Restore Peak Performance to Your Cadillac XTS
Is your 2014-2016 Cadillac XTS suffering from perplexing engine problems? Issues like a persistent Check Engine Light, erratic idling, stalling, or a complete no-start condition often point to a failing Engine Control Module (ECM). The ECM is the master computer of your vehicle’s powertrain, meticulously managing everything from fuel injection and spark timing to transmission shifts and emissions control. When it fails, the entire system’s performance and reliability are compromised. This replacement Engine Control Module, part number 12669318, is the definitive solution to restore your vehicle’s factory performance and dependability.
Common Symptoms of a Failing 2014-2016 XTS Engine Module
- ✔ Persistent and illuminated Check Engine Light (CEL)
- ✔ Engine stalling or shutting off while driving
- ✔ Rough or unstable engine idle
- ✔ Noticeable decrease in fuel economy
- ✔ Hesitation or stumbling during acceleration
- ✔ Complete no-start or hard-starting condition
- ✔ Transmission shifting problems or harsh shifts
- ✔ Communication errors with diagnostic scan tools
The Plug-and-Play Solution
Don’t let a faulty ECM keep your luxury sedan off the road. This isn’t just a generic part off the shelf; it’s a comprehensive solution. We take the guesswork out of the repair by pre-programming this module specifically for your vehicle using the VIN you provide. This process loads the latest GM-certified software and vehicle-specific parameters, ensuring that the module communicates flawlessly with all other systems in your car right out of the box. This critical step saves you a costly trip to the dealership for programming and gets you back on the road faster.
Broad GM Compatibility
While this is a perfect fit for the 2014-2016 XTS Engine Module, its advanced design allows it to be compatible with a wide array of other General Motors vehicles. It directly replaces multiple part numbers, including 12692067, 12676230, 12656993, and more. It is a common ECM for popular models like the Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac ATS, CTS, Escalade, and Chevrolet Corvette from the same era. Please verify your original part number or consult the detailed fitment list to confirm compatibility with your specific vehicle.
Frequently Asked Questions
Do I need to have this module programmed?
No. We handle the programming for you before shipment. Simply provide your vehicle’s 17-digit VIN during or after checkout, and we will flash the module with the correct, updated software for your specific vehicle.
Where is the VIN located on my vehicle?
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, and on your vehicle’s registration and insurance documents.
Is any other procedure required after installation?
In many cases, you may need to perform a simple security relearn procedure, also known as a Passlock or anti-theft relearn. This can typically be done without any special tools and involves a sequence of key turns. Instructions are readily available online or in service manuals for your specific model.
How do I know if my ECM is actually the problem?
While the symptoms listed are strong indicators, a definitive diagnosis from a qualified mechanic is always recommended. This involves checking for trouble codes, testing power and ground signals to the ECM, and ruling out other potential causes like faulty sensors or wiring.
Is this a new or used part?
This is a high-quality, tested, and verified genuine OEM part that has been inspected to ensure it meets or exceeds original performance specifications. It is ready for programming and installation.