Is Your Cadillac SRX Experiencing Frustrating Engine Problems?
If your 2004, 2005, or 2006 Cadillac SRX with the 3.6L engine is suffering from issues like erratic idling, stalling, a persistent Check Engine Light, or a complete no-start condition, a failing Engine Control Module (ECM) is often the culprit. The ECM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it begins to fail, it can cause a cascade of confusing and performance-robbing symptoms that can be difficult to diagnose.
The Direct Solution: A VIN-Programmed 2004-2006 SRX ECM
Don’t let a faulty computer keep your luxury SUV off the road. This is a genuine, used Engine Control Module, part number 12581144 (interchangeable with 12592124, 12588472, and 19260507), that has been meticulously inspected and is ready for installation. The most critical part of the process is our professional programming service. Before we ship the unit, we flash it with the latest official GM software updates, specifically matched to your vehicle’s unique Vehicle Identification Number (VIN). This ensures that the module communicates perfectly with your SRX’s other systems, including the ignition, transmission, and anti-theft system, for a seamless installation process.
Common Symptoms of a Failing ECM
- ✔ Persistent and illuminated Check Engine Light (CEL)
- ✔ Engine stalling or shutting off while driving
- ✔ Rough or erratic engine idle
- ✔ Noticeable decrease in fuel economy
- ✔ Vehicle cranks but refuses to start
- ✔ Transmission shifting problems or getting stuck in gear
- ✔ Unexplained error codes related to communication or sensor circuits
- ✔ Misfire codes that don’t resolve after replacing plugs or coils
Why VIN Programming is Essential
Simply swapping an ECM from another vehicle will not work. Modern GM vehicles have sophisticated anti-theft systems (Passlock/Passkey) that are tied directly to the VIN stored in the ECM. Our programming service correctly calibrates the module for your SRX’s specific engine, transmission, and options package. This vital step saves you a costly trip to the dealership and eliminates the need for expensive diagnostic tools. You receive a part that is ready to be installed and integrated into your vehicle’s electronic ecosystem.
Vehicle Fitment Information
This ECM is a direct replacement for vehicles equipped with the 3.6L V6 engine and one of the following service numbers: 12581144, 12588472, 12592124, or 19260507. While this listing is focused on the 2004-2006 SRX, it is also compatible with:
- Cadillac CTS: 2004-2007 (Base models)
- Cadillac SRX: 2004-2006 (3.6L)
- Buick Rendezvous: 2004-2006 (3.6L)
- Buick Allure: 2005-2008 (3.6L)
- Buick LaCrosse: 2005-2008 (3.6L)
Please verify the part number on your original module to ensure perfect compatibility. The ECM on the SRX is typically located in the right-hand (passenger side) front of the engine compartment.
Frequently Asked Questions
Do I need to do anything after I install this ECM?
Because this ECM is pre-programmed to your VIN, the main programming is done. However, you will likely need to perform a simple security relearn procedure, which can typically be done without special tools and involves a sequence of key turns. A Crankshaft Variation Relearn (CASE learn) may also be required with a capable scan tool to clear certain trouble codes.
How do I provide my VIN?
After completing your purchase, please send us a message with your vehicle’s 17-digit VIN. We cannot program and ship the module without this information.
Is this a new part?
No, this is a high-quality, inspected used part sourced from a salvaged vehicle. Each unit is tested to ensure it is fully functional and ready for programming and installation.
What if my original part number is slightly different?
This module is a direct replacement for service numbers 12581144, 12588472, 12592124, and 19260507. As long as your original module carries one of these numbers, this part will be compatible when programmed to your VIN.
Will this fix my car’s problem for sure?
This part will resolve issues directly caused by a faulty ECM. While the symptoms listed are common for ECM failure, we always recommend a proper diagnosis by a qualified mechanic to confirm the ECM is the root cause of your problem before ordering.