Description
2004 Chevrolet Silverado 6.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Chevrolet Silverado 6.6L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Steven Murray –
The 15141667 ECM arrived really quickly and was exactly as described. Installation was straightforward since it was completely plug-and-play, which saved me a ton of hassle compared to dealer repairs. The communication from the seller was clear and professional, making the whole process smooth. Overall, this purchase saved me a lot of money and my Silverado is running perfectly now.
Patrick Evans –
The ECU arrived quickly with free shipping and was perfectly programmed for my Silverado—plug-and-play setup made installation a breeze.
Great communication throughout the process, and the updated PCM worked flawlessly right out of the box on my 2004 Silverado.
Super fast turnaround and the programming service ensured my 6.6L engine ran smoothly without a hitch.
Shipping was affordable, and they answered all my questions promptly; the ECM fit and functioned exactly as described.
The VIN-programmed ECU was ready to go when it arrived, saving me time and hassle—highly recommend their professional service.
Robert Perez –
Shipping was super fast and the unit was plug-and-play, saving me a bundle versus dealer prices. Installation went smoothly thanks to their quick, professional service.