Restore Peak Performance to Your GM Vehicle
Is your Chevrolet, GMC, or Cadillac suffering from perplexing issues like a persistent check engine light, poor fuel economy, erratic shifting, or a no-start condition? The Engine Control Module (ECM), often called the brain of your vehicle, is frequently the culprit. This vital component manages everything from fuel injection and ignition timing to emissions control and transmission function. When it fails, the symptoms can be widespread and frustrating. This listing is for a genuine GM Engine Control Module, part number 12673195, which comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This means no expensive trips to the dealership for programming—it arrives ready for a straightforward installation.
From the Diagnostic Bay
We had a 2016 Silverado 1500 come into the shop with a complaint of a random, harsh 1-2 shift and intermittent stalling at stoplights. The owner had already replaced the throttle body and a few sensors based on forum advice, but the problem persisted. No specific transmission codes were present, only a generic network communication code that would come and go. After hours of chasing wires, we checked the live data from the ECM and noticed erratic voltage readings from key sensors, despite the sensors themselves testing fine. We swapped in a known-good, programmed ECM, and the truck immediately ran perfectly. The original module had an internal fault that was corrupting data, causing the transmission controller to command harsh shifts. It’s a classic case of a failing ECM creating ghost problems elsewhere in the vehicle.
Is Your Vehicle Exhibiting These Symptoms?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, a faulty engine computer could be to blame:
- ✔ Check Engine Light is illuminated with various, often unrelated, trouble codes.
- ✔ Vehicle refuses to start or has difficulty starting.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine stalling, stumbling, or misfiring.
- ✔ Rough or inconsistent idling.
- ✔ Automatic transmission shifts harshly or at the wrong times.
- ✔ Loss of power and poor acceleration.
- ✔ Communication errors with diagnostic scan tools.
The Right Solution: A VIN-Programmed 2016 Camaro Engine Control Module
Simply buying a used ECM from a salvage yard won’t work. Modern GM vehicles utilize sophisticated anti-theft and communication systems that require the ECM to be precisely matched to the VIN of the vehicle it’s installed in. Our professional programming service eliminates this barrier. When you order, you provide us with your VIN. We then flash this module with the latest, most stable software release from General Motors for your exact vehicle configuration. This ensures all systems—from the engine and transmission to the anti-lock brakes and body control module—communicate seamlessly, restoring your vehicle’s original performance and reliability.
This module is a direct replacement for a wide range of popular GM cars and trucks, including the Silverado, Sierra, Corvette, CTS, and Escalade. It serves as a direct replacement for multiple part numbers, including 12692067, 12676230, 12656993, 12662034, and more, ensuring broad compatibility. Please verify your part number or consult the fitment list to confirm this is the correct part for your application.
Frequently Asked Questions
Do I need to send you my old ECM?
No, there is no core charge or need to send us your original module. We program a replacement unit and ship it directly to you, saving you time and vehicle downtime.
What is VIN programming?
VIN programming is the process of loading your vehicle’s unique 17-digit Vehicle Identification Number and its associated factory software onto the ECM. This ensures the module works correctly with your specific engine, transmission, and options, and allows it to communicate with other computers in the vehicle.
Is any additional programming required after installation?
In most cases, this ECM is a plug-and-play solution. However, some GM vehicles may require a simple “Security Relearn” or “Crankshaft Variation Relearn” procedure after installation. These procedures can typically be performed without special tools and instructions can be easily found online or in a service manual.
How do I provide my VIN?
After you complete your purchase, please send us a message with your 17-digit VIN. We cannot program and ship your module until we receive this information. You can typically find your VIN on your driver’s side dashboard (visible through the windshield) or on the driver’s door jamb sticker.
Will this fix my vehicle’s problem?
This programmed ECM will correct any issues directly caused by a faulty original module. While the symptoms listed are common for ECM failure, we always recommend a proper diagnosis by a qualified technician to confirm the ECM is the root cause before ordering.