642927, 12636386, 12621466, 12630789. It is guaranteed to fit and function in the following vehicles:
- 2011-2012 Chevrolet Cruze (1.8L)
- 2009-2011 Chevrolet Aveo
- 2013 Chevrolet Spark
- 2009-2010 Pontiac Wave
- 2013-2014 Chevrolet Trax (1.8L)
- 2012 Chevrolet Sonic (1.8L)
- 2009-2010 Pontiac G3
Frequently Asked Questions
Do I need to do any programming after I receive this ECM?
No! We program the module to your vehicle’s VIN before shipping. It arrives ready for installation. Some vehicles may require a simple key relearn or security relearn procedure, which can typically be done in your driveway without any special tools. Instructions are available upon request.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is specific to your car.
Is this a new or used part?
This is a high-quality, tested, and inspected used OEM part that has been professionally prepared and programmed with the latest software for your vehicle. It is a reliable and cost-effective alternative to a brand-new dealership part.
Will this fix my car’s problem?
This ECM will correct issues directly caused by a faulty engine computer. While the symptoms listed are common for ECM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the ECM is the root cause of your problem before ordering.
What is your warranty policy?
This part comes with our standard warranty, guaranteeing it will be free from defects upon arrival and function correctly once properly installed. Please see our website’s warranty page for complete details.