Restore Your Vehicle’s Core Performance and Reliability
Is your 2010-2011 GMC Acadia, Enclave, or Traverse suffering from frustrating issues like intermittent stalling, a persistent Check Engine Light, or a sudden drop in fuel economy? These are classic signs of a failing Engine Control Module (ECM), the computer that serves as your vehicle’s brain. A faulty ECM can disrupt everything from ignition timing to fuel mixture, leading to poor performance and potential no-start situations. This replacement ECM is your direct, reliable solution to get your vehicle running smoothly again.
We take the guesswork and high dealership costs out of the equation. Unlike a generic part from a big box store, this ECM is meticulously programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. This ensures it’s loaded with the newest, most stable software updates from GM, tailored perfectly for your engine and transmission. The result is restored performance, proper emissions compliance, and peace of mind. Simply provide your VIN at checkout, and we’ll handle the critical programming for you.
Is Your Vehicle Showing These Symptoms?
A failing ECM can manifest in various ways. Over my 20+ years in diagnostics, I’ve seen these modules cause some of the most confusing symptoms. If you’re experiencing any of the following, a faulty ECM is a very likely culprit:
- âś” Persistent Check Engine Light (CEL) with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault).
- âś” The engine cranks but refuses to start.
- âś” Unexplained stalling, especially when coming to a stop or at idle.
- âś” Noticeable decrease in fuel efficiency.
- âś” Rough or erratic idling and poor engine performance.
- âś” Failure to pass state emissions testing.
- âś” Communication errors with other vehicle modules (U-codes).
A Technician’s Notebook
I remember a 2011 Buick Enclave—which shares the same platform and 2010-2011 Acadia ECM—that came into my bay with a maddeningly intermittent stalling problem. The owner had already replaced the fuel pump and a few sensors with no luck. The scanner showed no hard codes, just a history of random communication faults. After monitoring live data, I noticed the short-term fuel trim values would suddenly go haywire right before a stall. This pointed directly to the ECM’s processor failing under load. We installed a VIN-programmed module just like this one, and the vehicle ran perfectly. It’s a great example of how a failing ECM can mimic other component failures.
A Straightforward Guide to Installation
For most of the compatible SUVs, this is a very manageable DIY job. The ECM is typically located in an accessible spot in the engine bay. Follow these general steps for a successful replacement.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to ensure all modules have powered down completely.
- Locate the Module: On the Acadia, Enclave, Traverse, and Outlook, the ECM is found mounted behind the engine’s cooling fan shroud. It’s a silver box with large electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harness connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old ECM from its mounting bracket.
- Install the New ECM: Mount your new, pre-programmed ECM in the same location. Securely reconnect the electrical harnesses, ensuring they click into place.
- Final Step: Reconnect the negative battery terminal. The vehicle may require a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Your vehicle’s service manual can provide specific details if needed.
Important Note for Camaro & LaCrosse Owners: For these specific models, the factory anti-theft (immobilizer) system is deeply integrated into the ECM. To provide you with a true plug-and-play unit, 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 shipping instructions after your purchase.
Will This Fit My Vehicle?
This ECM is guaranteed to be compatible with the following vehicles equipped with the 3.6L engine. It directly interchanges with part numbers 19300015, 19300014, 12617230, 12636355, and 12635019.
- 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 Buick Enclave
- 2010-2011 GMC Acadia
- 2010 Saturn Outlook
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you using your VIN and the latest GM software. It will arrive ready to install. For Camaro and LaCrosse models, we will contact you about transferring immobilizer data from your old unit.
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 a small plate on the driver’s side of the dashboard, visible through the windshield.
What if my original part number is slightly different?
This module is a direct replacement for several part numbers, including 19300015, 19300014, 12617230, and 12635019. As long as your vehicle is on the compatibility list, this part will work correctly once programmed to your VIN.
How difficult is the installation?
For most compatible vehicles like the Acadia, it’s a straightforward process requiring basic hand tools. The module is typically easy to access in the engine bay. The most important part is disconnecting the battery first.
Will this fix my car’s problem for sure?
This part corrects issues caused by a faulty ECM. While the symptoms listed are very common for ECM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the ECM is the root cause before ordering.