Restore Peak Performance to Your Vehicle’s Powertrain
If you’re dealing with frustrating and unpredictable issues like stalling, a persistent Check Engine Light, or a car that simply won’t start, 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 turn a reliable vehicle into a source of constant headaches. This isn’t just a part; it’s the central computer of your engine, and when it fails, nothing works right. This replacement 2011 Regal Engine Control Module is the definitive solution to restore your vehicle’s drivability, fuel efficiency, and reliability.
The biggest challenge with ECM replacement has always been the programming. In the past, you’d have to install the part and then have your vehicle towed to a dealership for an expensive flashing procedure. We eliminate that step entirely. Before we ship this module, our experts will program it with the latest GM-certified software, tailored specifically to your vehicle’s VIN. This ensures that the ECM communicates flawlessly with your transmission, anti-theft system, and all other onboard computers, making the installation process as simple as possible.
From the Diagnostic Bay: The Intermittent No-Start
I recently had a 2012 Chevy Impala in the shop with a maddening problem. The owner said it would randomly fail to start, with no crank and no communication with the scan tool. All the fuses and relays were good, and the battery was strong. After checking the main power and ground circuits to the ECM, I noticed that wiggling the ECM connectors would sometimes bring it back to life. This pointed to an internal failure. We installed one of these VIN-programmed modules, and the car started perfectly every time. The problem wasn’t the wiring; it was the computer itself suffering from an internal board failure, a common issue I’ve diagnosed hundreds of times.
Is Your GM Vehicle Showing These ECM Failure Signs?
- ✔ Persistent Check Engine Light (CEL) with communication-related codes (e.g., U0100, P0601, P0606).
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ Rough or erratic engine idling and stalling.
- ✔ The transmission shifts harshly or at the wrong times.
- ✔ Loss of power and poor acceleration.
- ✔ Issues with the anti-theft system preventing startup.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental contact.
- ✔ Locate the ECM: On most compatible models, the ECM is found in the engine compartment, often on the driver’s side (LH) near the air filter box or on the firewall. For the CTS, it’s on the passenger’s side (RH).
- ✔ 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 mounting hardware, as you will need it for the new module.
- ✔ Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
- ✔ Reconnect Everything: Plug the electrical connectors firmly back into the new ECM until they click into place. Reconnect the negative battery terminal.
- ✔ Perform Security Relearn (If Needed): In some cases, a simple 10-15 minute key-on security relearn procedure may be required. Instructions are readily available online for your specific model or included with your part.
Verified Vehicle Compatibility
This module is a direct-fit replacement for multiple GM vehicles and part numbers. Please verify your vehicle and original part ID from the list below to ensure proper fitment. This unit replaces part numbers: 12616889, 12630908, 12637106, 12642665, 12650256, 12651993.
- Buick Allure (2010): 2.4L & 3.0L
- Buick LaCrosse (2010-2011): 2.4L & 3.0L
- Buick Regal (2011): All options
- Cadillac CTS (2010-2012): 3.0L & 3.6L
- Cadillac SRX (2010-2011): 3.0L
- Chevrolet Camaro (2012): 3.6L
- Chevrolet Captiva Sport (2012): All options
- Chevrolet Equinox (2010-2011): All options
- Chevrolet Impala (2012): All options
- Chevrolet Orlando (2012-2013): All options
- GMC Terrain (2010-2011): All options
- Saab 9-5 (2010-2011): 2.0L
Frequently Asked Questions
Do I need to do any additional programming after installation?
No. This 2011 Regal Engine Control Module arrives pre-programmed to your vehicle’s VIN. In most cases, it is a plug-and-play installation. Some vehicles may require a simple security relearn procedure that you can do yourself in 15 minutes.
How do I provide my VIN number?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive your VIN, as the programming is specific to your car.
Is this compatible with other part numbers?
Yes, this ECM is a direct replacement for several part numbers, including 12616889, 12630908, 12642665, 12650256, and 12651993. As long as your vehicle is on the compatibility list, this module will work.
What happens if I install this without fixing the original problem?
It’s crucial to ensure the ECM is truly the faulty component. If you have an underlying issue like a shorted sensor or bad wiring, it could potentially damage the new module. We always recommend confirming the diagnosis or having a professional mechanic do so before replacement.
Will this fix my poor gas mileage?
If the poor fuel economy is caused by a faulty ECM not correctly managing the air/fuel mixture or ignition timing, then yes, this part will resolve that issue and restore factory efficiency.