Is your 2010-2011 Cadillac SRX experiencing perplexing issues like an illuminated check engine light, poor acceleration, rough idling, or even a complete failure to start? These are common indicators of a failing Engine Control Module (ECM), the central computer that governs your vehicle’s engine performance and efficiency. When the ECM malfunctions, it can disrupt everything from fuel delivery to ignition timing, leaving your luxury crossover unreliable. This direct-fit replacement Engine Control Module, part number 12651993, is the ultimate solution to restore your vehicle’s power, smoothness, and dependability.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) that won’t clear
- ✔ Noticeable decrease in fuel economy
- ✔ Engine misfires, stumbles, or stalls unexpectedly
- ✔ Unstable or rough idling
- ✔ Hesitation or lack of power during acceleration
- ✔ Transmission shifting issues or harsh engagement
- ✔ Vehicle cranks but will not start
- ✔ Loss of communication with the module when using a scan tool
From the Diagnostic Bay
We worked on a 2011 GMC Terrain (which uses this exact ECM) where the owner had replaced multiple sensors trying to fix a persistent lean code and rough running condition. After confirming the sensors and wiring were good, we focused on the ECM. Live data showed the computer was commanding erratic fuel injector pulse widths. After installing one of our pre-programmed modules and performing the security relearn, the engine smoothed out instantly and the fuel trim data returned to normal. It’s a classic case of the ‘brain’ being the issue, not the ‘nerves’.
Why Choose Our Programmed 2010-2011 SRX Engine Control Module?
This isn’t just a replacement part; it’s a comprehensive, plug-and-play solution. The most critical step in replacing an ECM is the programming, which traditionally requires expensive dealership equipment. We eliminate that hassle and cost. When you order, simply provide us with your vehicle’s 17-digit VIN. Our technicians will then flash this module with the latest, most stable GM factory software specifically for your vehicle’s configuration. It arrives at your door ready for installation, saving you time and money.
This unit is a direct replacement for multiple GM part numbers, ensuring wide compatibility. It interchanges with: 12616889, 12630908, 12637106, 12642665, and 12650256. While it is a perfect fit for the 2010-2011 Cadillac SRX 3.0L, it also fits dozens of other GM vehicles, including the Chevy Camaro, Impala, Equinox, GMC Terrain, and Buick LaCrosse. Please confirm your original part number for a guaranteed match.
Simple Installation Process
Once you install your new 2010-2011 SRX Engine Control Module, you may need to perform a simple security relearn procedure. This process syncs the new computer with your vehicle’s anti-theft system and can be done in your driveway in about 30 minutes without any special tools. This typically involves a sequence of key turns, and we can provide easy-to-follow instructions.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before the part ships. Just provide your VIN at checkout, and the module will arrive flashed with the latest GM software for your specific vehicle, ready to be installed.
Where can I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) is located on a metal plate on the driver’s side of the dashboard (viewable through the windshield), on the sticker in the driver’s side door jamb, and on your vehicle registration and insurance documents.
Is any other setup required after installation?
In most cases, a security relearn (also called an anti-theft relearn) is necessary. This is a simple procedure you can do yourself to pair the new ECM to your keys and security system. It does not require a scan tool.
How can I be sure my ECM is the actual problem?
While the symptoms listed are strong indicators, the best way to confirm a faulty ECM is through professional diagnosis. A mechanic can use a high-end scan tool to check for specific ECM-related trouble codes (e.g., P0600-P0606) and rule out issues with wiring, grounds, or sensors.
Does this part fit vehicles other than the Cadillac SRX?
Yes, absolutely. This ECM is used across a wide range of GM vehicles from roughly 2010 to 2013, including models from Chevrolet, Buick, GMC, and Saab. To ensure a perfect fit, please match your original part number to 12651993 or one of the alternate numbers listed in the description.