Restore Peak Performance to Your Cadillac XTS
Is your 2014-2016 Cadillac XTS suffering from erratic engine behavior, a persistent check engine light, or a frustrating no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer that governs your vehicle’s engine performance, fuel economy, and emissions. A faulty ECM can cripple your vehicle, leaving you stranded and facing a complex repair. This replacement Engine Control Module, part number 12673195, is the definitive solution to restore your vehicle’s factory performance and reliability.
This isn’t just a generic part off the shelf. We provide a fully programmed module tailored specifically to your vehicle. Upon purchase, you will provide us with your Vehicle Identification Number (VIN), and our technicians will flash the module with the latest, most stable software updates directly from GM. This critical step ensures seamless communication between the ECM and all other vehicle systems, eliminating the need for an expensive trip to the dealership for programming. It’s a direct-fit solution designed to get you back on the road quickly and confidently.
Expert Pro Tip
Before replacing an ECM, always perform a thorough check of the vehicle’s battery, charging system, and all main power and ground connections to the module. A weak battery or a corroded ground wire can mimic ECM failure symptoms, leading to an unnecessary and costly replacement. A few minutes with a multimeter can save you hundreds of dollars.
Diagnosing a Failing 2014-2016 XTS Engine Control Module
The ECM is a sophisticated component, and its failure can manifest in numerous ways. If you’re experiencing any of the issues below, it’s highly probable that your engine’s computer is the culprit. This part is the reliable fix for these common problems and is also a direct replacement for multiple part numbers, including 12692067, 12676230, 12656993, and 12662034.
Common Symptoms of a Bad ECM
- ✔ Check Engine Light: The most common indicator, often with communication-related error codes (U-codes) or performance codes that don’t resolve with other part replacements.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly, run rough, or misfire as the ECM fails to correctly manage spark and fuel delivery.
- ✔ No-Start Condition: The engine cranks but refuses to start because the ECM is not activating the fuel pump or ignition coils.
- ✔ Poor Fuel Economy: A sudden and unexplained drop in MPG can be caused by the ECM providing incorrect fuel mixture calculations.
- ✔ Shifting Problems: In many vehicles, the ECM works with the Transmission Control Module (TCM). A failing ECM can cause harsh shifting or erratic transmission behavior.
- ✔ Intermittent Electrical Issues: Fans running constantly or other strange electronic behavior can sometimes be traced back to a failing central computer.
Plug-and-Play Solution with VIN Programming
Why choose our module? We take the guesswork and hassle out of the replacement process. The biggest hurdle in replacing a modern ECM is the need for specialized programming. Our service includes this crucial step. By flashing the module with your car’s specific VIN, we ensure all factory settings, anti-theft protocols (passlock/immo), and powertrain parameters are correctly loaded. While some vehicles may require a simple key relearn or security relearn procedure upon installation (a process that can often be done in your driveway), the core programming is complete, saving you significant time and money.
This 2014-2016 XTS Engine Control Module is also compatible with a wide array of other GM vehicles, including the Chevrolet Silverado, GMC Sierra, Cadillac ATS, CTS, Escalade, and Chevrolet Corvette. Please verify your original part number or consult the detailed fitment list to ensure compatibility.
Frequently Asked Questions
Do I need to have this ECM programmed?
No. We handle the programming for you before shipment. Simply provide your vehicle’s VIN at checkout, and we will flash the module with the latest GM software specific to your car. This makes installation much simpler.
What is an ECM and what does it do?
The Engine Control Module (ECM), also known as the Engine Control Unit (ECU), is your vehicle’s main computer. It controls all aspects of engine function, including fuel injection, ignition timing, idle speed, and emissions systems, to ensure optimal performance and efficiency.
Will I need to perform any other steps after installation?
In some cases, a simple security relearn procedure may be necessary to sync the new ECM with your vehicle’s anti-theft system. This can typically be done without special tools and instructions can be readily found online for your specific model. It’s a straightforward process that involves cycling the key in the ignition.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for a range of part numbers, including 12692067, 12676230, 12656993, 12662034, 12672537, 12663391, 12672963, and 12669318. It is designed to function identically to the original equipment.
How do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a plate on the driver’s side dashboard visible through the windshield.