Is Your GM 3.6L Vehicle Running Rough?
The Engine Control Module, or ECM, is the central computer of your vehicle’s engine management system. It meticulously controls critical functions like fuel injection, ignition timing, and emissions systems to ensure optimal performance, fuel efficiency, and reliability. When the ECM begins to fail in your 2010-2011 Buick Enclave, GMC Acadia, or other compatible GM vehicle, it can lead to a cascade of frustrating and potentially damaging issues. From a persistent check engine light to a vehicle that won’t start at all, a faulty ECM can bring your daily drive to a halt. This replacement ECM, part number 12617230, is the definitive solution to restore your vehicle’s factory performance and peace of mind.
Symptoms of a Failing Engine Control Module
A failing ECM can manifest in various ways, often mimicking other component failures. If you’re experiencing any of the following issues, your engine computer may be the culprit:
- ✔ Persistent Check Engine Light: The light stays on even after addressing other potential issues, often with communication-related error codes (U-codes).
- ✔ Engine Performance Problems: Noticeable loss of power, hesitation during acceleration, rough idling, or frequent stalling.
- ✔ Reduced Fuel Economy: A sudden and unexplained drop in your vehicle’s MPG is a common sign the ECM isn’t managing the fuel system correctly.
- ✔ Intermittent or No-Start Conditions: The engine cranks but refuses to start, or starts unreliably.
- ✔ Erratic Transmission Behavior: The ECM communicates with the Transmission Control Module (TCM), and a fault can cause harsh shifting or gear selection problems.
- ✔ Failure to Communicate: A diagnostic scan tool is unable to establish a connection with the ECM.
From the Diagnostic Bay
We once had a 2011 GMC Acadia come in with a no-start condition that had stumped two other shops. The owner had already replaced the battery, starter, and fuel pump. When we connected our scanner, we couldn’t communicate with the engine computer at all. After verifying power and ground to the module, we confirmed the ECM itself had failed internally. Installing a correctly programmed ECM like this one had the vehicle starting perfectly and back on the road the same day. It’s a reminder that the ECM is the true brain of the operation.
The Plug-and-Play Solution for Your 2010-2011 Enclave ECM
Don’t let a complex computer repair keep you off the road. We make the process simple. This isn’t just a part in a box; it’s a comprehensive service. When you purchase this 2010-2011 Enclave ECM, we use your vehicle’s unique Vehicle Identification Number (VIN) to program the module with the latest, most stable software updates directly from General Motors. This critical step ensures that the computer is perfectly matched to your vehicle’s specific configuration, options, and emissions standards, eliminating the need for an expensive trip to the dealership for programming.
Installation Process:
- Place your order for the ECM.
- Reply to our follow-up email with your vehicle’s VIN.
- We program the module with the latest GM software specific to your VIN.
- We ship the ready-to-install module directly to you.
- Simply disconnect the battery, swap the old module with the new one, and reconnect the battery. In most cases, the vehicle will start and run correctly.
Please Note: For 2010-2011 Chevrolet Camaro and Buick Lacrosse models, an additional step is required to ensure a true plug-and-play experience. Due to the specific anti-theft (immobilizer) systems in these vehicles, we will need you to send us your original ECM. We will professionally extract the immobilizer data and transfer it to your new module. We will contact you with simple instructions for this process after your purchase.
Guaranteed Fitment
This module is a direct replacement for part number 12617230 and is also compatible with the following interchangeable part numbers: 19300015, 19300014, 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 (3.6L)
- 2010 Buick Allure (3.6L)
- 2010-2011 Cadillac CTS (3.6L)
- 2010-2011 Cadillac STS (3.6L)
- 2010-2011 Chevrolet Camaro (3.6L)
- 2010-2011 Chevrolet Traverse
- 2010-2011 GMC Acadia
- 2010 Saturn Outlook
Choosing our pre-programmed 2010-2011 Enclave ECM is the most efficient and reliable way to solve complex engine management problems and restore your vehicle to its peak operational state.
Frequently Asked Questions
Do I need to have this ECM programmed by a dealer?
No. We handle all the programming for you before shipment. We use your VIN to load the latest GM software, so the module arrives ready for installation in your vehicle.
Where do I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on a placard on the driver’s side dashboard visible through the windshield.
Why do you need my old ECM for a Camaro or Lacrosse?
These specific models have unique anti-theft information stored in the original ECM. To make the replacement truly plug-and-play and avoid security relearn procedures, we transfer this data from your old module to the new one. We will provide clear instructions after your purchase.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM, then yes, this part will resolve the issue. However, it’s always recommended to have the codes read by a diagnostic scanner to ensure the ECM is the root cause of the problem.
Is any other setup required after installation?
In some cases, a Crankshaft Position Sensor Relearn (also known as a CASE relearn) may be needed to clear a P1336 code. This is a simple procedure that can be performed with most professional-grade scan tools and does not affect the vehicle’s ability to drive.