Restore Peak Performance and Reliability to Your GM Vehicle
Is your Camaro, Silverado, or Corvette suffering from frustrating issues like a persistent check engine light, erratic engine behavior, or a complete no-start condition? You’re not alone. The Engine Control Module (ECM) is the brain of your vehicle’s powertrain, and when it fails, it can cause a cascade of problems that are often difficult to diagnose. This isn’t just an inconvenience; it’s a critical failure that can leave you stranded. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can mimic a dozen other issues, leading to wasted time and money on unnecessary repairs.
This replacement Engine Control Module, part number 12676230, is the definitive solution. We take the guesswork and hassle out of the repair by programming the module specifically for your vehicle using your VIN. This means it arrives at your door loaded with the latest factory software from GM, ensuring optimal performance, fuel efficiency, and emissions control. You get a reliable part that’s ready for a straightforward installation, saving you a costly trip to the dealership for programming.
Case Study: A Tricky Diagnosis
A customer brought in a 2016 Chevy Silverado 1500 with an intermittent no-start and a flickering check engine light. They had already replaced the battery and alternator with no success. My initial scan pulled several communication loss codes, including the infamous U0100 (Lost Communication With ECM/PCM). While this can point to wiring, I’ve learned to check the source first. After verifying power and ground to the module were solid, we tested the ECM itself and found it was failing internally, but only when it warmed up. By replacing it with a VIN-programmed module like this one, we resolved all the codes and the no-start condition in a single visit. It’s a classic example of how the right part, properly prepared, is the key to an efficient and lasting repair.
Common Signs of a Failing ECM
If you’re experiencing any of the following, a faulty engine computer could be the culprit. A failing module can store diagnostic trouble codes (DTCs) like P0601, P0606, or various U-codes.
- ✔ Check Engine Light is on or flashes intermittently
- ✔ Engine cranks but will not start
- ✔ Noticeable drop in fuel economy
- ✔ Rough idling, stalling, or hesitation during acceleration
- ✔ Transmission shifting problems or harsh shifts
- ✔ Loss of communication with the scan tool
A Straightforward Guide to Installation
Installing your new 2016 Camaro Engine Control Module is a manageable job for a DIY enthusiast or a quick task for a professional. Our pre-programming service handles the most complex step for you.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the ECM: On most compatible vehicles (like the Silverado/Sierra and Camaro), the ECM is located in the engine compartment. On others, like the Corvette, it may be under the cowl. Refer to a vehicle-specific repair manual if you are unsure.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be released. Once disconnected, unbolt the old module from its mounting bracket and remove it.
- Install the New Module: Bolt the new, programmed ECM into place. Reconnect the electrical harnesses, ensuring they click securely into place.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Perform Security Relearn: Your vehicle will likely require a security or anti-theft relearn procedure to recognize the new ECM. This procedure is simple, typically involves turning the key to the ‘ON’ position for 10-15 minutes, and does not require special tools. Instructions can be easily found online for your specific model.
Verified Vehicle Compatibility
This module is a direct replacement for multiple part numbers, including 12692067, 12676230, 12656993, and more. It is guaranteed to fit the following GM models and engine configurations:
CAMARO (2016) with 6.2L Engine
CANYON / COLORADO (2015-2016) with 3.6L Engine
CORVETTE (2014-2016)
CTS (2014-2016) with 3.6L or 6.2L Engines
ESCALADE / ESCALADE ESV (2015-2016)
SIERRA 1500 / SILVERADO 1500 (2014-2016)
SUBURBAN 1500 (2015-2016)
TAHOE (2015-2016)
YUKON / YUKON XL 1500 (2015-2016)
XTS (2014-2016) with 3.6L Engine
Note: Please verify your specific part number or contact us with your VIN to ensure perfect compatibility.
Frequently Asked Questions (FAQ)
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your vehicle’s 17-digit Vehicle Identification Number (VIN). We will program the module with the latest GM software matched to your VIN before shipping.
Is this a plug-and-play part?
Almost. Because we pre-program it to your VIN, you will not need a dealer or advanced scan tool for software flashing. However, you will need to perform a simple, tool-free security relearn procedure after installation so your vehicle’s anti-theft system recognizes the new module.
Will this fix my specific problem?
This module corrects issues directly caused by a faulty ECM, such as internal processor errors (P0601), no-start conditions, and communication failures. While it solves many common problems, you should ensure your vehicle has been properly diagnosed, as other issues (like wiring or sensor faults) can cause similar symptoms.
Does this module replace other part numbers?
Yes, this ECM is a compatible replacement for a wide range of part numbers, including 12692067, 12656993, 12662034, 12672537, 12673195, and others listed in the description. It is a reliable, updated component for many GM vehicles.
Do I need to send my old ECM back?
No, there is no core charge or requirement to return your old module.