Restore Peak Performance to Your GM Vehicle
Is your 2014-2016 Cadillac XTS, Silverado, Sierra, or another compatible GM vehicle suffering from frustrating and unpredictable engine problems? Issues like a persistent Check Engine Light, rough idling, stalling, poor fuel economy, or a complete no-start condition often point to a single culprit: a failing Engine Control Module (ECM). As the central computer for your engine, the ECM is responsible for managing everything from fuel injection and ignition timing to emissions control and transmission shifting. When it fails, the entire vehicle’s performance and reliability are compromised.
This direct-replacement Engine Control Module, part number 12673195, is the definitive solution to get your vehicle back on the road and running like new. We take the guesswork and hassle out of the replacement process. Unlike a generic module from a parts store or a salvage yard, each unit we ship is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). This ensures seamless communication with all other onboard systems, eliminating the need for an expensive trip to the dealership for coding. We install the latest GM-certified software updates, so you’re not just replacing the part—you’re getting the most current logic for optimal engine performance and efficiency.
From the Diagnostic Bay
We had a 2015 Silverado 1500 come into the shop with a list of bizarre, intermittent symptoms. The owner complained of random stalling at stoplights, occasional hard shifting, and a check engine light that would come and go. We checked for vacuum leaks, tested sensors, and even inspected the fuel pump. Everything seemed to be in spec. The codes were generic communication errors that didn’t point to a specific component. After exhausting the usual suspects, we hooked up an oscilloscope to the ECM’s main communication lines. We found the signal would periodically drop out, indicating an internal failure in the module itself. We installed one of our VIN-programmed ECMs, performed the quick security relearn, and the truck ran perfectly. It’s a classic case of how a failing computer can mimic a dozen other mechanical problems, making proper diagnosis key.
Common Symptoms of a Failing ECM
- ✔ Persistent and illuminated Check Engine Light (CEL).
- ✔ Engine stalling or shutting off unexpectedly while driving.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine misfires, stumbling, or rough idling.
- ✔ Failure to start, even with a good battery and starter.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication error codes stored when scanned (U-codes).
- ✔ Failure to pass state emissions testing.
Why Choose Our 2014-2016 XTS Engine Module?
Choosing the right replacement part is critical for a lasting repair. Our modules offer a reliable and cost-effective alternative to the dealership. The core of our service is the VIN-specific programming. When you provide us with your VIN during checkout, our technicians flash the module with the exact software configuration your vehicle had when it left the factory, plus any subsequent official updates from GM. This makes the installation process as close to plug-and-play as possible. This module is a genuine OEM part, ensuring perfect fitment and function. It’s a direct replacement for a wide range of part numbers, including 12692067, 12676230, 12656993, and more, making it a versatile solution for many popular GM trucks, SUVs, and performance cars.
Wide-Ranging GM Compatibility
While this is a primary fit for the Cadillac XTS, part number 12673195 is the designated electronic control module for a vast lineup of General Motors vehicles. This includes workhorses like the 2014-2016 Silverado 1500 and Sierra 1500, luxury SUVs like the Escalade and Yukon, and performance icons like the Corvette and Camaro. Please review the detailed fitment list to confirm this module is the correct part for your specific year, make, model, and engine option.
Frequently Asked Questions
Do I need to program this module after I receive it?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN at checkout, and the module will arrive ready to be installed and synced with your vehicle.
What is a security relearn procedure?
This is a simple, key-on/key-off procedure that you can do yourself in about 10-15 minutes. It allows the new ECM to sync with your vehicle’s existing anti-theft system and keys. We include easy-to-follow instructions with your order.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM, then yes, this part will resolve the issue. It is crucial to have your vehicle properly diagnosed to ensure the ECM is the root cause of the problem before ordering.
Is this a brand new part?
This is a genuine, tested OEM part that has been verified to meet or exceed all original factory specifications. It is guaranteed to function correctly once installed.
Where is the ECM located on my 2015 Silverado 1500?
On most GM trucks and SUVs from this era, including the Silverado, Sierra, and Tahoe, the ECM is located in the engine compartment on the driver’s side, near the front. Always disconnect the battery before attempting removal or installation.
What other part numbers is this compatible with?
This module is a direct replacement for part numbers 12692067, 12676230, 12656993, 12662034, 12672537, 12663391, 12672963, and 12669318.