Restore Your Vehicle’s Brain and Get Back on the Road
Is your truck or car plagued by confusing electrical issues, poor engine performance, or a dreaded no-start condition? A failing Engine Control Module (ECM) can bring your vehicle to a standstill, disrupting your work and your life. This professionally prepared unit is the direct, reliable solution to get you running right again. We provide a fully programmed 12670335 Engine Control Module, flashed with the latest official GM software specifically for your vehicle’s VIN. This critical step ensures a seamless installation, saving you from expensive dealership programming fees and complex procedures.
Common Symptoms & Your Direct Solution
If you’re experiencing any of the following, a faulty ECM is the likely culprit:
- Check Engine Light is on with communication-related codes (U-codes).
- Engine stalling, sputtering, or misfiring for no apparent reason.
- Noticeable decrease in fuel economy.
- Erratic or non-functional gauges on your instrument cluster.
- Transmission shifting problems or harsh engagement.
- The vehicle cranks but refuses to start.
Don’t let a bad computer keep you sidelined. This module is the definitive fix, arriving at your door ready to be installed. By matching the software to your VIN before shipping, we eliminate the guesswork and ensure your vehicle’s components communicate correctly from the moment you turn the key.
Features & Benefits
- ✔ Ready to Install: Arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for a trip to the dealer.
- ✔ Latest GM Updates: We flash the module with the most current and stable software available from General Motors for optimal performance and reliability.
- ✔ Wide Compatibility: A direct replacement for multiple part numbers including 12668866, 12668994, 12643636, 12663405, and more.
- ✔ Restores Performance: Solves common issues like poor idling, hesitation, and communication errors to make your engine run smoothly again.
- ✔ Cost-Effective Solution: Get a fully functional, programmed 12670335 Engine Control Module without paying high dealership prices for parts and labor.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
Over my 20 years turning wrenches, I’ve seen countless repairs get derailed by module programming. An ECM isn’t just a part you swap; it’s the brain of your vehicle. Without the correct, VIN-specific software, it simply won’t communicate properly with the transmission, instrument cluster, or anti-theft systems. This leads to more codes and endless frustration. We handle that critical programming step for you, ensuring the module integrates seamlessly with your vehicle’s systems right out of the box. It’s the difference between a quick fix and a week-long headache.
Frequently Asked Questions
How does the programming process work?
It’s simple. After you place your order, you provide us with your vehicle’s 17-digit VIN. We use that information to load the exact, most up-to-date GM software for your specific vehicle onto the module before we ship it out.
Will I need to do any additional programming after installation?
In most cases, no. The module is programmed for engine and transmission operation. However, on some GM vehicles, you may need to perform a simple security relearn procedure (often called a Passlock or Passkey relearn) which can typically be done without special tools. Instructions are widely available online for this process.
Is this the correct part for my vehicle?
This module fits a wide range of GM vehicles. The best way to confirm is to match your original part number to one of the numbers listed in the description (12668866, 12668994, 12643636, 12663405, 12670335, 22819494, 12692200). If you are unsure, please contact us with your VIN.
What information do you need from me?
All we need is the 17-digit Vehicle Identification Number (VIN) from your vehicle. You can typically find this on your dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
How quickly will my order ship?
Our process is built for speed. Once we receive your VIN, we typically program and ship the module within one business day. The sooner we get your VIN, the sooner we can get your part on its way to you.
What happens if I have a problem after installation?
Your purchase is protected. This unit is backed by our one-year replacement warranty. If you encounter any issues with the module itself, please contact us, and we will be happy to assist you with the warranty process.