Restore Peak Performance to Your 2010-2011 Chevrolet Equinox
Is your Chevrolet Equinox or GMC Terrain experiencing perplexing issues like a persistent check engine light, rough idling, stalling, or a complete failure to start? These are classic signs of a failing Engine Control Module (ECM), the central computer that governs your vehicle’s engine performance, fuel economy, and emissions. A faulty ECM can disrupt the complex harmony of your engine’s operations, leading to frustrating and potentially damaging driving conditions. This replacement Engine Control Module, part number 12650256, is the definitive solution to restore your vehicle’s factory performance and reliability.
This isn’t just a replacement part; it’s a fully integrated solution. We take the guesswork and high dealership costs out of the equation. Upon purchase, simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our certified technicians will then program the module with the very latest, most stable software updates directly from General Motors. This ensures that your new ECM is perfectly matched to your vehicle’s specific configuration, including its engine, transmission, and factory options. The module arrives at your door ready for installation, saving you from expensive programming fees and the hassle of towing your vehicle to a service center.
From the Diagnostic Bay
We had a 2011 Equinox come in that was driving the owner crazy. It would randomly stall at red lights and had an intermittent P0606 (ECM Processor Fault) code that two other shops couldn’t solve. They had replaced sensors and checked wiring harnesses to no avail. We suspected the ECM, but first, we did our due diligence. We load-tested the power and ground circuits to the module—they were perfect. The issue was internal to the ECM itself; heat cycles had finally caused a critical component to fail intermittently. We installed one of our VIN-programmed modules, performed the quick 10-minute security relearn, and the Equinox ran like it just rolled off the assembly line. The owner was thrilled to have their reliable daily driver back without spending a fortune at the dealer.
Is Your 2010-2011 Equinox Engine Control Module Failing?
A failing ECM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following symptoms, a faulty engine computer could be the culprit. Proper diagnosis is key, but these are strong indicators that your module needs attention.
- ✔ Persistent Check Engine Light (CEL) with various trouble codes, especially those related to internal processor errors (e.g., P0601-P0606).
- ✔ Engine stalling or shutting off unexpectedly while driving or idling.
- ✔ Difficulty starting the engine or a complete no-start condition, even with a good battery and starter.
- ✔ Noticeable decrease in fuel economy and overall engine performance.
- ✔ Rough or erratic engine idle.
- ✔ Hesitation or stumbling during acceleration.
- ✔ Automatic transmission shifting harshly or at the wrong times.
- ✔ Communication errors with diagnostic scan tools.
The VIN Programming Advantage
Why is VIN-specific programming so critical? The 2010-2011 Equinox Engine Control Module is not a one-size-fits-all component. It must be calibrated to your vehicle’s unique specifications to control the fuel injectors, ignition timing, transmission, and anti-theft system correctly. Our professional programming service ensures:
- Perfect Compatibility: The module is loaded with the correct software for your exact vehicle build.
- Latest GM Updates: We flash the unit with the most recent software, which often includes fixes for factory bugs, improved performance, and enhanced efficiency that your old module may have lacked.
- Simplified Installation: Your new ECM is ready to be installed right out of the box. In most cases, the only additional step is a simple security relearn procedure that you can perform yourself, without any special tools.
Guaranteed Fitment for Multiple GM Models
This ECM is a direct replacement for a wide range of General Motors vehicles, ensuring broad compatibility. Please verify your part number or contact us with your VIN to confirm fitment. This module replaces the following part numbers: 12616889, 12630908, 12637106, 12642665, 12650256, 12651993. It is a confirmed fit for the following vehicles:
- 2010-2011 Chevrolet Equinox
- 2010-2011 GMC Terrain
- 2010 Buick Allure (2.4L, 3.0L)
- 2012 Chevrolet Camaro (3.6L)
- 2012 Chevrolet Captiva Sport
- 2012 Chevrolet Impala
- 2012-2013 Chevrolet Orlando
- 2010-2012 Cadillac CTS (3.0L, 3.6L)
- 2010-2011 Cadillac SRX (3.0L)
- 2010-2011 Buick LaCrosse (2.4L, 3.0L)
- 2011 Buick Regal
- 2010-2011 Saab 9-5 (2.0L)
Frequently Asked Questions
What is VIN programming and why is it necessary?
VIN programming is the process of loading your vehicle’s specific software and calibration files onto the ECM. It’s necessary because the ECM controls everything from fuel delivery to the anti-theft system, and this data must match your car’s factory configuration to function correctly. We handle this for you before shipping.
Is this part difficult to install?
The physical installation is straightforward for a DIYer with basic tools. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. After installing the new one, you will likely need to perform a security relearn procedure, which usually takes about 10-15 minutes and involves turning the key in the ignition. Instructions are widely available online.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on the driver’s side of the dashboard, visible through the windshield.
Do I need to send my old ECM back?
This listing does not require a core return. You can keep or dispose of your old module, saving you the time and expense of return shipping.
Will this fix my specific problem?
While this ECM will resolve issues caused by a faulty module, it’s crucial to ensure your vehicle has been properly diagnosed. A failing ECM can mimic symptoms of bad sensors or wiring. We recommend a thorough diagnosis by a qualified mechanic to confirm the ECM is the point of failure.