Is Your 2009 Enclave Running Rough, Stalling, or Showing a Check Engine Light?
If you’re dealing with frustrating engine problems in your 2009 Buick Enclave, the Engine Control Module (ECM) is often the culprit. As a technician with over two decades of experience under the hood, I’ve seen firsthand how a failing ECM can turn a reliable vehicle into a source of constant headaches. You might be experiencing symptoms like a rough idle, unexpected stalling at stoplights, poor acceleration, decreased fuel economy, or a check engine light that just won’t go away, no matter what you try.
A Real-World Story from the Shop
“A customer’s 2009 Enclave came in last week with these exact symptoms. It would intermittently refuse to start, and when it did run, the transmission shifted harshly. The owner had already replaced spark plugs and a few sensors with no luck. After connecting my scan tool, I found multiple communication loss codes (U-codes) pointing to the ECM. The module, located behind the fan shroud, had been subjected to years of intense heat cycles, which is a common failure point I’ve diagnosed on hundreds of these GM Lambda platform vehicles (Enclave, Acadia, Traverse). The internal circuit boards simply can’t withstand that environment forever.”
The Brain of Your Engine, Restored
The ECM is the central computer for your engine. It controls everything from fuel injection and ignition timing to emissions systems and communication with other vehicle modules. When it fails, the symptoms can be widespread and confusing. This isn’t just a simple part; it’s a critical component that requires precise data to function correctly.
This replacement Engine Control Module is the definitive solution to get your Enclave performing like new again. We take the guesswork and hassle out of the repair process. Forget about towing your vehicle to a dealership and paying high fees for programming. We handle the critical software flashing for you before the part ever leaves our facility.
The Power of VIN-Specific Programming
Simply installing a used ECM from another vehicle won’t work. It contains the other car’s data, which will conflict with your Enclave’s security system and specific options, leading to a no-start condition. Our service eliminates this problem entirely.
- ✔ Provide Your VIN: After your purchase, simply send us your vehicle’s 17-digit VIN.
- ✔ We Program It: Our experts use your VIN to flash the module with the latest, most stable software updates directly from GM. This ensures perfect compatibility.
- ✔ Install with Confidence: The module arrives at your door ready for installation. In most cases, it’s a direct-fit replacement, though some vehicles may require a simple security relearn procedure (often called a ‘key cycle relearn’), which can be done without any special tools.
Guaranteed Compatibility
This ECM is a direct replacement for several original part numbers, ensuring a perfect match for your vehicle. If your original module has any of the following numbers, this part is the correct fit for you:
- ✔ 12623325
- ✔ 12628387
- ✔ 12605672
- ✔ 12630594
- ✔ 19300016
This Part Will Fit These Makes and Models With These Options:
Please verify your vehicle is on this list to ensure proper fitment. This module is specifically for vehicles with the 3.6L engine.
- ✔ 2009 Buick ENCLAVE: Electronic Control Module; (behind fan shroud)
- ✔ 2009 GMC ACADIA: Electronic Control Module; (behind fan shroud)
- ✔ 2009 Chevrolet TRAVERSE: Electronic Control Module; (behind fan shroud)
- ✔ 2009 Saturn OUTLOOK: Electronic Control Module; (behind fan shroud)
- ✔ 2009 Cadillac CTS: Electronic Control Module; (RH front engine compartment), 3.6L, VIN V (8th digit)
- ✔ 2009 Cadillac STS: Electronic Control Module; (RH engine), (3.6L)
- ✔ 2008 Cadillac CTS: Electronic Control Module; (RH front engine compartment), (3.6L), VIN V (8th digit)
- ✔ 2008 Cadillac STS: Electronic Control Module; (RH engine), 3.6L