Restore Peak Performance to Your GM 3.6L Vehicle
Is your 2009 Saturn Outlook, GMC Acadia, or other compatible GM vehicle suffering from perplexing engine issues? Unexplained stalling, rough idling, a persistent check engine light, or a sudden drop in fuel economy can often be traced back to a failing Engine Control Module (ECM). This component is the brain of your engine, and when it falters, the entire system’s performance is compromised. This replacement Engine Control Module, part number 12605672, is the definitive solution to get your vehicle running reliably again.
Unlike generic modules that require expensive dealership programming, this ECM arrives at your door ready for installation. We professionally program the unit with the latest GM-certified software updates specifically for your vehicle’s Vehicle Identification Number (VIN). This ensures seamless communication between all your vehicle’s systems and restores the precise engine management parameters intended by the factory for optimal power, efficiency, and emissions control.
From the Diagnostic Bay
We had a 2009 GMC Acadia come into the shop with a laundry list of seemingly unrelated trouble codes—O2 sensor faults, random misfires, and even a transmission communication error. The owner had already replaced multiple sensors with no success. After hours of chasing wires, we focused on the ECM. Once we installed a properly programmed module, every single code vanished and the engine ran perfectly. It’s a classic case where the central processor was the true root cause, creating phantom issues across the vehicle. A new, correctly programmed ECM solved everything in one step.
Is Your Engine Control Module Failing?
A faulty ECM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following symptoms, it’s a strong indicator that your engine’s computer may need replacement:
- ✔ Check Engine Light: The light is on, and you may have codes pointing to multiple, unrelated sensor failures (e.g., P0606 – ECM Processor Fault).
- ✔ Engine Stalling or Misfiring: The engine may stall for no reason, run rough, or misfire, especially under load.
- ✔ No-Start Condition: The engine cranks but refuses to start, despite having fuel and spark.
- ✔ Poor Fuel Economy: A sudden and significant decrease in your vehicle’s MPG.
- ✔ Shifting Problems: In some cases, a failing ECM can cause harsh or erratic automatic transmission shifting.
- ✔ Loss of Power: The vehicle feels sluggish and lacks the acceleration it once had.
Why Choose Our Programmed 2009 Outlook ECM?
This isn’t just a replacement part; it’s a comprehensive solution. By providing us with your VIN during checkout, you ensure that the 2009 Outlook ECM you receive is a perfect match for your vehicle’s specific configuration. This plug-and-play approach eliminates the need for additional programming tools or costly trips to a mechanic for software flashing. We handle the complex part so you can focus on the straightforward installation.
This module is a direct replacement for a range of original equipment part numbers, including: 12623325, 12628387, 12605672, 12630594, and 19300016. It is built to meet or exceed OEM specifications, ensuring long-lasting durability and reliable performance.
Guaranteed Fitment
This Engine Control Module is confirmed to fit the following vehicles:
- 2009 GMC Acadia (located behind fan shroud)
- 2009 Saturn Outlook (located behind fan shroud)
- 2009 Buick Enclave (located behind fan shroud)
- 2009 Chevrolet Traverse (located behind fan shroud)
- 2008-2009 Cadillac CTS (3.6L, VIN V – 8th digit, located in RH front engine compartment)
- 2008-2009 Cadillac STS (3.6L, located in RH engine compartment)
Please verify your part number and vehicle fitment before ordering. Supplying your VIN is mandatory for us to provide the correct programming for your vehicle.
Frequently Asked Questions
Do I need to do any programming after I receive this ECM?
No. We program the module to the VIN you provide before shipping. In most cases, it is a direct installation. However, some vehicles may require a simple security relearn procedure (often called a Passlock or anti-theft relearn), which can typically be done without special tools. Instructions are widely available online for this process.
Why do you need my VIN?
Your vehicle’s VIN (Vehicle Identification Number) allows us to access the exact factory software and calibration files for your specific engine, transmission, and options. This ensures the 2009 Outlook ECM works perfectly and communicates correctly with all other modules in your car.
Is this a new or used part?
This is a high-quality, inspected, and tested replacement part that has been prepared to provide reliable service. It is programmed with the latest software to ensure it functions as intended by the manufacturer.
Where is the ECM located on my 2009 Outlook?
On the 2009 Saturn Outlook, as well as the Acadia, Enclave, and Traverse, the ECM is typically located behind the engine’s cooling fan shroud. On the Cadillac CTS and STS, it is found in the engine compartment on the right-hand (passenger) side.
Will this fix my check engine light?
If the check engine light and associated symptoms are caused by a faulty ECM, then this part will resolve the issue. It is crucial to have your vehicle properly diagnosed to confirm the ECM is the point of failure before ordering.