Restore Your Vehicle’s Brain and Get Back on the Road with Confidence
Dealing with erratic engine behavior, a persistent Check Engine Light, or a vehicle that refuses to start can be incredibly frustrating. These aren’t just annoyances; they’re often symptoms of a failing Engine Control Module (ECM)—the central computer of your vehicle. This replacement ECM, part number 19300015, is the definitive solution for your 2010-2011 Buick Enclave and other compatible GM models. It arrives at your door pre-programmed with the latest official GM software, tailored specifically to your vehicle’s VIN. This eliminates the need for expensive dealership programming, saving you time and money.
As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can mimic a dozen other problems, leading to wasted time and money on incorrect diagnoses. A failing module can disrupt everything from fuel delivery and ignition timing to transmission shifting and emissions control. By replacing your old, failing unit with this fully tested and properly programmed module, you are restoring the core of your vehicle’s operational command system. This isn’t just a part replacement; it’s a restoration of your vehicle’s reliability and performance.
A Technician’s Notebook: The Intermittent Stall That Wasn’t a Fuel Pump
A 2011 Acadia came into my bay with a complaint that stumped two other shops: it would stall randomly at stoplights, but only when the engine was fully warm. There were no consistent trouble codes, just a history of random communication errors. The owner had already replaced the fuel pump and a crankshaft sensor to no avail. Instead of throwing more parts at it, I monitored the ECM’s live data stream on a long test drive. I noticed that just before a stall, the 5-volt reference signal supplied by the ECM to various sensors would flicker and drop. This tiny, almost imperceptible dip was the ECM itself failing under thermal stress. We installed a pre-programmed ECM, and the problem was solved instantly. It’s a classic case where the root cause is the main computer, not the components it controls.
Common Signs of a Failing Engine Control Module
- ✔ Unexplained Check Engine Light illumination, often with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault).
- ✔ Engine performance issues such as stalling, rough idling, hesitation, or misfires.
- ✔ The vehicle cranks but refuses to start (no-start condition).
- ✔ Noticeable decrease in fuel economy.
- ✔ Automatic transmission shifting erratically or harshly.
- ✔ Communication errors with diagnostic scan tools.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to ensure all systems are powered down.
- ✔ Locate the ECM: On the Enclave, Acadia, Outlook, and Traverse, the ECM is typically located behind the engine’s cooling fan shroud. On other models like the CTS or LaCrosse, check the engine compartment (often on the driver’s or passenger’s side).
- ✔ Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and pull them straight out from the module. Do not force them.
- ✔ Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will need it for the new module.
- ✔ Install the New ECM: Mount the new module securely onto the bracket and tighten the bolts. Reconnect the electrical connectors, ensuring they click firmly into place.
- ✔ Reconnect Battery: Reattach the negative battery terminal. The vehicle is now ready to start. For most models, no further action is required.
Important Programming Information
To ensure a seamless installation, we program this 2010-2011 Enclave ECM with the latest software using the Vehicle Identification Number (VIN) you provide at checkout. This synchronizes the module with your vehicle’s specific configuration. Please Note for Camaro & LaCrosse Owners: For these specific vehicles, a simple VIN flash is not enough due to their immobilizer systems. To make the module truly plug-and-play, you will need to send us your original ECM. We will professionally clone the security information to the new module, ensuring it works perfectly without any additional security relearn procedures. We will contact you with shipping instructions after your purchase.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19300015, 19300014, 12617230, 12636355, and 12635019. It is guaranteed to fit the following vehicles equipped with the 3.6L engine:
- ✔ 2010-2011 Buick Enclave
- ✔ 2010-2011 Buick LaCrosse (Requires cloning of original module)
- ✔ 2010 Buick Allure
- ✔ 2010-2011 Cadillac CTS
- ✔ 2010-2011 Cadillac STS
- ✔ 2010-2011 Chevrolet Camaro (Requires cloning of original module)
- ✔ 2010-2011 Chevrolet Traverse
- ✔ 2010-2011 GMC Acadia
- ✔ 2010 Saturn Outlook
Frequently Asked Questions
Do I need to do any programming myself?
No. For most vehicles listed, this ECM arrives fully programmed to your VIN and is ready for installation. For the Camaro and LaCrosse, you must send us your old module for immobilizer cloning to achieve a plug-and-play state.
Where do I provide my VIN?
Please enter your 17-digit VIN in the designated box during checkout or send it to us in a message after your purchase. We cannot ship the module until we have your VIN to program it.
What if I have a Camaro or LaCrosse?
After you place your order, we will contact you with instructions on how to send your original ECM to us. This cloning process is essential for the vehicle to start and run correctly and is included in the purchase price.
Is this a new or used part?
This is a high-quality, fully tested replacement part that has been inspected and certified for performance and reliability, then loaded with new GM-certified software specific to your vehicle.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the ECM (like codes P0601-P0606), then yes, this part will resolve the issue. It’s crucial to have your vehicle properly diagnosed to ensure the ECM is the source of the problem.