Restore Peak Performance to Your GM Vehicle
Is your 2016 Camaro, Silverado, or Corvette running rough, throwing confusing check engine lights, or refusing to start? The Engine Control Module (ECM) is the brain of your vehicle’s powertrain, and when it fails, it can cause a cascade of frustrating and hard-to-diagnose issues. I’ve spent over two decades in the shop, and I’ve seen firsthand how a faulty ECM can mimic a dozen other problems, leading to wasted time and money on parts you don’t need. This isn’t just a replacement part; it’s a direct solution to restore your vehicle’s factory-specified operation.
This genuine GM Engine Control Module, part number 12672537, arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We handle the complex part—flashing the module with the latest GM software updates—so you don’t have to. This eliminates the need for expensive dealership programming or specialized scan tools, making it a straightforward fix for both seasoned mechanics and determined DIY enthusiasts. By installing a precisely matched 2016 Camaro Engine Control Module, you’re not just clearing codes; you’re ensuring that fuel delivery, ignition timing, and transmission shifting all work in perfect harmony, just as the engineers intended.
A Technician’s Notebook: The Phantom Misfire Case
A few months back, a 2016 Camaro SS rolled into my bay with a persistent, yet intermittent, misfire on cylinder 3 (P0303) and a random communication loss code (U0100). The owner had already replaced the spark plug, ignition coil, and even the fuel injector for that cylinder, but the problem kept returning, especially on hot days. My initial diagnostics showed everything was firing as it should. It wasn’t until I put a lab scope on the injector driver circuit directly at the ECM connector that I found the issue. The ECM’s internal driver was failing under heat soak, cutting power to the injector intermittently. We installed a VIN-programmed ECM, and the car has run flawlessly ever since. It’s a classic example of how a failing ECM can send you chasing ghosts.
Is Your Vehicle Showing These Signs of ECM Failure?
- ✔ Check Engine Light is on with codes like P0601 (Internal Control Module Memory Check Sum Error), P0606 (ECM/PCM Processor Fault), or various communication codes (U-series).
- ✔ Engine cranks but refuses to start, or experiences intermittent no-start conditions.
- ✔ Noticeable decrease in fuel economy and poor engine performance.
- ✔ Rough or unstable idle and stalling.
- ✔ Automatic transmission shifts erratically or harshly.
- ✔ Unexplained electrical issues or warning lights on the dashboard.
Your Straightforward Installation Guide
Replacing your ECM is a manageable job that you can do with basic hand tools. This guide provides a general overview for a typical installation on a 2016 Camaro. Locations vary on other models like the Silverado or Corvette, so always verify the ECM’s position on your specific vehicle.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the ECM: On the 2016 Camaro, the ECM is typically found in the engine bay. On other compatible vehicles, it may be on the firewall or under the cowl.
- Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harnesses and gently pull them straight out from the module. Never force them. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt the mounting hardware holding the old ECM in place. Keep the hardware safe as you will reuse it.
- Install the New ECM: Mount your new, pre-programmed 2016 Camaro Engine Control Module using the original hardware. Ensure it is secure.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new module until you hear a click, and secure the locking tabs. Reconnect the negative battery terminal.
- Final Step: In some cases, a security or anti-theft relearn procedure may be necessary. This can often be done without a scan tool by cycling the key. Your vehicle’s service manual will have the specific procedure if required.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12672537 and is interchangeable with several other GM part numbers, including 12692067, 12676230, 12656993, 12662034, and more. It is guaranteed to fit the following vehicles, provided the part number on your original module matches:
CAMARO (2016) with 6.2L Engine
CANYON (2015-2016) with 3.6L Engine
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 & SIERRA DENALI 1500 (2014-2016)
SILVERADO 1500 PICKUP (2014-2016)
SUBURBAN 1500 (2015-2016)
TAHOE (2015-2016)
YUKON & YUKON XL 1500 (2015-2016)
XTS (2014-2016) with 3.6L Engine
Note: Always match the part number from your original module or contact us with your VIN to confirm compatibility before ordering.
Your Questions, Answered by an Expert
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. We use your VIN to flash the module with the latest GM-certified software for your specific vehicle configuration. It arrives ready for installation.
What information do you need from me?
After you complete your purchase, you MUST provide us with your 17-digit Vehicle Identification Number (VIN). We cannot program or ship your module without it.
Is this a simple plug-and-play installation?
For most vehicles, yes. After installing the module, some GM vehicles may require a simple key-cycle security relearn procedure, which does not require special tools. We recommend checking your service manual for specifics.
Will this fix my check engine light?
If the check engine light and other symptoms are caused by a faulty ECM, then yes, this part will resolve the issue. It’s crucial to ensure the ECM is the actual point of failure. A professional diagnosis is always recommended.
How is this different from buying one from a junkyard?
A used module from a junkyard will be programmed to the donor vehicle and will not work in yours without being wiped and reprogrammed by a dealer or a specialist with expensive tools. Our service saves you that significant cost and hassle.
Does this part come with a warranty?
Yes, all our modules come with a warranty. Please see the warranty tab on the product page for full details and duration.