Restore Peak Performance to Your Cadillac STS
Is your 2006 Cadillac STS suffering from frustrating and unpredictable issues? A faulty Engine Control Module (ECM) can disrupt the sophisticated performance you expect, leading to check engine lights, poor fuel economy, or even a no-start condition. This direct-fit replacement ECM, service number 12602044, is the definitive solution to restore your vehicle’s precision, power, and reliability. We professionally program this module to your vehicle’s specific VIN, ensuring a seamless installation and communication with all onboard systems.
Common Symptoms & Your Solution
A failing engine computer can manifest in various ways. If you’re experiencing any of the following, a faulty ECM is the likely culprit:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal processor failure (e.g., P0601, P0606)
- Unexplained drop in fuel efficiency
- Engine stalling, stumbling, or misfiring
- Harsh or erratic transmission shifting
- Complete failure to start the engine
This pre-programmed module is your solution. It arrives ready to be installed, taking the guesswork out of the repair and getting you back on the road with the confidence you deserve. It is a reliable replacement for multiple service numbers, including 12590032, 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737.
Features & Tangible Benefits
- ✔ VIN-Specific Programming: We flash the unit with the latest GM software updates using your car’s VIN. This ensures perfect compatibility and a true plug-and-play installation.
- ✔ Restored Engine Efficiency: A properly functioning ECM optimizes fuel delivery and ignition timing, helping to restore your Cadillac’s original fuel economy and power.
- ✔ Eliminate Fault Codes: This module is the core solution for clearing persistent internal processor fault codes that other repairs can’t fix.
- ✔ Broad Compatibility: While perfect for your 2006 Cadillac STS, this unit also fits a wide range of other GM vehicles, ensuring a quality, tested component.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
For a sophisticated vehicle like a Cadillac STS, programming isn’t just a suggestion—it’s essential. The ECM is the central nervous system, communicating with the transmission, anti-lock brakes, security system, and more. Installing a non-programmed module from a salvage yard is a recipe for disaster, often leading to a no-start condition or a cascade of new error codes. Our VIN-programming service ensures that the new ‘brain’ recognizes your specific vehicle, its options, and its security keys, making the installation process as smooth as possible.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is a critical step in the process.
Is any additional programming required after installation?
In most cases, no. Our goal is to make this a plug-and-play repair. However, some vehicles may require a security relearn procedure (often called a CASE relearn or anti-theft relearn), which can typically be done without special tools. Instructions are widely available online for this simple procedure.
Will this fix my specific problem?
This ECM is the solution for issues directly caused by a failing engine computer, such as internal processor faults. While it resolves a wide array of symptoms, it’s crucial to ensure your vehicle has been properly diagnosed. This module will not fix problems related to other faulty sensors or mechanical issues.
Is this the exact same part number as my old one?
Your old module may have a different service number. This unit, 12602044, is an authorized and fully interchangeable replacement for all the service numbers listed in the description, containing the most up-to-date software from the manufacturer.
What if I have a different model than the 2006 Cadillac STS?
This ECM fits a very wide range of GM vehicles. Please review the detailed fitment list in the description carefully. If your make, model, and engine are listed, this module will work once programmed to your VIN.