Restore Peak Performance to Your C7 Corvette
The Engine Control Module (ECM) is the electronic brain of your 2014-2016 Corvette’s powertrain. It meticulously manages everything from fuel injection and ignition timing to emissions systems and transmission shifting, ensuring the legendary performance and reliability you expect. When this critical component begins to fail, it can lead to a host of frustrating and performance-robbing issues, turning your driving pleasure into a diagnostic nightmare. This genuine GM control module, part number 12662034, is the definitive solution to restore your vehicle’s factory-perfect operation.
We take the guesswork and dealership hassle out of the equation. Unlike a standard off-the-shelf part, this ECM arrives at your door pre-programmed with the latest official GM software, specifically flashed to match your vehicle’s unique Vehicle Identification Number (VIN). This VIN-specific programming ensures that all systems communicate correctly and that your engine operates precisely as its engineers intended. Simply provide us with your VIN after purchase, and our technicians will handle the complex programming, saving you time, money, and a trip to the service center.
From the Diagnostic Bay
We had a 2015 Corvette Stingray come in with a problem that was driving the owner crazy. It had an intermittent stalling issue when coming to a stop, but no consistent check engine light codes. We checked fuel pressure, sensors, and wiring, but everything seemed fine. On a hunch, we monitored the live data stream from the ECM and noticed erratic voltage readings just before a stall event. After swapping in a new, correctly programmed ECM, the problem vanished completely. The original module had an internal fault that only showed up under specific conditions. It’s a perfect example of how a faulty computer can mimic a mechanical problem, and why a reliable, correctly programmed module is non-negotiable.
Is Your Vehicle Showing Signs of ECM Failure?
A failing ECM can manifest in various ways, often mimicking other component failures. If your Corvette or other compatible GM vehicle is experiencing any of the following, a faulty engine computer could be the culprit:
- ✔ Check Engine Light is on or flashing with various codes (especially communication or internal processor codes).
- ✔ Noticeable decrease in fuel economy.
- ✔ Engine misfires, stumbles, or runs rough.
- ✔ Unexplained stalling or difficulty starting the engine.
- ✔ The vehicle enters a reduced power or “limp” mode.
- ✔ Automatic transmission shifts harshly or at the wrong times.
- ✔ Inability to communicate with the ECM using a diagnostic scan tool.
The Right Solution: A Pre-Programmed 2014-2016 Corvette Engine Control Module
This module is a direct-fit replacement, designed to meet or exceed original equipment specifications. By choosing our pre-programmed module, you are getting a component that is ready for installation right out of the box. The programming process ensures it has the most current software available from General Motors, addressing any potential bugs or drivability issues that may have been discovered since your vehicle was new. This unit is also compatible with a wide range of other GM vehicles, including the Silverado, Sierra, Camaro, and Cadillac models, making it a versatile and reliable solution. Please verify your part number or consult the fitment list to confirm compatibility.
Installation is straightforward for an experienced DIYer or any professional technician. After providing your VIN for programming, you’ll receive the module, ready to be installed. While the programming is done, some vehicles may require a simple security relearn procedure or a Crankshaft Variation (CASE) relearn after installation, which can often be completed without specialized tools. This final step syncs the new module with your vehicle’s anti-theft and engine sensor systems.
Do I need to do any programming or flashing myself?
No. The main programming is done by us before we ship the part. We use your vehicle’s VIN to load the correct, most up-to-date GM software onto the module, making it ready for your specific car or truck.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this a simple plug-and-play installation?
For most vehicles, it is very close to plug-and-play. After the physical installation, some models may require a security relearn procedure to sync with your keys, which typically involves a series of key cycles. A CASE relearn may also be needed to sync with the crankshaft position sensor for optimal performance. These are standard procedures after an ECM replacement.
Will this fix my check engine light?
This module will resolve the check engine light and any related symptoms if the ECM itself is the faulty component. It is crucial to have the vehicle properly diagnosed to confirm the ECM is the root cause before ordering.
What if my original part number is different from 12662034?
This module replaces several GM part numbers. Please check the list of compatible part numbers in the description (e.g., 12692067, 12676230, etc.). If you are still unsure, please contact us with your VIN, and we will be happy to verify compatibility for you.