Is Your Vehicle Experiencing Mysterious Electrical or Performance Problems?
The Engine Control Module (ECM), often called the engine’s brain, is the central command center for your vehicle’s performance, fuel economy, and emissions. When it begins to fail, it can cause a wide range of frustrating and difficult-to-diagnose issues. If your Cadillac CTS, SRX, or Buick Allure, LaCrosse, or Rendezvous is stalling, running rough, or displaying a persistent check engine light, a faulty ECM could be the culprit. This replacement ECM, part number 12592124, is the reliable and cost-effective solution to restore your vehicle’s factory performance and drivability.
Expert Pro Tip
Expert Pro Tip
Before condemning your ECM, always perform a thorough check of your vehicle’s battery, alternator, and main ground connections. A weak or unstable power supply from a failing battery or poor ground can mimic many common ECM failure symptoms. Ensuring the electrical system is healthy can save you from a misdiagnosis.
Your Direct Solution: A Programmed 2004-2007 CTS ECM
Finding the right replacement part is only half the battle. A new ECM from a dealership requires expensive programming and calibration once installed. We eliminate that step entirely. This is a quality, tested used ECM that we professionally program to your vehicle’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. We install the latest, most stable software updates from GM, ensuring optimal performance and compatibility. This means you receive a part that is ready for installation right out of the box, getting you back on the road faster and with less hassle.
Common Symptoms of a Failing ECM:
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Complete no-start or intermittent starting condition.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Erratic or harsh transmission shifting.
- ✔ Communication errors when using a diagnostic scan tool.
- ✔ Misfire codes that don’t resolve with new spark plugs or coils.
Guaranteed Compatibility and Fitment
This module is a direct replacement for several service numbers, including 12581144, 12588472, 12592124, and 19260507. It is guaranteed to fit and function correctly in the following vehicles:
- Cadillac CTS: 2004-2007 (Base models)
- Cadillac SRX: 2004-2006 (3.6L engine)
- Buick Allure: 2005-2008 (3.6L engine)
- Buick LaCrosse: 2005-2008 (3.6L engine)
- Buick Rendezvous: 2004-2006 (3.6L engine)
To ensure a perfect match, simply provide us with your 17-digit VIN during or after checkout. Our technicians will handle the precise programming, making installation as simple as swapping the part.
Frequently Asked Questions
Expert Pro Tip
Before condemning your ECM, always perform a thorough check of your vehicle’s battery, alternator, and main ground connections. A weak or unstable power supply from a failing battery or poor ground can mimic many common ECM failure symptoms. Ensuring the electrical system is healthy can save you from a misdiagnosis.