Programmed 2006-2007 GM 6.6L Diesel ECM | Direct Fit for Silverado & Sierra

Get Back on the Road, Fast.

Don’t let a faulty computer keep your work truck sidelined. This Engine Control Module is your key to restoring lost power and peace of mind. We program it to your VIN so it’s ready to install right out of the box, getting you back to work with confidence. Get the reliable solution your truck deserves.

$1295.95

+11.99 USPS Priority Shipping

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Get Your Workhorse Back on the Job

Is your 2006-2007 Silverado, Sierra, or Savana work truck suffering from erratic behavior, a no-start condition, or a persistent check engine light? A failing Engine Control Module (ECM) can bring your operations to a grinding halt, costing you time and money. This professionally programmed ECM is the definitive, reliable solution to restore your truck’s core dependability and get you back on the road without the hassle and expense of a dealership visit.

Common Symptoms of a Failing ECM & Your Solution

A faulty engine computer can manifest in numerous ways that are often misdiagnosed. If your truck is experiencing any of the following, a failing module is a likely culprit:

  • Engine stalling or shutting off unexpectedly
  • Rough, inconsistent idle
  • Noticeable loss of power and poor acceleration
  • Reduced fuel economy
  • Difficulty starting the engine or a complete no-start condition
  • Check Engine Light with Diagnostic Trouble Codes (DTCs) like P0601, P0606, or other communication errors

This unit is the direct answer to these problems. As a critical component, a properly functioning computer is essential for managing everything from fuel injection to transmission shifting. Our Programmed 2006-2007 GM 6.6L Diesel ECM is tested and flashed with the latest software to restore your vehicle’s factory performance and reliability.

Features & Benefits

  • ✔ VIN-Specific Programming: Arrives at your door ready for installation. We flash the unit with the latest GM software updates using your vehicle’s specific VIN, which eliminates the need for expensive dealership programming.
  • ✔ Guaranteed Compatibility: A direct-fit replacement for multiple OEM part numbers including 12606126, 19260753, 12588335, and 12603623, ensuring a perfect match for your 2006-2007 GM 6.6L LLY Diesel vehicle.
  • ✔ Restore Peak Performance: Cures common drivability problems like rough idling, hesitation, and poor fuel mileage, bringing back the consistent, reliable power you depend on every day.
  • ✔ Simplified Installation: Designed for a straightforward swap. Once installed, your truck is nearly ready to go. Note: Some vehicles may require a simple security relearn procedure, which can be done without special tools.
  • ✔ Dependable Coverage: This unit is backed by our one-year replacement warranty.

Expert Insight from a 20-Year Veteran Technician

I’ve seen countless work trucks sidelined by a faulty ECM. The frustrating part for owners is that the symptoms often mimic other problems, leading them to replace perfectly good sensors and wiring, wasting valuable time and money. The E-series controllers in these 6.6L LLY engines are robust, but heat cycles and vibrations eventually take their toll on the internal processor. A tell-tale sign is often a P0606 ‘ECM Processor Fault’ code. This Programmed 2006-2007 GM 6.6L Diesel ECM isn’t just a part; it’s a diagnostic shortcut and a dependable fix that gets your truck earning its keep again, fast.

Frequently Asked Questions

How do I provide my VIN for programming?

After you complete your purchase, you will need to send us a message with your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is essential for the ECM to function in your truck.

Is this part difficult to install?

The physical installation is straightforward for anyone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module to swap in the new one. Some vehicles may require a security relearn procedure afterwards, which syncs the new ECM with your keys. This procedure is simple and instructions can be readily found online or in a service manual.

Will this fix my check engine light?

If the check engine light is caused by an internal failure of the original ECM (indicated by codes like P0601 or P0606), then this part is the correct fix. However, if the light is on due to other issues like a faulty sensor or wiring problem, those issues will still need to be addressed separately.

What does ‘flashed with the newest updates’ mean?

Over the life of a vehicle, manufacturers like GM release software updates to improve performance, fuel efficiency, and fix bugs. We ensure your replacement ECM is programmed with the very latest and most stable software version available for your specific VIN, ensuring optimal operation.

Do I need to send my old computer back?

No. There is no core charge or requirement to return your old, non-functioning ECM. You can dispose of it as you see fit.

Genuine OEM

Yes

Year
Condition

Refurbished

MPN

12603623

Interchange part number

PartNumber

590

Model

savana-2500

Year

2007

Brand

GM

Manufacturer Part Number

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