Restore Peak Performance to Your 2012 Captiva Sport
Is your 2012 Chevrolet Captiva Sport running rough, throwing confusing check engine lights, or refusing to start? These are classic signs of a failing Engine Control Module (ECM), the central computer of your vehicle. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cause a cascade of frustrating and hard-to-diagnose problems. This isn’t just a part; it’s the solution to restoring your vehicle’s drivability, fuel efficiency, and reliability.
This is a direct-fit replacement 2012 Captiva Sport Engine Control Module, but with a critical service included: we program it specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM factory software updates already installed. You can skip the expensive trip to the dealership for programming—a step that can often cost hundreds of dollars and add days to your repair time. Simply provide your VIN after purchase, and we handle the rest.
From the Diagnostic Bay
I remember a 2012 Captiva Sport that came into the shop with a list of bizarre symptoms. The owner reported intermittent stalling at stoplights, a flickering check engine light with no consistent codes, and terrible gas mileage. We checked everything—fuel pressure, spark, sensors—and it all looked fine. The scan tool would sometimes lose communication with the ECM, which was the final clue. A failing processor inside the original module was causing these ghost-like issues. We installed a VIN-programmed ECM just like this one, and it was like a new vehicle. The engine ran smoothly, the communication was stable, and the owner was thrilled to have his reliable SUV back. These modules are the definitive fix for those otherwise unexplainable electrical gremlins.
Is Your Captiva Sport Showing These Signs?
- ✔ Persistent Check Engine Light (CEL) that won’t clear.
- ✔ Vehicle cranks but refuses to start (no-start condition).
- ✔ Significant drop in fuel economy (MPG).
- ✔ Engine stalling, sputtering, or misfiring.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Loss of communication with the scan tool.
- ✔ Diagnostic Trouble Codes (DTCs) like P0601, P0606 (Internal Module Failure), or U0100 (Lost Communication with ECM).
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 the 2012 Captiva Sport, the ECM is typically found in the left-hand (driver’s side) of the engine compartment, often attached to a bracket.
- ✔ Disconnect and Remove: Carefully unplug the wiring harness connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed ECM onto the bracket and securely fasten the bolts. Reconnect the wiring harnesses, ensuring they click firmly into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal.
- ✔ Final Steps: In many cases, the vehicle will start and run perfectly. Some GM vehicles may require a simple security relearn procedure (often called a Passlock or Passkey relearn), which can be done without special tools and typically involves cycling the key in the ignition. Instructions are readily available online for this process.
Verified Vehicle Compatibility
This ECM is a direct replacement for part number 12642665 and is interchangeable with part numbers 12616889, 12630908, 12637106, 12650256, and 12651993. It is guaranteed to fit the following vehicles:
- Chevrolet Captiva Sport: 2012
- Buick Allure: 2010 (2.4L, 3.0L)
- Buick LaCrosse: 2010-2011 (2.4L, 3.0L)
- Buick Regal: 2011
- Cadillac CTS: 2010-2012 (3.0L, 3.6L)
- Cadillac SRX: 2010-2011 (3.0L)
- Chevrolet Camaro: 2012 (3.6L)
- Chevrolet Equinox: 2010-2011
- Chevrolet Impala: 2012
- Chevrolet Orlando: 2012-2013
- GMC Terrain: 2010-2011
- Saab 9-5: 2010-2011 (2.0L)
Note: Please match one of the part numbers listed to your original module to ensure perfect compatibility. This module is specifically for the 2012 Captiva Sport Engine Control Module and the other models listed.
Frequently Asked Questions
How do I provide my VIN?
After completing your purchase, simply send us a message with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive this information.
Is any additional programming required after installation?
No. We flash the module with the latest GM software for your specific VIN before shipping. In some cases, a simple security relearn procedure may be needed, which you can typically do yourself in your driveway.
What if my original part number is slightly different?
This module replaces several part numbers, including 12616889, 12630908, 12637106, 12650256, and 12651993. As long as your original module matches one of these numbers, this part will work correctly.
Where is the part number on my old ECM?
The part number is printed on a sticker on the case of your original Engine Control Module. You will need to locate and remove the module to read it.
Is this a reliable, long-term fix?
Absolutely. This is a quality-tested module programmed with stable, factory-approved software to restore your vehicle’s original performance and eliminate the issues caused by a failing computer.