Get Your Duramax Back to Peak Performance
Is your Silverado, Sierra, Express, or Savana van running rough, throwing codes, or refusing to start? A failing Engine Control Module (ECM) can bring your workhorse to a dead stop, costing you time and money. This isn’t just an inconvenience; it’s a critical failure that sidelines your most important tool. We provide the definitive solution: a direct-fit ECM, professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This is the fastest, most reliable way to get your truck off the lift and back on the road where it belongs.
Common Symptoms & Your Solution
If you’re experiencing issues like a no-start condition, intermittent stalling, harsh transmission shifting, or specific Diagnostic Trouble Codes (DTCs) related to module communication (like U-codes) or injector circuits (P0201-P0208), a faulty ECM is the likely culprit. Our Programmed 2006-2007 Duramax LLY ECM is the solution. It arrives at your door ready for installation, bypassing the need for an expensive trip to the dealership for programming. We handle the complex part so you can focus on the straightforward installation.
- ✔ Plug & Play Installation: This ECM is pre-programmed to your truck’s specific VIN, ensuring it works seamlessly with your existing keys, security system, and modules right out of the box.
- ✔ Eliminate Dealer Costs: Save hundreds of dollars and valuable time by avoiding dealership programming fees and scheduling delays.
- ✔ Latest GM Software: Your module is flashed with the most current GM-authorized calibrations, which can resolve factory bugs and improve engine and transmission performance.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for a wide range of part numbers, including 12606126, 12588335, 19260753, 12603623, and YNAY.
- ✔ Restore Full Power: A correctly functioning ECM is critical for proper fuel delivery, turbo control, and emissions systems. Restore the power and efficiency you depend on.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
For the 6.6L Duramax LLY engine, the ECM programming is far more than a simple startup procedure. It controls incredibly precise parameters, including the individual flow rates for each fuel injector. Without a perfect VIN-match program, you can experience poor mileage, excessive smoke, and even long-term engine damage. Our process ensures these critical settings are perfectly calibrated for your specific engine, providing smoother operation and protecting your investment. This is why a generic, non-programmed module is a gamble you can’t afford to take with a Duramax.
Don’t let a faulty computer dictate your schedule. Take control with a reliable, professionally prepared Programmed 2006-2007 Duramax LLY ECM and get your truck running strong again. Providing your VIN at checkout is all it takes to get the right part, programmed correctly, the first time.
Frequently Asked Questions
Do I need to send you my old ECM?
No core charge or return is required for this part. You can purchase it outright without the hassle of sending your old unit back.
Where do I provide my VIN?
Please provide your 17-digit Vehicle Identification Number (VIN) during the checkout process. There will be a notes or comments section where you can enter it. We cannot program and ship your module without it.
Is any additional programming required after installation?
No. This ECM is programmed to be plug-and-play. Once installed, you may need to perform a security relearn procedure, which is a simple process that can be done without special tools. Instructions are readily available online or we can point you to them.
How do I know if this ECM will fit my truck?
This module fits 2006-2007 Chevrolet Silverado/Express and GMC Sierra/Savana 2500/3500 models with the 6.6L Duramax LLY diesel engine (8th digit of VIN is ‘2’). It replaces a long list of original part numbers, including 12606126 and 12588335. If you are unsure, please contact us with your VIN before ordering.
What if I have modifications on my truck?
This ECM is programmed with standard, factory GM calibrations for your specific VIN. It is not designed to accommodate aftermarket performance modifications. It is intended to restore the vehicle to its original operating specifications.