Are mysterious electrical issues, a persistent check engine light, or poor engine performance sidelining your Cadillac or Buick? Get back on the road with confidence with this fully programmed Engine Control Module (ECM). This is a direct-fit, reliable solution designed to restore the smooth operation and dependability you expect from your vehicle, eliminating the guesswork and costly dealership visits.
Common Symptoms & Your Solution
A failing ECM can cause a wide range of frustrating problems. If you’re experiencing any of the following, this pre-programmed module is the definitive solution you need:
- Persistent Check Engine Light (CEL) with communication codes (U-codes) or sensor circuit faults (P-codes)
- Engine stalling, stumbling, or misfiring
- No-start or hard-start conditions
- Poor fuel economy and reduced engine power
- Erratic automatic transmission shifting
- Communication issues with diagnostic scan tools
This unit is the brain of your vehicle’s engine management system. By replacing your faulty original with this tested and properly programmed module, you are directly addressing the root cause of these issues. We use your vehicle’s VIN to flash the 2004-2006 Cadillac SRX ECM with the latest GM software, ensuring it works seamlessly with your specific configuration right out of the box.
Features & Benefits
- âś” VIN-Programmed for Your Vehicle: This ECM arrives ready for installation. We flash it using your VIN, which means no extra trips to the dealer for expensive programming.
- âś” Updated GM Software: Your engine will run on the latest factory calibrations, ensuring optimal performance, fuel efficiency, and emissions control.
- âś” Plug-and-Drive Installation: Once installed, you will only need to perform a simple security relearn procedure (instructions provided), getting you back on the road quickly.
- âś” Cost-Effective Repair: Get the reliability you need without the high cost of a new dealer part. This is a smart, economical solution for your vehicle.
- âś” Broad GM Compatibility: This module, identified by service number 12592124 or 19260507, is a direct replacement for a range of Cadillac and Buick models from 2004-2008.
- âś” Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
In modern vehicles like your Cadillac or Buick, the ECM is more than just an engine controller—it’s integrated with the anti-theft system (VATS/Passlock), transmission, and other modules. Simply swapping a used ECM without programming it to your car’s specific Vehicle Identification Number (VIN) will result in a no-start condition. Our VIN-flashing service ensures all these systems communicate correctly, just as the factory intended. This critical step is the key to a successful and hassle-free repair, and it’s all included with your purchase.
Don’t let a faulty computer keep your car off the road. This programmed 2004-2006 Cadillac SRX ECM is the most efficient and reliable way to solve complex engine management problems and restore your vehicle’s performance. Simply provide your VIN during checkout and let us handle the rest.
Frequently Asked Questions
Do I need to do any programming myself?
No. We pre-program the module to your vehicle’s VIN before shipping. The only step you may need to perform after installation is a simple security relearn procedure, which typically involves turning the key on for 10-15 minutes. We can provide instructions for this easy process.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship the part until we have your VIN.
Is this a new part?
No, this is a high-quality, tested, and fully functional used part that has been sourced from a salvaged vehicle. Each unit is inspected to ensure it is ready for programming and long-term service.
What if my original part number doesn’t match exactly?
GM often uses several interchangeable service numbers for the same part. This module, with a primary number of 12592124, also replaces 12581144, 12588472, and 19260507. Please check the fitment list on this page to confirm compatibility with your vehicle’s make, model, and year.
Will this fix my car’s specific problem?
This ECM is the solution for a wide variety of engine performance and electrical issues. However, we always recommend that a proper diagnosis is performed by a qualified mechanic to confirm the ECM is the point of failure. This ensures you are purchasing the correct part for your repair.
Where is this part located on my vehicle?
On the Cadillac SRX and CTS, the ECM is typically found in the engine compartment on the right-hand (passenger) side. On Buick models like the LaCrosse, Allure, and Rendezvous, it is often located under the air cleaner housing. Please consult a repair manual for your specific model for exact location and removal instructions.