Restore Peak Performance to Your Vehicle with a VIN-Programmed ECM
Is your Cadillac SRX, Chevy Impala, or GMC Acadia running rough, showing a persistent check engine light, or refusing to start? These are classic signs of a failing Engine Control Module (ECM), the central computer of your vehicle’s powertrain. A faulty ECM can lead to a cascade of frustrating issues, from poor fuel economy and shifting problems to a complete no-start condition. This replacement Engine Control Module, part number 12651994, is the definitive solution to get your vehicle back on the road with reliability and confidence.
This isn’t just a generic, off-the-shelf part. We take the guesswork out of the repair process. Upon purchase, you will provide us with your vehicle’s Vehicle Identification Number (VIN). Our technicians will then program this module with the latest, most stable software updates directly from GM. This VIN-specific programming ensures that the ECM communicates flawlessly with all other modules in your vehicle, just as the original did from the factory. This critical step prevents compatibility issues and simplifies the installation process, often eliminating the need for expensive dealership programming.
Expert Pro Tip
Before installing your new ECM, it’s crucial to disconnect the vehicle’s battery. After installation, perform a thorough inspection of the wiring harness and connectors for any signs of corrosion, damage, or loose pins. A faulty sensor or a short in the wiring can damage a new module. Addressing the root cause of the original ECM failure will ensure the longevity of your replacement part.
Common Symptoms of a Failing GM ECM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, misfiring, or running rough.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Intermittent or complete no-start conditions.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Loss of power and poor acceleration.
Diagnosing Your 2012 SRX Engine Control Module
Confirming a bad ECM requires a systematic approach. While the symptoms listed above are strong indicators, a professional diagnostic scan is recommended. Technicians will look for specific communication-related Diagnostic Trouble Codes (DTCs), such as U-codes, which point to network issues, or P-codes that are inconsistent or don’t resolve after replacing related sensors. If your mechanic has condemned the computer, this pre-programmed 2012 SRX Engine Control Module is your most reliable and cost-effective solution. It is a direct replacement for part numbers 12651994, 12643248, 12652814, and AA69, ensuring broad compatibility across a range of GM models.
Guaranteed Fitment for Your Vehicle
This module is engineered to be a direct-fit replacement for a wide variety of General Motors vehicles. Please verify your original part number or consult the list below to ensure compatibility. Our VIN programming process tailors the software specifically for your make, model, and options package.
Compatible Models Include:
- ACADIA 2012 (behind fan shroud)
- CAMARO 2012 (3.6L)
- CAPRICE 2012-2013 (3.6L)
- CAPTIVA SPORT 2012-2013 (LH engine compartment)
- CTS 2012-2013 (3.0L, 3.6L), 2014 (Coupe & Wagon, 3.0L & 3.6L)
- ENCLAVE 2012 (behind fan shroud)
- EQUINOX 2012 (LH engine compartment)
- IMPALA 2012-2013 (air cleaner bracket), 2014-2016 (Limited, VIN W)
- LACROSSE 2012 (LH engine compartment)
- MALIBU 2013 (2.4L, LH engine compartment)
- ORLANDO 2012-2013 (LH engine compartment)
- REGAL 2012 (LH engine compartment)
- SRX 2012 (LH engine compartment)
- TERRAIN 2012 (LH engine compartment)
- TRAVERSE 2012 (behind fan shroud)
- VERANO 2012-2013 (2.4L)
Frequently Asked Questions
What is an ECM and what does it do?
The Engine Control Module (ECM) is your vehicle’s main computer. It controls critical engine functions like fuel injection, ignition timing, emissions systems, and variable valve timing to ensure optimal performance, fuel economy, and low emissions.
Is this 2012 SRX Engine Control Module ready to install?
Yes! This module is programmed to your vehicle’s specific VIN before it ships. In many cases, this allows for a simple plug-and-play installation. However, some vehicles may require a simple, key-on/key-off security relearn procedure, which can be done without any special tools.
Where do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship the part until we receive this information, as the programming is essential for the part to function correctly.
What happens if I don’t fix my faulty ECM?
Ignoring a failing ECM can lead to more severe problems, including catalytic converter damage from an incorrect air/fuel mixture, poor drivability, failing emissions tests, and eventually, the vehicle may not start at all, leaving you stranded.
How do I know if this part fits my vehicle?
The best way is to match the part number from your original ECM to one of the compatible numbers listed: 12651994, 12643248, 12652814, or AA69. You can also check the detailed fitment list on this page or contact us with your VIN for confirmation.