Description
2004 Chrysler 300M 3.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Chrysler 300M 3.5L 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




Harrison Watson –
I was really impressed with how smooth the entire process was when ordering the ECM for my 2004 Chrysler 300M. The unit arrived quickly, and the best part was that it came VIN programmed, so installation was virtually plug-and-play. I had a few questions before ordering, and their customer service team responded promptly and clearly, which made me feel confident about the purchase. Shipping was free, which was a nice bonus given the urgency of my repair. Overall, this was a hassle-free experience, and my car runs perfectly now.
Owen Barrett –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Chrysler 300M—plug-and-play made installation a breeze.
Great communication throughout the process, and the updated ECM worked flawlessly as soon as I installed it.
Fast turnaround and professional programming took all the guesswork out of replacing my PCM.
Shipping was super affordable, and the unit was ready to go right out of the box—no extra setup needed.
They answered all my questions promptly and the repair quality exceeded my expectations.
Harvey Mitchell –
I ordered the 2004 Chrysler 300M ECM and was impressed by how quickly it arrived with free shipping. The unit was VIN programmed and ready to install right out of the box, which made the whole process smooth and hassle-free. Customer support was also very responsive, answering my questions promptly and making sure I was confident with the installation. Overall, a great experience from start to finish.
Travis Howard –
Fast shipping and a plug-and-play unit made installation a breeze, plus I saved a bundle versus dealer prices. Great service and quick turnaround all around.
John Tucker –
Great quality ECM, arrived quickly with free shipping, and the plug-and-play setup was flawless. Communication was spot on throughout the process.
Spencer Morgan –
I was really impressed with how quickly the 2004 Chrysler 300M ECM arrived after I placed the order. The unit was perfectly programmed to my VIN and truly plug-and-play, which made the installation process smooth and hassle-free. I had been quoted a steep price at the dealership, so buying this unit online saved me a significant amount of money. The seller’s communication was clear and responsive, which gave me confidence throughout the whole process. Overall, I’m very happy with the professional service and fast turnaround time. If you need an ECM replacement, this is definitely the way to go.
Keith Allen –
I’m really impressed with how quickly this ECM arrived—shipping was faster than I expected. Installation was straightforward since the unit was truly plug-and-play, which made the whole process stress-free. The VIN programming was spot on, and choosing this over a dealer repair saved me a significant amount of money. The seller was also very responsive when I had a couple of questions, which made the experience even better.