Is Your Vehicle Running Rough, Stalling, or Refusing to Start?
A failing Engine Control Module (ECM) can be the source of immense frustration, leaving you with an unreliable vehicle and a dashboard full of warning lights. If you’re experiencing perplexing issues like intermittent stalling, poor fuel economy, communication errors with scan tools, or a complete no-start condition, your vehicle’s central computer may be the culprit. Don’t let a faulty module keep you off the road. This is the definitive, hassle-free solution to restore your vehicle’s health and your peace of mind.
Common Symptoms & Your Solution
This professionally Programmed 12633264 ECM is the answer to common and complex engine management problems. It directly addresses issues often associated with Diagnostic Trouble Codes (DTCs) such as P0601 (Internal Control Module Memory Check Sum Error), P0606 (ECM/PCM Processor Fault), and other communication or performance-related codes. By replacing your old unit with this pre-programmed module, you are installing a fresh, reliable component loaded with the latest factory software for your specific vehicle.
- ✔ VIN-Programmed for Your Vehicle: We flash this module with the most current GM software using your vehicle’s unique VIN. This ensures 100% compatibility and eliminates the need for an expensive trip to the dealership for programming.
- ✔ True Plug-and-Play Installation: Because the programming is done before we ship, this unit arrives ready for installation. In most cases, no complicated relearn procedures are required. Simply install the module, and you’re ready to go.
- ✔ Restored Performance & Efficiency: A new, correctly functioning ECM ensures your engine receives the precise signals for fuel delivery, ignition timing, and emissions control, restoring its original power and fuel economy.
- ✔ Solves Erratic Behavior: Puts an end to frustrating issues like rough idling, hesitation, and inconsistent transmission shifting caused by a failing computer.
- ✔ Guaranteed Quality: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
An Expert’s Note on Software Updates
As a veteran technician, I’ve seen countless vehicles with mysterious drivability issues that weren’t caused by a failed part, but by outdated factory software. GM frequently releases updates to resolve everything from harsh shifting to minor hiccups the original owner might not have even noticed. When we program your module, we don’t just match the VIN—we ensure it’s loaded with the absolute latest software available. This means you’re not just replacing a part; you’re often getting a component that can make your vehicle run smoother and more efficiently than it has in years.
This Programmed 12633264 ECM is a direct-fit solution for a wide range of GM vehicles, including the Chevrolet Malibu, Camaro, Corvette, Colorado, Cadillac CTS, and more. Please verify the part number and check the fitment list to confirm it is the correct part for your application.
Frequently Asked Questions
How do I provide my VIN number?
After completing your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as it is essential for the programming process.
Will I need to do anything after installing this ECM?
In most vehicles, this is a direct plug-and-play installation. However, some models may require a simple security or anti-theft relearn procedure, which can typically be done without special tools. Instructions for this are widely available online or in your vehicle’s service manual.
My original ECM has a different service number. Will this work?
Yes. This module, service number 12633264, is a direct interchange for several other numbers, including 12678513. As long as your vehicle’s year, make, model, and engine are on our compatibility list, this module will function correctly once programmed to your VIN.
Is this a difficult part to install myself?
For someone with basic mechanical skills, replacing an ECM is generally straightforward. It typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then reversing the process for the new one. Always disconnect the battery before starting work.
What makes this better than getting a used one from a junkyard?
A used module from another vehicle is locked to that vehicle’s VIN and options. It will not work in your car without being reprogrammed by a dealer or a specialized shop, adding significant cost and hassle. Our Programmed 12633264 ECM arrives ready to install with fresh, updated software, saving you time, money, and headaches.