Description
2012 Ford Mustang 3.7L ECM / ECU – Programmed | Plug&Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Ford Mustang 3.7L 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: 647-247-8555





Chase Rivera –
I recently purchased the CR3A-12A650-HC for my 2012 Ford Mustang 3.7L, and I couldn’t be happier with how smoothly everything went. The ECU arrived quickly with free shipping, which was a nice surprise. What impressed me most was that the unit was already VIN programmed, so installation was straightforward—no extra trips to the mechanic for setup. The quality of the part feels top-notch, and my car runs perfectly now. The seller also kept me in the loop throughout the process, answering all my questions promptly. Highly recommend this product and the service behind it!
Ian Johnson –
I was really impressed with how quickly the CR3A-12A650-HC ECM arrived after I placed my order. The unit came already VIN programmed, so installation was straightforward and completely plug-and-play. I saved a ton compared to what the dealer quoted, which was a huge relief. The seller kept in touch throughout the process, answering all my questions promptly. Once installed, my Mustang ran perfectly, and the smooth operation really confirmed it was a quality part. Overall, this service made the whole repair stress-free and affordable.
Shane Richardson –
Arrived quickly with free shipping and was already VIN programmed, making installation a breeze. Great quality and smooth process from start to finish!
Adam Anderson –
I’m really impressed with the CR3A-12A650-HC ECM for my 2012 Mustang. The shipping came much faster than I expected, which was a big plus. Installation was straightforward since the unit was plug-and-play, and everything synced perfectly right away. Ordering this saved me a ton compared to dealer prices, and their communication throughout the process was spot on.
Zachary Ward –
I was really impressed with the plug-and-play setup for this ECM. It arrived quickly with free shipping, and the VIN programming was flawless right out of the box. Installation was straightforward, and my Mustang runs better than ever. The quality of the update definitely exceeded my expectations.
Ian Watson –
The unit arrived quickly and was completely plug-and-play, saving me a bundle compared to dealer prices. Installation went smoothly, and the communication throughout was top-notch.