Restore Peak Performance to Your GM Vehicle
Is your 2016 Camaro, Silverado, or Corvette suffering from a persistent check engine light, erratic performance, or a frustrating no-start condition? The Engine Control Module (ECM) is the brain of your vehicle’s powertrain, and when it fails, it can cause a cascade of confusing and costly problems. I’ve spent over two decades in the garage, and I’ve seen firsthand how a faulty ECM can sideline an otherwise perfectly good vehicle. This isn’t just a replacement part; it’s a complete, ready-to-install solution designed to get you back on the road with confidence.
We take the guesswork and dealer expense out of the equation. Each 2016 Camaro Engine Control Module is meticulously programmed with the latest official GM software updates specifically for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and our experts will flash the module to match your car’s exact specifications. This ensures seamless integration and restores the precise fuel, spark, and transmission control your engine needs to run efficiently and reliably.
From the Diagnostic Bay
A customer brought in a 2016 Camaro 6.2L with an intermittent stalling issue that no one could solve. It would run fine for days, then suddenly die at a stoplight. There were no consistent trouble codes, just a history of random communication errors (U0100). After ruling out fuel and ignition hardware, we focused on the ECM. On the bench, we found the processor was dropping communication under certain thermal loads—a classic sign of internal failure. We replaced it with one of our VIN-programmed modules, and the problem was solved instantly. It’s a reminder that sometimes the most elusive electrical gremlins live inside the vehicle’s main computer.
Common Signs of a Failing GM ECM
- ✔ Check Engine Light is on with codes pointing to internal module failure (e.g., P0601, P0606).
- ✔ Vehicle refuses to start or has intermittent starting problems.
- ✔ Noticeable decrease in fuel economy.
- ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
- ✔ Automatic transmission shifts harshly or at the wrong times.
- ✔ Loss of communication with the scan tool or other modules (U-series codes).
- ✔ Other warning lights on the dash, like traction control or ABS, may illuminate.
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the ECM: On most compatible vehicles like the Camaro, Silverado, and Sierra, the ECM is found in the engine compartment, typically on the driver’s side front. On the Corvette, it’s located under the dash on the passenger’s side cowl.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be released. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Bolt the new, pre-programmed module into place. Reconnect the electrical harnesses, ensuring they click securely into position.
- ✔ Reconnect Battery: Reattach the negative battery terminal.
- ✔ Perform Relearn Procedure: While the module is programmed, your vehicle may require a security relearn or idle relearn procedure. A common method is to turn the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’ for 10 seconds, and repeat three times before starting the engine. Consult your vehicle’s service information for the specific procedure.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for part number 12663391 and is interchangeable with several other GM part numbers, including 12692067, 12676230, 12656993, and more. It is guaranteed to fit the following vehicles:
- ATS: 2014-2016 (3.6L)
- CAMARO: 2016 (6.2L)
- CANYON: 2015-2016 (3.6L)
- COLORADO: 2015-2016 (3.6L)
- CORVETTE: 2014-2016
- CTS: 2014-2016 (3.6L & 6.2L)
- ESCALADE / ESCALADE ESV: 2015-2016
- SIERRA 1500 / SIERRA DENALI 1500: 2014-2016
- SILVERADO 1500 PICKUP: 2014-2016
- SUBURBAN 1500: 2015-2016
- TAHOE: 2015-2016
- XTS: 2014-2016 (3.6L)
- YUKON / YUKON XL 1500: 2015-2016
Note: Please verify your original part number or consult the detailed fitment list to ensure compatibility. Correct programming requires your VIN.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We will program the module before shipping it to you.
Is this a simple plug-and-play installation?
Yes, this module is programmed to your VIN, so it’s ready to install. However, some GM vehicles require a security relearn procedure (often called a key relearn or anti-theft relearn) after installation, which can typically be done without special tools.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM (common codes P0601-P0606), this part is the correct fix. It’s crucial to properly diagnose the issue first, as other sensors or wiring problems can also cause a check engine light.
Do I need to send my old ECM (core) back?
No core charge or return is required for this specific part. You can recycle your old module locally.
What if I have a different part number on my original module?
This module is compatible with a wide range of part numbers, including 12692067, 12676230, 12656993, and others listed. As long as your vehicle is on the compatibility list, this module will function correctly once programmed to your VIN.