Restore Peak Performance to Your Cadillac
Is your 2006 Cadillac STS suffering from frustrating engine issues like a persistent check engine light, rough idling, stalling, or a sudden drop in fuel economy? These are often signs that the vehicle’s core computer—the Engine Control Module (ECM)—is failing. This isn’t just an inconvenience; it compromises the performance and reliability you expect from a Cadillac. This replacement module is the definitive solution to restore your vehicle’s precise engine management and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty ECM can cause a wide range of problems that are often misdiagnosed. If you’re experiencing any of the following, this module is your solution:
- Persistent Check Engine Light (CEL) with codes like P0601, P0606, or other internal controller errors.
- Unexplained drops in fuel efficiency.
- Engine stumbling, hesitating, or stalling unexpectedly.
- Rough or erratic idle.
- Complete no-start condition where the engine cranks but won’t turn over.
- Transmission shifting issues or communication errors.
By replacing your old unit with this professionally programmed 2006 Cadillac STS engine control module, you are directly addressing the root cause of these issues and restoring the vehicle’s factory-specified operational parameters.
Features & Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures it communicates seamlessly with your car’s existing systems, eliminating the need for an expensive trip to the dealership for coding.
- ✔ Optimal Performance & Efficiency: We flash each unit with the latest, most stable software updates from GM. This ensures your engine operates with the most refined fuel maps, ignition timing, and emissions controls for maximum power and fuel economy.
- ✔ Guaranteed Compatibility: By programming the module to your VIN, we ensure a perfect match for your engine, transmission, and all factory options. This is the correct 2006 Cadillac STS engine control module for a hassle-free repair.
- ✔ Proven Reliability: This ECM is interchangeable with a wide range of GM service numbers, demonstrating a robust and reliable design trusted across numerous makes and models.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty, ensuring your investment is protected.
Expert Insight: The Critical Role of VIN Programming
Many people are tempted to buy a used ECM from a salvage yard, only to find it doesn’t work. That’s because an ECM is not a simple one-size-fits-all part. It’s programmed with vehicle-specific data, including the security system (immobilizer), transmission type, and emissions equipment. Our VIN programming service isn’t just a convenience—it’s essential. We ensure the brain of your engine is a perfect match for the body, preventing compatibility conflicts that can leave your car immobile.
Don’t let a faulty computer diminish your driving experience. This professionally programmed 2006 Cadillac STS engine control module is the most reliable and straightforward way to solve complex electronic issues and restore the smooth, responsive power your Cadillac was built to deliver.
Frequently Asked Questions
Do I need to do any additional programming after installation?
No. The module comes fully programmed to your vehicle’s VIN. In most cases, it is a direct installation. However, you may need to perform a simple security relearn procedure, which can be done without special tools and typically takes about 10-15 minutes. We can provide instructions for this process.
How do I provide my vehicle’s 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 the correct part for my vehicle?
This ECM, service number 12630457, fits a 2006 Cadillac STS and a wide variety of other GM vehicles as listed. The most important step is providing your VIN; we use it to guarantee 100% compatibility with your specific vehicle’s configuration.
What is the difference between this and a used ECM?
A used ECM from a salvage yard will be programmed to the donor vehicle, not yours. It will cause compatibility issues and likely won’t start the car. Our modules are professionally programmed with the latest GM software for your specific VIN, ensuring a clean, correct, and reliable repair.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original ECM (e.g., DTC P0601), then yes, this module is the correct fix. It’s crucial to properly diagnose the vehicle first to ensure the fault lies with the ECM and not a different sensor or component.