Description
2012 Ford Mustang 3.7L ECM / ECU – VIN Programmed | Updated
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 for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



Hunter Little –
Fast shipping and a true plug-and-play unit—saved me a ton compared to dealer prices. Installation was seamless and the communication was spot on.
Connor Morgan –
The CR3A-12A650-GC ECM arrived much quicker than I expected, which was a huge plus. Installation was straightforward since it was truly plug-and-play, and it worked perfectly right out of the box. Choosing this over the dealer saved me a significant amount of money, and the team’s communication throughout the process was clear and helpful. Overall, a smooth experience from start to finish.
Henry Campbell –
Received my ECM quickly with free shipping, and the plug-and-play setup worked flawlessly on my 2012 Mustang. Communication was spot on throughout the process.
Harrison Foster –
I purchased the CR3A-12A650-GC for my 2012 Mustang and was really impressed with how quickly it arrived, thanks to their very reasonable shipping options. The unit came VIN programmed and was essentially plug-and-play, which made installation straightforward. The quality of the ECM is top-notch, and I noticed an immediate improvement in how my car runs. Plus, the team was quick to answer a couple of my questions before purchase, which gave me added confidence.