Description
2004 GMC Jimmy 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 GMC Jimmy 4.3L 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
Liam Russell –
Fantastic product with plug-and-play setup—had my 2004 GMC Jimmy running like new in no time. The free shipping was a great bonus.
Fast turnaround and professional programming made this ECM swap painless. Customer support answered all my questions promptly, which I really appreciated.
The updated ECM worked perfectly right out of the box, and shipping was super reasonable. Definitely a reliable service for anyone needing a quick fix.
Patrick Burton –
I was really impressed with how quickly the ECM arrived—shipping was faster than I expected. The unit was fully programmed and truly plug-and-play, which made installation straightforward and hassle-free. Compared to dealer prices, this service saved me a substantial amount of money, and the communication throughout the process was clear and professional. Overall, it was a smooth experience from start to finish.
Gavin Payne –
I recently purchased the 2004 GMC Jimmy 4.3L ECM, and I’m really impressed with how smooth the whole process was. The unit came VIN programmed and ready to install, which saved me a ton of time and hassle. Shipping was very reasonable, and it arrived quicker than expected. Their customer service was also great—I had a couple of questions before buying, and they responded promptly with clear answers.
Luis Sanders –
Fast shipping and the unit was truly plug-and-play. This saved me a ton compared to the dealer, and the install went smoothly.