Your Work Truck is Down. Let’s Get it Running.
Nothing’s more frustrating than a truck that won’t start or run right, especially when your livelihood depends on it. A faulty Engine Control Module (ECM) can bring your entire operation to a halt, causing erratic engine behavior, transmission problems, or a complete no-start condition. This isn’t just an inconvenience; it’s lost time and lost money. We understand that. That’s why we offer this rigorously tested, VIN-programmed ECM, designed to get your dependable GM diesel truck back on the road and earning its keep with minimal downtime.
Common Symptoms & Your Solution
If your Silverado, Sierra, Savana, or Express is experiencing any of the following, a failing ECM is the likely culprit. This module is the definitive solution for:
- Complete no-start or intermittent starting issues
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0606, or U-codes
- Poor fuel economy or a sudden loss of power
- Harsh or erratic automatic transmission shifting
- Stalling or misfiring for no apparent reason
Don’t let a bad computer sideline your vehicle. This replacement 2006-2007 Duramax LLY ECM is your direct-fit, reliable fix to restore factory performance and dependability.
Features & Benefits
- ✔ Plug & Play Installation: Arrives pre-programmed to your truck’s specific VIN. No expensive trip to the dealership for flashing is required.
- ✔ Latest GM Software: We flash each module with the newest, most stable software updates from General Motors to ensure optimal engine and transmission performance.
- ✔ Restores Full Functionality: Solves common electrical and communication faults, bringing your engine’s performance, fuel efficiency, and shifting back to factory specifications.
- ✔ Guaranteed Compatibility: A direct replacement for a wide range of part numbers including 12606127, 19260753, 12588335, 12606126, and more.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note: Back on the Job Site
We recently worked with a contractor whose ’07 Silverado 2500 Classic was dead in the water. It would crank but never fire up. After chasing sensors and wiring for a week, he was frustrated and losing money on a job. He ordered this ECM, provided his VIN, and had the new module in two days. After a straightforward installation and a quick CASE relearn with his scan tool, the truck fired up on the first try. He called us from the job site the next day, relieved to have his primary workhorse back in action. That’s the difference a reliable, correctly programmed 2006-2007 Duramax LLY ECM makes.
Frequently Asked Questions
Do I need to send you my old ECM?
No, there is no core charge or need to send us your original module. This is a direct purchase, which helps you get your vehicle repaired faster.
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the ECM correctly for your truck’s specific configuration.
Is any additional programming needed after installation?
While the main engine programming is complete, you will need to perform a Crankshaft Variation Relearn (also known as a CASE relearn) using a capable bi-directional scan tool. Most professional repair shops can perform this procedure in a few minutes. This is a standard procedure for any GM ECM replacement.
How do I know if this ECM will fit my truck?
This 2006-2007 Duramax LLY ECM fits 2500 and 3500 series Silverado, Sierra, Express, and Savana models with the 6.6L LLY diesel engine (VIN 2, 8th digit). Please check the detailed fitment list on this page or match one of the listed part numbers to be certain.
What if my part number isn’t listed?
The provided list (19260753, 12588335, 12606126, 12606127, etc.) covers the most common numbers. If your part number is different, please contact us with your VIN and original part number. We can verify compatibility for you.