Is a faulty Engine Control Module (ECM) causing frustrating drivability issues or a persistent check engine light in your GM vehicle? Get back on the road with confidence with this fully programmed, ready-to-install Engine Control Module. We flash this computer with the latest GM software updates using your vehicle’s specific VIN, ensuring it works seamlessly right out of the box, with no need for an expensive trip to the dealership.
Common Symptoms & Your Solution
A failing ECM can manifest in various ways, often leading to a vehicle that is unreliable or undrivable. If you’re experiencing issues like stalling, rough idling, a sudden drop in fuel economy, engine misfires, or a complete no-start condition, your engine computer is a likely culprit. Diagnostic Trouble Codes (DTCs) such as P0601, P0606, or U0100 (Lost Communication With ECM) often point directly to a module failure. This Programmed 12651994 Engine Control Module is the direct, professional-grade solution to these complex electronic problems, designed to restore your vehicle’s original performance and reliability.
- ✔ VIN-Specific Programming: Arrives pre-flashed to your exact vehicle. This means no additional, costly programming is required—it’s ready for installation upon arrival.
- âś” Latest GM Software: We load the most current factory software, ensuring optimal performance, fuel efficiency, and emissions control as specified by the manufacturer.
- âś” Plug-and-Play Installation: Designed as a direct-fit replacement for part numbers 12651994, 12643248, and 12652814, it uses your vehicle’s original mounting points and connectors.
- âś” Solves Drivability Problems: The definitive fix for issues like rough running, poor acceleration, and erratic engine behavior caused by a faulty computer.
- âś” Broad Compatibility: A verified solution for a wide range of Chevrolet, Cadillac, Buick, and GMC vehicles, including the CTS, Malibu, Impala, LaCrosse, Acadia, and more.
- âś” Warranty Backed: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
A common mistake is installing a used ECM without proper programming. The ECM is the ‘brain’ of your vehicle, controlling everything from the fuel injectors to the transmission shifts. It’s tied directly to your vehicle’s security system (immobilizer) via the VIN. Our VIN-matching service ensures that when you receive your Programmed 12651994 Engine Control Module, it communicates seamlessly with all other components, just like the original, preventing the no-start conditions and security lockouts that are common with un-programmed units.
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. This ECM arrives at your door fully programmed to the VIN you provide. The service is complete. You or your mechanic will simply need to install it. In some cases, a security or crank relearn procedure may be necessary with a scan tool, a standard step for this type of repair.
How do I provide my vehicle’s VIN?
After you complete your purchase, please send us a message with your 17-digit Vehicle Identification Number (VIN). You can also add it as a note during the checkout process. We cannot ship your part until we have this information.
Is this a brand new part?
This is a high-quality, OEM replacement part that has been thoroughly inspected and tested to ensure it meets or exceeds original factory specifications. It is guaranteed to function correctly once programmed for your vehicle.
What if my original part number is different?
This module is a direct replacement for several part numbers, including 12651994, 12643248, and 12652814. As long as your vehicle’s year, make, and model are on our compatibility list, we will program the module to work perfectly for your application.
What is the warranty on this Programmed 12651994 Engine Control Module?
This unit is backed by our one-year replacement warranty, giving you confidence in your repair.