Restore Peak Performance to Your GM Vehicle
Is your Chevrolet Sonic, Cruze, or Trax suffering from frustrating and unpredictable engine problems? A flashing check engine light, poor fuel economy, stalling, or a no-start condition can often be traced back to a failing Engine Control Module (ECM). As the central computer of your vehicle, a faulty ECM can disrupt everything from fuel delivery and ignition timing to transmission shifting. This replacement Engine Control Module, part number 12692200, is the definitive solution to restore your vehicle’s reliability and performance.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and expensive dealership visits out of the equation by programming the module specifically for your vehicle using your VIN. This ensures that it arrives with the latest GM factory software updates, making it a true plug-and-play component. Simply provide your VIN after purchase, and our technicians will handle the complex programming, so you can get back on the road with confidence.
From the Diagnostic Bay
We had a 2014 Chevy Sonic come into the shop with a persistent P0300 random misfire code. The owner had already replaced the spark plugs, ignition coil pack, and even the fuel injectors, but the check engine light kept coming back on, and the car ran rough at idle. After hours of chasing wires and checking sensors, we hooked up our advanced scanner and monitored the live data from the ECM. We noticed the fuel trim and ignition advance commands were erratic and inconsistent. On a hunch, we connected a known-good ECM, and the engine immediately smoothed out. The original ECM had internal logic failures that weren’t setting a specific computer fault code but were causing chaos with the engine’s operation. This is a classic case where the component itself is the root cause, and simply replacing it with a pre-programmed unit like this one saved the customer from further diagnostic headaches and expenses.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) that won’t clear
- ✔ Engine misfires, stumbling, or hesitation during acceleration
- ✔ Unexplained drop in fuel economy
- ✔ Difficulty starting the engine or a complete no-start condition
- ✔ Rough or unstable idling
- ✔ Automatic transmission shifting issues
- ✔ Loss of power and poor overall performance
- ✔ Communication errors with diagnostic scan tools
Why Choose Our Programmed 2012-2016 Sonic ECM?
Choosing the right replacement part is critical for a lasting repair. Our modules are meticulously inspected and prepared to meet or exceed original equipment standards. The key benefit is our professional VIN-programming service. Modern vehicles have complex security and operating systems that require the ECM to be perfectly matched to the car’s specific configuration. A generic, non-programmed module from a salvage yard will not work and will leave your vehicle immobilized. We flash this module with the newest stable software release from GM, which can often correct underlying drivability issues that were present even with the old module. This ensures seamless integration and optimal engine function from the moment you install it.
This module is a direct replacement for a wide range of GM vehicles beyond the Chevrolet Sonic, including the Cruze, Volt, Trax, Encore, and even some Silverado and Express van models. Please verify your original part number against our cross-reference list (including 12668866, 12643636, and 12670335) and consult the detailed fitment chart to confirm compatibility with your exact make, model, and year.
Installation is straightforward for an experienced DIYer or any professional mechanic. Once installed, you may need to perform a simple security relearn procedure, which pairs the new ECM to your vehicle’s anti-theft system. This procedure typically takes 10-30 minutes and does not require any special tools. Instructions are widely available online or in service manuals. By purchasing this pre-programmed 2012-2016 Sonic ECM, you are getting a reliable, cost-effective, and convenient solution to a complex automotive problem.
Frequently Asked Questions
Do I need to program this ECM?
No. We handle all the programming for you before shipping. Simply provide us with your vehicle’s 17-digit VIN after you place your order, and the module will arrive ready to install.
Where can I find my VIN?
Your VIN can be found on a metal plate on the driver’s side dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this part fix my car’s problem for sure?
This module will correct any issues directly caused by a faulty ECM. However, it’s crucial that your vehicle has been properly diagnosed. This part will not fix problems related to other faulty sensors, wiring, or mechanical components.
Is any special procedure needed after installation?
In most cases, you will need to perform a security relearn procedure (also known as a key relearn). This process is simple, requires no special tools, and typically involves a sequence of turning the key in the ignition. Instructions are readily available online for your specific model.
Does this ECM fit vehicles other than the Chevy Sonic?
Yes, this is a widely used ECM in the GM family. It fits many 1.4L and other engines in vehicles like the Chevy Cruze, Trax, Volt, Buick Encore, and various GMC/Chevy trucks and vans. Please check the detailed fitment list on this page to confirm compatibility.