Description
2004 Jeep Grand Cherokee 4.7L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Grand Cherokee 4.7L 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



Luis Carter –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected, which was a relief. When I got it, the unit was truly plug-and-play, and installation went smoothly without any hiccups. I saved a ton of money by ordering this online instead of going through the dealer, which would have been way more expensive. The whole process was straightforward, and the communication from the seller was clear and helpful. My Jeep is running perfectly now, and I’m really happy with the professional service I received.
Harrison Payne –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Jeep Grand Cherokee—installation was hassle-free.
Great communication throughout the process and the plug-and-play setup made replacing my ECM a breeze.
Received my updated PCM faster than expected, and their professional programming service saved me a lot of time and headaches.
Joel Bailey –
I’m really impressed with the RL044565AJ ECM for my 2004 Jeep Grand Cherokee. The unit arrived quickly, and installation was straightforward since it was completely plug-and-play. It saved me a ton compared to dealer prices, and the team was very responsive when I had a couple questions. Overall, a smooth experience from start to finish.
Paul Cox –
Fast shipping and a plug-and-play unit made installation a breeze. Saved me a ton compared to dealer prices and the service was top-notch.