Description
2012 Nissan Maxima 3.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Nissan Maxima 3.5L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Spencer Cooper –
I ordered the VIN programmed ECM for my 2012 Nissan Maxima, and it arrived quickly with free shipping, which was a nice bonus. The plug-and-play setup made installation straightforward, and my car started right up without any issues. The quality of the unit feels solid, and the whole process was hassle-free from start to finish. I appreciated how smoothly everything went with this purchase.
Michael Collins –
I was a bit nervous about replacing the ECM on my 2012 Maxima, but this unit arrived quickly and was ready to go right out of the box. Installation was straightforward—no extra programming needed, which saved me a lot of time and hassle. The car fired up immediately and runs smoother than it has in months. I also appreciated the helpful customer service team who answered a couple of my questions promptly. Overall, a solid purchase that made a stressful repair way easier than I expected. Highly recommend to anyone needing a quick and reliable ECU replacement.
Isaac Bailey –
Received the ECU quickly and installation was straightforward with zero hassle. The unit was already programmed perfectly to my car’s VIN, making the swap seamless. Ever since the install, my Maxima runs smoothly without any errors or check engine lights. Definitely a reliable replacement part for anyone needing a quick fix.
Connor Gonzalez –
Swapped out my old ECM with this one in no time—fit perfectly and my Maxima runs smoother than ever. Super quick delivery too!
Dylan Marshall –
The plug-and-play setup made installation a breeze, and their quick responses to my questions really stood out. Shipping was super affordable too.