Restore Peak Performance to Your GM Vehicle
Is your Cadillac, Buick, or Chevy running rough, stalling unexpectedly, or refusing to start? A faulty Engine Control Module (ECM) is often the culprit behind these frustrating and complex issues. As the brain of your vehicle’s engine, a failing ECM can cause a cascade of problems, from poor fuel economy to a persistent check engine light. This isn’t just an inconvenience; it’s a critical component failure that needs a reliable solution. With over 20 years of hands-on diagnostic experience, I’ve seen firsthand how a failing module can sideline a perfectly good vehicle. That’s why we offer this fully programmed, ready-to-install Engine Control Module, designed to get you back on the road with confidence.
This isn’t just a replacement part; it’s a complete solution. We take the guesswork and high costs out of the equation by programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives loaded with the latest GM factory software updates, ensuring optimal engine performance, fuel efficiency, and emissions control. For most compatible vehicles, this makes the installation a true plug-and-play process, eliminating the need for an expensive trip to the dealership for programming. Simply provide your VIN at checkout, and we handle the rest.
Is Your Vehicle Showing These Symptoms?
- ✔ Unexplained stalling or rough idling
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Check Engine Light is on with communication error codes like U0100
- ✔ Internal module failure codes such as P0601, P0606, or P062F
- ✔ Noticeable decrease in fuel mileage
- ✔ Hesitation or stumbling during acceleration
- ✔ Inconsistent or erratic automatic transmission shifting
Case Study: A Tricky Diagnosis
A few months back, a 2011 Cadillac CTS was towed into the shop. The owner had been to two other places chasing an intermittent stalling issue that never set a hard fault code. The car would run fine for days, then suddenly die at a stoplight and refuse to restart for 20 minutes. After hooking up my diagnostic scanner and monitoring live data, I noticed the ECM’s internal temperature sensor reading was spiking erratically just before the engine would cut out. On the bench, I confirmed the module had a failing processor that was sensitive to heat. We installed one of our pre-programmed modules, and the customer called a week later to say his CTS was running better than ever. This is a classic example of how a failing 2010-2011 CTS ECM can create ghost-like problems that are tough to pin down without experience.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
- ✔ Locate the ECM: On the 2010-2011 Cadillac CTS, the ECM is typically located in the engine compartment on the right-hand (passenger) side. For other models, its location may vary (e.g., behind the fan shroud on a Traverse).
- ✔ Disconnect Connectors: Carefully release the locking tabs on the electrical harness connectors and pull them straight out from the module. Do not force them.
- ✔ Remove Mounting Hardware: Unbolt the old ECM from its mounting bracket. Keep the bolts and any hardware, as you may need to reuse them.
- ✔ Install the New ECM: Mount your new, pre-programmed ECM in the same location. Reinstall the mounting bolts and tighten them securely.
- ✔ Reconnect Everything: Firmly plug the electrical connectors back into the new module until they click into place. Reconnect the negative battery terminal.
- ✔ Final Check: Turn the key to the ‘ON’ position for 10-15 seconds before starting the engine. This allows the vehicle’s systems to recognize the new module. Start the vehicle and check for proper operation.
Important Note for Camaro & LaCrosse Owners: Due to the specific anti-theft systems in the 2010-2011 Camaro and LaCrosse, a true plug-and-play installation requires us to transfer security data from your original ECM. After your purchase, we will contact you with simple instructions for sending your old module to us. This extra step ensures your new ECM will start the vehicle without any additional security relearn procedures.
Will This Fit My Vehicle?
This module is a direct-fit replacement for the following vehicles equipped with the 3.6L V6 engine. It is compatible with part numbers 19300015, 19300014, 12617230, 12636355, and 12635019.
- 2010-2011 Cadillac CTS (3.6L)
- 2010-2011 Cadillac STS (3.6L)
- 2010-2011 Buick LaCrosse (3.6L)
- 2010 Buick Allure (3.6L)
- 2010-2011 Chevrolet Camaro (3.6L)
- 2010-2011 Chevrolet Traverse
- 2010-2011 GMC Acadia
- 2010-2011 Buick Enclave
- 2010 Saturn Outlook
If you’re tired of dealing with nagging engine problems, this professionally programmed 2010-2011 CTS ECM is the most reliable and straightforward path to getting your vehicle running like new again. Order today and experience the difference.
Frequently Asked Questions
How does the VIN programming process work?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this number to access the latest official GM software for your specific model and options. We flash this software directly onto the module before shipping, so it’s ready for installation when it arrives.
Do I need to do anything after installing it?
For most vehicles listed, no. The module is pre-programmed for a plug-and-play installation. However, some vehicles may require a simple crankshaft position sensor relearn procedure, which can be done with many professional-grade scan tools. The exceptions are the Camaro and LaCrosse, which require an additional service as detailed on the product page.
Why do you need my old ECM for a Camaro or LaCrosse?
The factory anti-theft (immobilizer) system in these specific models is deeply integrated into the original ECM. To ensure your key works and the car starts without issue, we must physically extract the immobilizer data from your old module and clone it to the new one. We provide instructions for this simple process after your purchase.
Is this part the same as a PCM or ECU?
Yes. The terms Engine Control Module (ECM), Powertrain Control Module (PCM), and Engine Control Unit (ECU) are often used interchangeably. For these GM applications, this module serves as the primary computer controlling engine functions.
What if my part number isn’t an exact match?
This module is a direct replacement for several part numbers, including 19300015, 19300014, 12617230, 12636355, and 12635019. As long as your vehicle is on the compatibility list and your original part number is one of these, this module will work correctly once programmed with your VIN.