Restore Your Vehicle’s Core Performance and Reliability
Is your Chevrolet Cruze, Sonic, or other GM vehicle acting up? Experiencing frustrating issues like random stalling, a persistent Check Engine Light, poor fuel mileage, or erratic shifting? These are classic signs of a failing Engine Control Module (ECM), the computer that serves as your engine’s brain. A faulty ECM can make your vehicle unreliable and unsafe. This isn’t just an inconvenience; it’s a critical component failure that needs a dependable solution.
As a technician with over two decades of diagnostic experience, I’ve seen firsthand how a failing ECM can mimic dozens of other problems, leading to wasted time and money on incorrect repairs. This replacement Engine Control Module, part number 22819494, is the definitive fix. The best part? We eliminate the biggest headache of ECM replacement: programming. Simply provide your vehicle’s VIN during checkout, and our experts will program the module with the latest GM factory software specifically for your car. It arrives at your door ready for a straightforward installation, saving you a costly trip to the dealership.
Case Study: The Ghost in the Machine
I remember a 2014 Chevy Cruze that came into the shop with a baffling problem. The owner complained of intermittent stalling at red lights, but with no consistent Check Engine codes. We checked the fuel pump, sensors, and wiring—everything seemed fine. The car would run perfectly for days, then suddenly die. After exhausting other possibilities, we hooked up a data logger to the ECM. We discovered that the processor was randomly dropping communication for milliseconds at a time—just long enough to shut the engine down without setting a hard fault. Replacing the module with a properly programmed unit like this one solved the issue for good. It’s a reminder that with modern cars, the computer is often the culprit behind the most elusive problems.
Is Your GM Vehicle Showing These ECM Failure Signs?
A failing ECM can cause a wide range of symptoms. If you’re noticing any of the following, it’s a strong indicator that your engine’s computer needs attention. A failing module can also trigger a variety of Diagnostic Trouble Codes (DTCs).
- ✔ Engine stalling or misfiring for no apparent reason
- ✔ Difficulty starting the engine or a complete no-start condition
- ✔ Noticeable decrease in fuel economy
- ✔ Poor acceleration and overall sluggish performance
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Check Engine Light is on with codes like P0601 (Internal Control Module Memory Check Sum Error), P0606 (ECM/PCM Processor Fault), or U0100 (Lost Communication With ECM/PCM)
Your Straightforward ECM Installation Guide
We handle the complex programming so you can perform the installation with basic hand tools. This process is designed to be as simple as possible. Always consult a vehicle-specific repair manual if you are unsure about any step.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the ECM: On most compatible vehicles like the Cruze or Sonic, the ECM is located in the engine bay, often near the battery or firewall. It’s a silver metal box with large electrical connectors.
- Disconnect Connectors: Carefully release the locking tabs on the electrical harnesses and pull them straight out from the ECM. Avoid pulling on the wires themselves.
- Remove the Old Module: Unbolt the mounting hardware that secures the old ECM to its bracket or the vehicle body. Set the old module aside.
- Install the New Module: Mount your new, pre-programmed ECM in the same location and secure it with the original hardware.
- Reconnect Everything: Plug the electrical connectors firmly back into the new ECM until they click into place. Reconnect the negative battery terminal.
- Final Check: Turn the key to the ‘ON’ position (without starting the engine) for 30 seconds to allow the system to initialize. Then, start your vehicle and check for proper operation.
Verified Fitment For a Wide Range of GM Vehicles
This ECM is a direct replacement for multiple part numbers and fits a broad selection of GM cars, trucks, and vans. Please verify your vehicle is on this list and provide your VIN to ensure perfect programming. This module is compatible with part numbers: 12668866, 12668994, 12643636, 12663405, 12670335, 22819494, and 12692200.
- Buick Encore: 2013-2016 (1.4L)
- Cadillac ELR: 2014-2016
- Chevrolet Cruze: 2012-2015, 2016 (Limited)
- Chevrolet Express 2500/3500 Van: 2016 (4.8L, 6.0L)
- Chevrolet Silverado 2500/3500 Pickup: 2012-2016 (6.0L)
- Chevrolet Sonic: 2012-2016
- Chevrolet Spark: 2014-2015 (Gasoline Model)
- 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 & Denali Pickup: 2012-2016 (6.0L)
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential. It allows us to program the ECM with the exact software and calibrations your specific vehicle requires for proper engine management, emissions compliance, and communication with other onboard modules. This ensures a true plug-and-play installation.
Is any additional programming needed after installation?
No. This ECM comes fully programmed to your VIN. In most cases, you will not need to perform any additional procedures. However, some vehicles may require a simple security or crankshaft position sensor relearn procedure, which can often be done without special tools.
Is this a new or used part?
This is a high-quality, inspected, and tested recycled OEM part. Each unit is verified to be fully functional before being programmed with the latest GM software for your vehicle, offering OEM performance at a significant savings.
How do I find my original part number?
The part number is printed on a sticker on your original ECM. While matching the part number is helpful, providing the correct VIN is the most critical step, as we program the module based on your vehicle’s unique build. This unit replaces several part numbers, including 12668866, 12643636, and 22819494.
Will this fix my Check Engine Light?
If the Check Engine Light is caused by an internal failure of the ECM (like codes P0601 or P0606), then yes, this part will resolve the issue. However, if the light is on due to a bad sensor or other component, that separate issue will still need to be addressed.