Restore Peak Performance and Reliability to Your Vehicle
Is your Chevrolet Sonic, Cruze, or other GM vehicle acting erratically? Experiencing frustrating issues like a persistent check engine light, poor fuel economy, stalling, or a complete no-start condition? The problem often lies with a failing Engine Control Module (ECM), the central computer that manages your engine’s most critical functions. When it falters, the entire vehicle suffers. This isn’t just an inconvenience; it can be a serious safety concern. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can mimic a dozen other problems, leading to expensive and unnecessary repairs.
This is your direct-fit, reliable solution. We offer a genuine GM Engine Control Module, part number 22819494 (and its equivalents), that arrives at your door fully programmed to your specific vehicle. Forget the expensive dealership visit and the hassle of coordinating with a shop for programming. Simply provide us with your Vehicle Identification Number (VIN) at checkout, and our experts will flash the module with the very latest, most stable software from General Motors. This ensures optimal performance, fuel efficiency, and emissions compliance, essentially giving your vehicle’s brain a fresh start. This is the definitive fix for a wide range of drivability issues plaguing many modern GM vehicles.
From the Diagnostic Bay: The Intermittent Stall Case
I remember a 2014 Chevy Sonic that came into my shop. The owner was at her wit’s end. The car would stall randomly at red lights, but never consistently enough to diagnose easily. Two other shops had already replaced the fuel pump and cleaned the throttle body, but the problem persisted. After hooking up my scan tool and monitoring live data, I noticed the short-term fuel trim values would suddenly go haywire just before a stall. There were no specific ‘bad ECM’ codes like P0601, just a history of communication loss codes (U-codes). This pointed directly to an internal processing failure in the ECM. We installed a pre-programmed 2012-2016 Sonic Engine Module just like this one, and the problem was solved instantly. The customer was thrilled to have her reliable car back without any more guesswork.
Is Your Vehicle Showing These Signs of ECM Failure?
A failing ECM can cause a variety of symptoms that are often misdiagnosed. If you’re experiencing any of the following, a faulty module could be the root cause:
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or other internal processor faults.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling, especially when warm.
- ✔ Noticeable decrease in fuel economy.
- ✔ The transmission shifts harshly or erratically.
- ✔ Communication errors with scan tools (U-codes).
- ✔ Misfires on one or more cylinders despite new plugs and coils.
A Straightforward Guide to Your ECM Installation
Installing your new, programmed 2012-2016 Sonic Engine Module is a manageable job for a confident DIYer or any professional technician. While specific locations vary by model (e.g., engine compartment vs. rear of vehicle), the general process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes to allow all system capacitors to discharge.
- Locate the ECM: Find the existing Engine Control Module on your vehicle. On a Chevy Sonic or Cruze, it’s typically mounted on or near the engine. On vans or trucks, it might be on the fender well.
- Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harness connectors and pull them straight out from the module. Never force them. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware, as you will reuse it for the new module.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harness connectors back into the new module until they click and lock into place. Reconnect the negative battery terminal.
- Final Steps: In some cases, a security relearn or crank position sensor relearn procedure may be required. This can often be done without a scan tool (e.g., by cycling the key) or with a basic scan tool function. Your vehicle is now ready to start.
Verified Vehicle Compatibility List
This module, part number 22819494, is a direct replacement for several original part numbers, including 12668866, 12668994, 12643636, and more. It is guaranteed to fit and function correctly on the following GM models and years. Please match your vehicle and options carefully.
- Buick Encore: 2013-2016 (1.4L)
- Cadillac ELR: 2014-2016
- Chevrolet Cruze: 2012-2016 (Gasoline, including 1.4L and Limited models)
- Chevrolet Express 2500/3500 Van: 2016 (4.8L, 6.0L)
- Chevrolet Silverado 2500/3500 Pickup: 2012-2016 (6.0L)
- Chevrolet Sonic: 2012-2016 (Including 1.4L models)
- Chevrolet Spark: 2014-2015 (Gasoline)
- Chevrolet Suburban 3500: 2016
- Chevrolet Trax: 2013-2016
- Chevrolet Volt: 2011-2015
- GMC Savana 2500/3500 Van: 2016 (4.8L, 6.0L)
- GMC Sierra 2500/3500 Pickup: 2012-2016 (6.0L, including Denali)
By purchasing this pre-programmed 2012-2016 Sonic Engine Module, you are choosing a cost-effective and reliable path to getting your vehicle back on the road safely and quickly.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential. It allows us to access the correct GM software file for your car’s specific make, model, year, and options. This ensures the ECM is programmed perfectly for your vehicle, guaranteeing proper function of the engine, transmission, and security systems right out of the box.
Is this a simple plug-and-play installation?
Yes, for the most part. Because we program the module to your VIN, it eliminates the need for expensive dealer-level programming tools. After physical installation, some vehicles may require a simple security or crankshaft position sensor relearn procedure, which can often be done with basic tools or key cycles.
Will this fix my check engine light?
If the check engine light is caused by an internal ECM failure (like codes P0601-P0606) or a software-related issue that the latest GM update addresses, then yes, this module will resolve it. However, it will not fix problems related to other faulty sensors or mechanical parts on the vehicle.
What if I order the wrong part?
We strongly encourage you to verify the part number on your existing module and use our detailed fitment list. Providing your VIN for programming is our final check to ensure compatibility. If you are unsure, please contact us before ordering so our experts can help you confirm the correct part for your vehicle.
Does this part fit vehicles other than the Chevy Sonic?
Absolutely. This specific ECM is used across a wide range of GM vehicles, including the Chevy Cruze, Trax, Volt, Silverado, Express van, and Buick Encore, among others. Please refer to our comprehensive ‘Verified Vehicle Compatibility List’ above to confirm it fits your specific model and year.