Restore Peak Performance to Your Vehicle
Is your vehicle suffering from a persistent check engine light, poor fuel economy, or unpredictable engine behavior? A failing Engine Control Module (ECM) is often the culprit, disrupting communication between critical systems and leaving you stranded. This direct-fit ECM is the definitive solution, arriving fully programmed to your specific Vehicle Identification Number (VIN). We handle the complex programming for you, ensuring that when the part arrives, it’s ready for a straightforward installation, getting you back on the road with confidence and saving you a costly trip to the dealership.
Common Symptoms & Your Solution
A faulty ECM can manifest in numerous ways, often causing confusion and frustration. If you’re experiencing any of the following, this module is the reliable fix you need:
- Persistent Check Engine Light (CEL): Especially with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0606, or other U-codes.
- Engine Performance Issues: Stalling, misfiring, rough idling, hesitation during acceleration, or a noticeable loss of power.
- No-Start Condition: The engine cranks but refuses to start, often due to a lack of fuel or spark commands from the ECM.
- Poor Fuel Economy: An incorrect air/fuel mixture controlled by a failing module can drastically reduce your MPG.
- Erratic Transmission Shifting: The ECM works with the transmission controller; a fault can lead to harsh or incorrect gear changes.
This pre-programmed 2014-2016 Cadillac ATS ECM 12669318 is engineered to resolve these issues by restoring the brain of your vehicle’s engine management system.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Eliminates the need for expensive dealership tools or programming. This module is ready for installation right out of the box.
- ✔ Loaded with Latest GM Updates: We flash the unit with the most current, stable software from General Motors to ensure optimal performance and efficiency.
- ✔ Direct-Fit Replacement: Guaranteed to match the form and function of the original module, ensuring a hassle-free installation process. This unit is a direct replacement for part numbers 12692067, 12676230, 12656993, and more.
- ✔ Restored Engine Performance: Regain the smooth operation, power, and fuel efficiency you expect from your vehicle.
- ✔ Cost-Effective Solution: A smart, affordable alternative to the high costs associated with dealership parts and labor.
- ✔ This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
“In my 20 years of diagnostics, I’ve seen countless issues caused by improperly matched control modules. Simply installing a used ECM from another vehicle is a recipe for disaster—it can trigger security lockouts, cause system conflicts, and even damage other components. The key to a successful repair is ensuring the module’s software is a perfect match for your vehicle’s unique configuration. That’s why we take your VIN and program the module *before* it ships. This critical step ensures all onboard systems communicate correctly, just as the factory intended.”
Don’t let a faulty computer keep your car, truck, or SUV sidelined. By providing your VIN at checkout, you’re getting more than just a part; you’re getting a fully integrated solution designed for your specific vehicle. This commitment to precision makes our 2014-2016 Cadillac ATS ECM 12669318 the trusted choice for both professional technicians and DIY mechanics.
Frequently Asked Questions
Do I need to do any programming myself?
No. This module arrives fully programmed to the VIN you provide. In most cases, you will only need to perform a simple security relearn procedure, which typically involves cycling the key in the ignition. We provide instructions for this easy process.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We will contact you with instructions on how to provide it. We cannot ship your part until we have programmed it with your VIN.
Will this fix my specific problem?
This ECM is a guaranteed fix for a faulty module. However, it is crucial that your vehicle has been properly diagnosed. This part will not solve issues related to other faulty components like sensors, wiring, or mechanical problems. Always confirm the diagnosis before ordering.
Is this a brand new part?
This is a high-quality, genuine GM module that has been thoroughly inspected and tested to ensure it meets or exceeds original equipment standards. It is programmed with the latest software and is ready for service.
What if my original part number is not on the list?
The provided list of compatible part numbers is extensive but may not be exhaustive. If you do not see your exact part number, please contact us with your VIN and original part number to confirm compatibility before ordering.
Is this ECM compatible with other vehicles besides the Cadillac ATS?
Yes. This 2014-2016 Cadillac ATS ECM 12669318 is compatible with a wide range of GM vehicles, including the Silverado 1500, Corvette, Camaro, Escalade, Tahoe, and more. Please refer to the detailed fitment list on this page to confirm it matches your specific make, model, and year.