Description
2012 RAM Ram Truck 3.7L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 RAM Ram Truck 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



Harvey Nichols –
Fast shipping and plug-and-play setup made installing this ECM a breeze, and I saved a ton compared to dealer prices. The whole process was smooth and the communication top-notch.
Anthony Hudson –
I ordered the 2012 RAM 3.7L ECM and was impressed by how quickly it arrived, especially with their free shipping option. The unit was already VIN programmed, which made the installation straightforward and saved me a lot of time. Their customer service was also very responsive, answering all my questions promptly. Overall, the quality is solid, and my truck runs perfectly now.
Victor Miller –
I was a bit nervous about ordering an ECM online, but this 2012 RAM 3.7L unit arrived quickly with free shipping, which was a nice bonus. The best part was that it came VIN programmed, so installation was straightforward—just plug and play. The whole process saved me a lot of hassle since I didn’t have to worry about additional programming. Customer service was fantastic too; they answered my questions promptly and made the whole experience very smooth. My truck is running like new again, and I’m really happy with the quality of the product.
Dominic Stewart –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected. The unit was truly plug-and-play, making the installation process straightforward without any hassle. Compared to dealer prices, this service saved me a significant amount of money, and the communication throughout was very clear. Overall, a smooth experience from start to finish.
John Hudson –
Fast shipping and the ECU arrived already VIN programmed—installation was a breeze and my truck runs great again.
Nicholas Foster –
I had a great experience ordering the 2012 RAM 3.7L ECM from this seller. The unit arrived quickly with free shipping, which was a pleasant surprise. What stood out most was how professional their programming service was—everything was perfectly VIN programmed and ready to install right out of the box. They also kept me updated throughout the process, answering my questions promptly and clearly. Installation went smoothly, and my truck has been running flawlessly ever since. I’ll definitely come back here if I need another module in the future.