Restore Peak Performance to Your GM Vehicle
If you’re dealing with frustrating and unpredictable engine problems like stalling, a persistent check engine light, or a no-start condition, a failing Engine Control Module (ECM) is often the culprit. As a technician with over two decades of experience, I’ve seen how a faulty ECM can disrupt your vehicle’s entire operation. This isn’t just an inconvenience; it’s a critical component failure. We offer a reliable and straightforward solution: a replacement ECM, part number 19300015, professionally programmed to your vehicle’s specific VIN before it ships. This ensures you get a part that works correctly right out of the box, restoring the performance and dependability you expect from your vehicle.
Common Signs of a Failing GM 3.6L ECM
A failing engine computer can manifest in numerous ways. If your vehicle is experiencing any of the following, it might be time to replace your 2010 Allure ECM or the corresponding module in your compatible GM vehicle. Look out for:
- ✔ Unexplained check engine light with codes like P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault).
- ✔ Engine stalling, sputtering, or misfiring for no apparent reason.
- ✔ Complete no-start or intermittent starting issues where the engine cranks but won’t fire.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication loss codes (U-codes) with other modules on the vehicle.
- ✔ Fans running constantly, even when the engine is cold.
From the Diagnostic Bay
I remember a 2011 GMC Acadia that came into my shop with an intermittent stalling problem that had two other shops stumped. The owner had already replaced the fuel pump and a few sensors with no luck. The vehicle would run fine for days, then suddenly die at a stoplight. When I connected my scan tool, I found several intermittent communication loss codes (U0100) stored alongside a history code for an internal processor fault (P0606). Instead of just throwing more parts at it, we monitored the ECM’s data stream. We found that the module’s internal voltage would drop sporadically just before a stall. This confirmed our suspicion: the ECM itself was failing internally. We installed a VIN-programmed module, just like this one, and the problem was solved permanently. It’s a classic example of how the ECM, the brain of the vehicle, can cause symptoms that mimic other failures.
A Straightforward Guide to Installation
Installing your replacement ECM is a manageable job for a confident DIYer or any professional mechanic. Our VIN programming service makes the process much simpler, but always follow proper procedures.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes to allow all modules to power down completely.
- Locate the ECM: On these GM models, the ECM is typically found in the engine compartment. Common locations include the LH (driver’s side) engine compartment (LaCrosse, Allure), behind the fan shroud (Traverse, Enclave, Acadia, Outlook), or on the RH (passenger’s side) front of the engine compartment (CTS, STS).
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have locking tabs that need to be released. Once disconnected, unbolt the module from its mounting bracket and remove it.
- Install the New Module: Mount the new ECM securely in place. Reconnect the electrical connectors, ensuring they click and lock firmly. A poor connection can cause a host of new problems.
- Reconnect Power: Reattach the negative battery terminal.
- Final Steps: Start the vehicle. It may run slightly rough for the first few minutes as it completes its internal checks. A throttle body relearn or CASE (Crankshaft Angle Sensor Error) relearn procedure may be required with a capable scan tool for optimal performance, but the vehicle will be operational.
Special Note for Chevrolet Camaro and Buick LaCrosse Owners
Due to the specific anti-theft (immobilizer) systems in the 2010-2011 Camaro and LaCrosse, a simple VIN flash is not enough for a plug-and-play installation. To provide you with a module that works without additional security programming, we require you to send us your original ECM. We will read the unique immobilizer data from your old module and write it to your new one. We will contact you with shipping instructions after your purchase to coordinate this simple process.
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 V6 engine:
- 2010-2011 Buick LaCrosse
- 2010-2011 Chevrolet Traverse
- 2010-2011 Cadillac CTS
- 2010-2011 Chevrolet Camaro
- 2010 Saturn Outlook
- 2010 Buick Allure
- 2010-2011 Buick Enclave
- 2010-2011 GMC Acadia
- 2010-2011 Cadillac STS
Frequently Asked Questions
What happens after I place my order?
After you purchase, you will need to provide us with your vehicle’s 17-digit VIN. We use this to program the ECM with the latest GM-certified software specifically for your car before we ship it to you.
Is this module truly plug-and-play?
For most listed vehicles, yes. It arrives ready for installation. For the Chevrolet Camaro and Buick LaCrosse, we must transfer immobilizer data from your old unit to make it plug-and-play. We will contact you to arrange this.
Will this fix my check engine light?
This ECM will resolve any diagnostic trouble codes directly caused by a faulty module, such as internal processor errors (P0601, P0606). It will not fix issues related to other failed parts on your vehicle, like a bad oxygen sensor or a faulty catalytic converter.
Where is the ECM on my vehicle?
Location varies by model. It’s often behind the fan shroud (Traverse, Acadia), in the driver’s side engine compartment (LaCrosse, Allure), or the passenger’s side engine compartment (CTS, STS).
Does this part include the newest software?
Absolutely. We program every module with the most current software updates available from GM. This helps resolve many known factory drivability issues.
What if I have a Camaro or LaCrosse?
No problem. After your purchase, we will reach out with simple instructions for sending your original ECM to us. We will clone the necessary security information to the new module and ship it back to you, ready for installation.