End Your Engine Troubles and Get Back on the Road
Is your Cadillac CTS, SRX, or Buick LaCrosse suffering from erratic engine behavior, a persistent check engine light, or frustrating no-start conditions? A failing Engine Control Module (ECM) is often the hidden culprit, disrupting performance and leaving you with an unreliable vehicle. This pre-programmed ECM is your direct, dealership-alternative solution to restore your car’s original performance and your driving confidence.
Common Symptoms & Your Direct Solution
If you’re experiencing issues like stalling at intersections, rough idling, poor acceleration, or a sudden drop in fuel economy, your ECM may be at fault. Diagnostic Trouble Codes (DTCs) such as P0601, P0602, P0603, P0604, P0605, or P0606 all point to internal module failure. This unit is the definitive fix. We take a quality, inspected ECM and flash it with the latest official GM software, specifically matched to your vehicle’s unique VIN. This ensures that when you receive your 2004-2007 Cadillac CTS ECM, it’s ready for a straightforward installation, solving the problem without the need for expensive dealer-only tools.
Features & Benefits
- ✔ Plug & Play Installation: This module arrives programmed to your vehicle’s specific VIN. This eliminates the need for costly dealership programming or specialized scan tools, saving you time and money.
- ✔ Latest GM Software: We flash the unit with the most current GM updates available, ensuring optimal engine performance, correct transmission shifting, and proper emissions control.
- ✔ Cost-Effective Repair: Get your vehicle running right without the high price tag of a brand-new computer from the manufacturer. This is a smart, reliable solution for your vehicle.
- ✔ Guaranteed Compatibility: By programming to your VIN, we ensure this module is a perfect electronic match for your vehicle’s factory options and systems, from the engine to the anti-theft system.
- ✔ One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty, giving you complete confidence in your purchase.
An Expert’s Note on VIN Programming: We often hear from customers who first tried a generic, non-programmed module from a salvage yard. They almost always run into issues—the car won’t start due to the security system, the transmission shifts harshly, or new, unrelated warning lights appear. That’s because the ECM is the brain of your car; it must match the body. Our VIN programming service isn’t just a feature, it’s the most critical step to ensure a successful repair. By matching the software to your car’s exact build, we make sure this 2004-2007 Cadillac CTS ECM integrates seamlessly, just like the original one did.
Frequently Asked Questions
Do I need to do any programming myself?
No. This ECM arrives fully programmed to the VIN you provide. The process is designed to be plug-and-play. In some cases, a simple security relearn procedure, which involves cycling the key in the ignition, may be required. We provide easy-to-follow instructions for this.
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically find this on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this a new part?
No, this is a high-quality, inspected, and tested used part that has been sourced from a salvaged vehicle. It is then professionally programmed to function as a direct replacement for your original module.
My original part number is different. Will this still work?
Yes. This module, service number 12592124, is the correct, updated replacement for several older part numbers, including 12581144, 12588472, and 19260507. As long as your vehicle is listed in the compatibility chart, this part will work when programmed to your VIN.
Will this fix my check engine light?
This ECM will resolve any check engine light and running issues directly caused by a faulty original ECM. If the light was triggered by another failing component on the vehicle (e.g., a bad oxygen sensor or ignition coil), that separate issue will still need to be addressed.
What is the next step after I install it?
Once installed, you may need to perform a simple security relearn procedure, which typically takes 10-30 minutes and does not require any special tools. After that, start the vehicle and enjoy the restored performance. We recommend clearing any old codes from the system after installation.