Restore Peak Performance to Your 2009 Cadillac SRX
The Engine Control Module (ECM), often called the engine computer, is the brain of your vehicle’s powertrain. It meticulously manages everything from fuel injection and ignition timing to emissions systems and transmission shifting. When the ECM in your 2009 Cadillac SRX begins to fail, it can lead to a cascade of frustrating and potentially damaging issues, including poor fuel economy, erratic engine behavior, and even a no-start condition. This replacement Engine Control Module, part number 12622175, is the definitive solution to restore your vehicle’s original performance, reliability, and drivability.
Is Your Cadillac SRX Showing Signs of ECM Failure?
A faulty engine computer can manifest in various ways, often mimicking other component failures. If you’re experiencing any of the following symptoms, a failing ECM could be the culprit:
- ✔ Check Engine Light is illuminated with various, often inconsistent, trouble codes.
- ✔ Unexplained drops in fuel efficiency.
- ✔ Engine stalling, stumbling, or misfiring, especially when warm.
- ✔ Difficulty starting the vehicle or a complete no-start situation.
- ✔ Noticeable loss of power and sluggish acceleration.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication issues with diagnostic scan tools.
From the Diagnostic Bay
We had a 2009 GMC Envoy come into the shop with an intermittent stalling problem that was driving the owner crazy. It would run perfectly for days, then suddenly die at a stoplight and refuse to restart for 15-20 minutes. There were no consistent trouble codes, just a few random communication faults. After checking all the usual suspects—fuel pump, crank sensor, ignition system—we focused on the ECM. By monitoring the live data stream, we noticed the 5-volt reference signal would drop out just before it stalled. This pointed directly to an internal failure in the ECM. We installed a VIN-programmed module just like this one, performed the security relearn, and the Envoy ran flawlessly. It’s a classic example of how a failing computer can create phantom issues that are tough to diagnose without experience.
The Plug-and-Play Solution: A Pre-Programmed 2009 SRX Engine Module
Replacing an ECM isn’t just about swapping hardware. Modern vehicle computers are coded specifically to the vehicle’s Vehicle Identification Number (VIN). This programming ensures all systems, options, and security features function correctly. Our service eliminates the need for expensive dealership programming or specialized tools. When you order, simply provide us with your VIN, and we will flash this module with the latest GM-certified software for your exact vehicle configuration. This ensures a seamless installation process, getting you back on the road faster.
Guaranteed Compatibility
This module is a direct replacement for a wide range of General Motors vehicles. While this listing is focused on the 2009 SRX Engine Module, it is also compatible with the following makes and models. Please verify your specific engine and options.
- Cadillac CTS (2009): 6.2L
- Cadillac DTS (2009-2011)
- Cadillac SRX (2009): 4.6L
- Cadillac STS (2009-2010): 4.4L, 4.6L
- Cadillac XLR (2009)
- Chevrolet Colorado (2009-2012): 2.9L, 3.7L
- Chevrolet Corvette (2009): ZR1
- Chevrolet Trailblazer (2009): 6.0L
- GMC Canyon (2009-2012): 2.9L, 3.7L
- GMC Envoy (2009): 5.3L
- Hummer H3 (2009-2010)
- Buick Lucerne (2009-2011): 4.6L
- Saab 9-7x (2009)
This unit is interchangeable with the following GM service numbers: 12636659, 12639300, 1263605, 12628993, 12628911, 12625453, 12622175, 12630464, 12678512. Matching one of these numbers on your original part confirms compatibility.
Frequently Asked Questions
Do I need to have this ECM programmed by a dealer?
No. We handle the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for installation, loaded with the latest GM software for your specific vehicle.
Where can I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, the driver’s side door jamb sticker, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Is installation difficult? Will I need special tools?
Installation is generally straightforward, involving disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. While basic hand tools are usually sufficient, you may need to perform a simple security relearn procedure after installation, which can typically be done without special tools. Instructions can be readily found online for your specific model.
Will this fix my check engine light?
If the check engine light and associated fault codes are caused by a failing ECM, this replacement part will resolve the issue. It is always recommended to have a proper diagnosis performed to confirm the ECM is the root cause of the problem before ordering.
What if my original part number isn’t 12622175?
Please check the list of interchangeable service numbers provided in the description. If your original module’s part number is on that list, this unit is a compatible replacement for your vehicle.