Restore Your Corvette’s Brainpower and Performance
If your 2014-2016 Corvette is suddenly acting possessed—stalling, running rough, or flashing a Christmas tree of warning lights on the dash—the problem often points to one critical component: the Engine Control Module (ECM). As a technician with over two decades of experience, I’ve seen how a failing ECM can turn a high-performance machine into a frustrating, unreliable vehicle. It’s the central computer, the brain of your engine’s operations, and when it falters, everything else follows.
Common Symptoms of a Failing Corvette ECM
A bad ECM doesn’t always mean a completely dead car. The signs can be subtle at first and then grow progressively worse. I’ve diagnosed hundreds of these specific GM modules in my shop. Here’s what you should be looking for:
- ✔ Unexplained Check Engine Light (CEL) with communication-related codes (U-codes).
- ✔ Engine stalling, sputtering, or misfiring for no apparent reason.
- ✔ A complete no-start condition where the engine cranks but won’t fire up.
- ✔ Noticeable decrease in fuel economy and overall engine performance.
- ✔ Issues with the automatic transmission shifting erratically.
- ✔ Other modules, like the ABS or traction control, setting error codes due to loss of communication with the ECM.
Expert Pro Tip from a 20-Year Veteran
Before you condemn your ECM, always perform two simple checks. First, load-test your battery. These modern vehicles are incredibly sensitive to voltage, and a weak battery can cause a cascade of bizarre electronic issues that mimic ECM failure. Second, inspect the main engine wiring harness grounds, especially the ones near the module itself. On the C7 Corvette, the ECM is located under the dash on the right-hand (passenger) side cowl area. A loose or corroded ground can interrupt communication and trigger false codes. Checking these first can save you a lot of time and money.
The Direct Solution: A VIN-Programmed ECM
The old way of replacing an ECM involved buying the part, installing it, and then having your Corvette towed to a dealership for expensive programming. This process is time-consuming and costly. We’ve eliminated that headache. This ECM, part number 12676230, is the definitive solution for your vehicle.
Here’s how our process works for you:
- ✔ Provide Your VIN: After you complete your purchase, you simply send us your vehicle’s 17-digit VIN.
- ✔ We Handle the Programming: Our technicians use official GM tools to flash the module with the latest, most stable software specific to your Corvette’s configuration. This ensures perfect compatibility.
- ✔ Ready for Installation: The module arrives at your door ready to be installed. Once installed, you will only need to perform a simple security relearn procedure (often called a key cycle or anti-theft relearn), which typically doesn’t require any special tools. This synchronizes the new ECM with your car’s security system.
Guaranteed Compatibility and Fitment
General Motors frequently updates and supersedes part numbers. This single module is a direct replacement for a wide range of original part numbers, ensuring it’s the correct component for your vehicle. This module is compatible with the following part numbers:
12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, 12669318
While this listing is focused on the 2014-2016 Corvette, this versatile ECM is also the correct fit for a variety of other GM cars and trucks, including select models of the Silverado, Sierra, Camaro, CTS, ATS, and Escalade. This broad application speaks to the reliability and engineering of the component. By ordering from us, you get a proven part, programmed specifically for your Corvette, ready to restore the performance you expect.