Restore Peak Performance to Your Vehicle
Is your 2010-2011 SAAB 9-5, or another compatible GM vehicle, suffering from perplexing issues like a persistent check engine light, poor fuel economy, stalling, or a no-start condition? These are classic signs that the brain of your engine, the Engine Control Module (ECM), has failed. The ECM is the central command center, managing everything from fuel injection and ignition timing to transmission shifts and emissions. When it falters, the entire vehicle’s performance and reliability are compromised. This replacement Engine Control Module, part number 12651993, is the definitive solution to restore your vehicle’s original function and driving characteristics.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) with communication-related trouble codes (U-codes).
- ✔ Unexplained drop in fuel mileage.
- ✔ Engine stumbling, misfiring, or stalling unexpectedly.
- ✔ Complete no-start or intermittent starting problems.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Performance issues like hesitation or lack of power.
- ✔ Problems with other electronic systems that communicate with the ECM.
From the Diagnostic Bay
We had a 2011 Buick LaCrosse (which uses this exact same ECM) come into the shop with a ghost problem that had stumped two other technicians. The car would randomly misfire and the traction control light would flicker. The owner had already replaced spark plugs and ignition coils with no success. After hooking up our professional scan tool, we noticed intermittent data loss from the ECM. All power and ground circuits to the module tested perfectly. We suspected an internal failure in the module itself. After installing one of our VIN-programmed ECMs, all the random misfires and warning lights vanished. The car ran perfectly. It’s a powerful reminder that the ECM can cause a wide range of confusing symptoms that don’t always point directly to the module itself.
The Definitive Solution: A Programmed SAAB 9-5 Engine Control Module
Don’t settle for a generic, unprogrammed module that requires an expensive trip to the dealership. This unit is a complete, ready-to-install solution. When you place your order, you provide us with your vehicle’s VIN. Our technicians then flash the module with the latest, most stable software updates directly from GM, ensuring it is perfectly matched to your vehicle’s specific configuration. This critical programming step ensures seamless communication with all other modules on your vehicle, eliminating compatibility issues and ensuring a smooth, plug-and-play installation process.
Why VIN Programming is Essential
Modern vehicles are complex networks of computers. The ECM must be programmed with the correct software for your specific engine, transmission, and options package. An incorrectly programmed module can lead to a no-start condition, incorrect transmission operation, or persistent error codes. Our VIN-programming service takes all the guesswork out of the repair, providing you with a part that is tailored specifically for your car, just like one from the original factory.
Broad Compatibility Across GM Platforms
While this is a perfect fit for the 2010-2011 SAAB 9-5, this versatile E39-series ECM was used in a wide variety of General Motors vehicles. This part is a direct replacement for multiple part numbers, including 12616889, 12630908, 12637106, 12642665, and 12650256. It is compatible with models such as:
- Buick Allure & LaCrosse
- Cadillac CTS & SRX
- Chevrolet Camaro, Captiva Sport, Equinox, Impala & Orlando
- GMC Terrain
Please verify your original part number or consult the detailed fitment list to ensure this is the correct part for your specific vehicle and options.
Frequently Asked Questions
Do I need to take this ECM to a dealer for programming?
No. We handle the programming for you before we ship the part. Simply provide us with your vehicle’s VIN during checkout, and the module will arrive ready for installation with the latest GM software.
Is the installation process difficult?
Installation is straightforward for anyone with basic mechanical skills. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module to swap in the new one. In some GM vehicles, a simple security relearn procedure may be required after installation, which typically involves turning the key in the ignition in a specific sequence. We can provide instructions for this.
How do I provide my VIN?
After you complete your purchase, you will receive an email with instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship your module until we receive this information.
My original part number is different. Will this still work?
This module is a direct replacement for several part numbers, including 12616889, 12630908, 12637106, 12642665, and 12650256. If your original part number is on this list, this module will function correctly in your vehicle once programmed to your VIN.
Will this fix my car’s specific problem?
If your vehicle’s issues have been correctly diagnosed as a faulty ECM, then this part is the solution. However, many symptoms of a bad ECM can also be caused by wiring, sensor, or other module failures. Professional diagnosis is always recommended to ensure you are purchasing the correct part for your repair.