Description
2004 Toyota Corolla 1.8L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Toyota Corolla 1.8L 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




Logan Murray –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2004 Corolla—no issues at all. Communication was clear and they answered all my questions right away.
Jeremy Richardson –
I ordered the 89661-02C73 ECM for my 2004 Toyota Corolla and was really impressed with how smoothly everything went. The unit arrived quickly with free shipping, which was a nice bonus. They also handled the VIN programming professionally, so it was truly plug-and-play once I got it installed. Customer support was responsive and answered all my questions promptly, making the whole process worry-free.
Michael Green –
I was really impressed with how fast the shipping was for this 89661-02C73 ECM for my 2004 Toyota Corolla. When it arrived, it was fully VIN programmed and truly plug-and-play, which made the installation surprisingly straightforward—no headaches or extra trips to the mechanic needed. The whole process saved me a ton compared to what the dealer quoted, and the communication with the seller was clear and professional throughout. My car started running perfectly right away, and it felt like I got a brand new part without the dealer price tag. Definitely a smart choice if you need an ECM replacement.
Shane Kelly –
Fast shipping and the ECU was truly plug-and-play. Saved me a bundle over dealer prices and installation went without a hitch.
James Bailey –
I was really impressed with how smoothly the entire process went for this 2004 Toyota Corolla ECM. The unit arrived quicker than I expected, and the shipping cost was very reasonable, which was a nice bonus. What stood out the most was that it came VIN programmed, so all I had to do was plug it in – no extra hassle or trips to a mechanic. The quality of the ECU feels top-notch, and my Corolla runs like new again. Definitely will buy from this seller in the future if needed.
Joel Walker –
I was really impressed with the fast shipping and the fact that the ECM came fully programmed and ready to install. The unit was a perfect fit for my 2004 Toyota Corolla, making the swap straightforward and hassle-free. Compared to dealership quotes, this service saved me a significant amount of money. The communication was clear throughout the process, and everything went smoothly from order to installation.