Programmed 2014-2015 Cadillac CTS ECM | Plug & Play Engine Computer

### Programmed 2014-2015 Cadillac CTS ECM \| Plug & Play Engine Computer   ### Restore Your Cadillac’s Peak Performance and Reliability Is your Cadillac CTS running rough, displaying a persistent check engine light, or suffering from unexplained performance issues? A failing Engine Control Module (ECM) can disrupt the sophisticated engineering you expect, leading to poor fuel economy, hesitation, or even a no-start condition. This professionally programmed OEM Engine Control Module is the definitive solution to restore your vehicle’s precise engine management, power, and smooth operation. ### Common Symptoms & Your Solution A faulty ECM can manifest in numerous ways, often mimicking other sensor failures. If you’re experiencing issues like stalling, erratic shifting, a constant check engine light (especially with communication codes like U0100), or a general loss of power, the ECM is a primary suspect. This unit, a genuine OEM part, is the core of your vehicle’s management system. We make the replacement process simple by pre-programming this **Programmed 2014-2015 Cadillac CTS ECM** specifically to your car’s Vehicle Identification Number (VIN) before it ships. This ensures all systems communicate correctly, resolving those frustrating, hard-to-diagnose electronic gremlins. - ✔ **VIN-Programmed for Your Cadillac:** We flash this module with the latest GM software using your VIN, ensuring it works perfectly with your vehicle’s specific options right out of the box. - ✔ **Eliminate Engine Faults:** The correct solution for resolving persistent diagnostic trouble codes (DTCs), rough idle, and poor engine performance. - ✔ **Restore Smooth Operation:** Regain the crisp acceleration and seamless transmission shifting your luxury sedan was designed to deliver. - ✔ **Smart, Cost-Effective Repair:** Avoid the excessive costs and scheduling delays of a dealership visit with a solution that arrives ready for installation. - ✔ **Broad GM Compatibility:** This module is a direct replacement for multiple part numbers, including **12653998**, **12633555**, and **12655007**, covering a wide range of GM vehicles. - ✔ **Peace of Mind Protection:** This unit is backed by our one-year replacement warranty. #### An Expert’s Note on Modern Vehicle Repair As a technician with over 20 years of experience, I’ve seen countless vehicle owners chase expensive sensor and component replacements, only to find the root cause was the ECM all along. The complex network in a modern Cadillac requires a perfectly calibrated ‘brain.’ An improperly programmed module can create more issues than it solves. Our VIN-specific programming isn’t just a convenience—it’s a critical step that ensures every related module, from the transmission to the ABS, communicates flawlessly, just as the engineers intended. This is the key to a lasting, reliable repair for your **Programmed 2014-2015 Cadillac CTS ECM**. ### Frequently Asked Questions **What do I need to do after I purchase?** After placing your order, simply reply to your confirmation email with your vehicle’s 17-digit VIN. We must have your VIN to program the module before shipping. Your order will be on hold until we receive this information. **Is any additional programming required after installation?** No, this **Programmed 2014-2015 Cadillac CTS ECM** arrives fully flashed for your vehicle. In most cases, it is a direct installation. However, some vehicles may require a simple security relearn procedure (often called the ‘key cycle method’) or a crankshaft position sensor relearn, which can be done with a capable bi-directional scan tool. **How can I be sure my ECM is the problem?** Common signs include a check engine light that won’t go away, multiple unrelated error codes, engine stalling or misfiring, and communication error codes (U-codes). While a professional diagnosis is always the best first step, if sensors and wiring have been ruled out, the ECM is the most likely cause. **Is this a new part?** No, this is a high-quality, used OEM part sourced from a salvaged vehicle. It has been thoroughly inspected for functionality, offering you genuine factory reliability at a significant savings compared to a new unit from the dealer. **Will this fit vehicles other than the Cadillac CTS?** Yes. This ECM is compatible with a wide range of GM vehicles from approximately 2013-2017, including models like the Chevy Malibu, Impala, Equinox, Buick Regal, and GMC Acadia. Please check the detailed fitment list on this page to confirm compatibility with your specific model and engine. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it. ### Shipping - **Processing Time:** Reliably shipped within 2-3 business days. ### Warranty Enjoy peace of mind with a **one-year replacement warranty** on this part, effective from the date you receive it. Labor costs are not covered. If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience. **Return Address:** **Highway71autoparts** **9131 Highway 71 NE** **Spicer, MN, 56288**

• Country of Origin: United States
• Manufacturer Part Number: 12644446
• Manufacturer Warranty: 1 Year
• Superseded Part Number: 12633555, 12644446, 12655007, 12653998
• Conditions & Options: Programmed to your VIN GM: 12653998
• Genuine OEM: Yes
• PartNumber: 590
• Model: CTS
• Year: 2015
• Brand: GM
• Interchange Part Number: 590-08060