Restore Your Vehicle’s Brain, Restore Your Peace of Mind
Is your Cadillac, Buick, or GMC plagued by an illuminated check engine light, erratic engine behavior, or frustrating no-start conditions? A failing Engine Control Module (ECM) can disrupt your vehicle’s performance and your daily routine. This isn’t just a replacement part; it’s the definitive, ready-to-install solution to restore your vehicle’s factory-spec operation and get you back on the road with confidence. We eliminate the dealership hassle by pre-programming this module to your vehicle’s specific VIN, ensuring a seamless and effective repair.
Common Symptoms of a Failing ECM & Your Solution
If you’re experiencing any of the following issues, a faulty engine computer is a likely culprit. This module is the direct fix for problems stemming from a failed original unit.
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) such as P0601, P0602, P0606, or other internal processor faults
- Unexplained engine stalling or hesitation
- Noticeable decrease in fuel economy
- Harsh or incorrect transmission shifting
- Complete no-start or intermittent starting problems
Our process provides a reliable and straightforward fix. By purchasing this Programmed 12630594 ECM, you are getting a unit that is professionally flashed with the latest GM software updates specifically for your car. This ensures all systems communicate correctly, restoring the smooth, responsive drive you expect.
Features & Benefits
- ✔ VIN-Specific Programming Included: This ECM arrives at your door ready for installation. No expensive trips to the dealer or locksmith for programming are required.
- ✔ Latest GM Software Updates: We flash the module with the most current software from General Motors, which can resolve underlying factory bugs and improve overall performance and efficiency.
- ✔ Plug-and-Drive Installation: Simply install the module, and your vehicle is ready to go. This significantly reduces vehicle downtime and repair complexity.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for part numbers 12623325, 12628387, 12605672, 12630594, and 19300016, ensuring a perfect fit for your 2008-2009 CTS, STS, Acadia, and more.
- ✔ Restored Performance & Efficiency: A properly functioning ECM is critical for optimal engine timing, fuel delivery, and emissions control, leading to a smoother running and more efficient vehicle.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty, giving you confidence in your purchase.
Expert Insight: The Digital Handshake
Many people don’t realize that an ECM is more than just a component; it’s the central command of your vehicle. In sophisticated vehicles like the Cadillac CTS and GMC Acadia, the ECM must communicate flawlessly with the transmission, ABS, and body control modules. Simply swapping a used module without proper VIN programming can lead to a cascade of new errors or even a no-start condition. Our process ensures this Programmed 12630594 ECM is a perfect digital match for your car, preserving all factory functions and preventing costly follow-up issues.
Don’t let a faulty computer keep your premium vehicle sidelined. This Programmed 12630594 ECM is the most reliable and efficient way to solve complex electronic issues and restore your vehicle’s integrity.
Frequently Asked Questions
Do I need to send my old ECM to you?
No, this is a direct replacement part and there is no core charge. You can keep or responsibly dispose of your old module.
Is any additional programming required after installation?
No. The unit comes fully pre-programmed to the VIN you provide, making it ready for a plug-and-drive installation. In some rare cases, a security or crank relearn procedure may be needed, which can be done with a capable scan tool.
How do I provide my VIN?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive it.
What if my original part number isn’t on your list?
The part numbers we’ve listed (12623325, 12628387, 12605672, 12630594, 19300016) are the most common direct interchanges. If your number is different, please contact our support team before ordering to verify compatibility.
Will this fix my specific problem for sure?
This ECM will correct any issues directly caused by a faulty original engine computer. However, we always recommend that a proper diagnosis is performed by a qualified mechanic to rule out other potential causes, such as wiring or sensor failures.