Restore Your Corvette’s Peak Performance and Reliability
Is your C7 Corvette suffering from frustrating issues like intermittent stalling, a persistent Check Engine Light, or a complete no-start condition? These are classic signs of a failing Engine Control Module (ECM), the critical computer that manages your engine’s performance, fuel economy, and emissions. When the brain of your engine falters, it can turn your high-performance machine into an unreliable headache. This isn’t just an annoyance; it’s a critical failure that compromises safety and drivability. Don’t let a faulty module keep your Corvette parked in the garage.
We offer a direct, dependable solution: a replacement Engine Control Module, part number 12676230, professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). Before we ship, we load it with the latest, most stable software updates directly from GM. This means you receive a part that is 100% ready for installation, with no need for expensive dealership programming or specialized scan tools. This is the most efficient way to get your 2014-2016 Corvette ECM replaced and restore the precision and power you expect.
Case Study: A Tricky Diagnosis
A few months back, a 2015 Corvette Z06 was brought into the shop with a complaint that stumped two other technicians. The car would randomly refuse to start, but only after it was fully warmed up and sat for about 20 minutes. There were no consistent trouble codes, just a generic U0100 ‘Lost Communication with ECM’ that would appear and then clear itself. After confirming power and grounds were solid, I focused on the ECM itself. Using a thermal imager, I noticed the module’s temperature was spiking just before the no-start events. Heat soak was causing an internal processor failure. We replaced it with one of our VIN-programmed modules, and the problem was solved instantly. It’s a perfect example of how a failing 2014-2016 Corvette ECM can cause baffling, intermittent issues.
Common Signs of a Failing GM ECM
If you’re experiencing any of the following, a faulty engine computer could be the culprit. I’ve seen these symptoms countless times in my 20+ years of diagnostics.
- ✔ Check Engine Light is on with codes like P0601, P0606 (Internal Control Module Processor Error), or P060C.
- ✔ Unexplained drops in fuel economy.
- ✔ Engine cranks but refuses to start.
- ✔ Intermittent stalling or rough idling, especially when warm.
- ✔ Noticeable loss of power and poor acceleration.
- ✔ Communication errors with scan tools or other modules (U-codes).
A Straightforward Guide to Installation
Replacing the ECM on your Corvette is a manageable job for a DIY enthusiast. For the C7 Corvette, the module is located in the passenger-side cowl area, under the dash. Always consult a vehicle-specific service manual for detailed diagrams.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes for all systems to power down completely.
- Locate the ECM: On the 2014-2016 Corvette, access the ECM by removing the passenger side cowl trim panel and sometimes the glove box assembly. It is mounted vertically against the firewall.
- Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and pull them straight out. Never force them. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt the mounting hardware holding the ECM to its bracket and carefully remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure it with the original hardware. Reconnect the electrical connectors, ensuring they click securely into place.
- Final Steps: Reconnect the negative battery terminal. The vehicle may require a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Start the engine and let it idle to confirm proper operation.
Verified Vehicle Compatibility
While this is the correct part for the 2014-2016 Corvette, this versatile ECM is also a direct replacement for numerous other GM cars, trucks, and SUVs. It is compatible with part numbers 12692067, 12656993, 12662034, and more. Please verify your part number or contact us with your VIN to confirm fitment.
ATS 14-16 (LH engine compartment)
CAMARO 16 (6.2L)
CANYON 15-16 (3.6L)
COLORADO 15-16 (3.6L)
CTS 14-16 (3.6L & 6.2L)
ESCALADE & ESV 15-16
SIERRA 1500 / DENALI 14-16
SILVERADO 1500 PICKUP 14-16
SUBURBAN 1500 15-16
TAHOE 15-16
XTS 14-16 (3.6L)
YUKON & YUKON XL 1500 15-16
Frequently Asked Questions
Frequently Asked Questions
What exactly is VIN programming?
VIN programming is the process where we load your vehicle’s specific identification number and all related factory software calibrations into the ECM. This ensures the module communicates perfectly with your car’s engine, transmission, and security systems, just like the original part from the factory.
Do I need to do any additional programming after installation?
No. This module arrives ready to install. In some cases, a simple, tool-free security relearn procedure (like leaving the key in the ‘ON’ position) may be necessary, which is outlined in your owner’s manual.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit VIN. We cannot program and ship your part without it, so please provide it promptly to avoid delays.
Is this a reliable, long-term fix?
Absolutely. We use genuine GM software and test our modules to ensure they meet or exceed OEM specifications. By loading the newest updates, we often correct factory flaws, providing a more stable and reliable solution for your 2014-2016 Corvette ECM.
Will this fix my specific problem?
This part corrects issues directly caused by a failing ECM. While symptoms like stalling or no-start are common indicators, it’s always best to have a proper diagnosis performed to rule out other potential causes like fuel pump or sensor failures.