Description
2014 Nissan Quest 3.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 Nissan Quest 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



Jonah Rivera –
The plug-and-play setup was seamless, and their team answered all my questions promptly—highly recommend!
Chris Moore –
Swapped out my old ECM with this one in under 30 minutes—super easy and flawless performance right away. Highly recommend!
Leo Kelly –
I was really impressed with how straightforward the install was on this ECM/ECU. It came VIN programmed and ready to go, so I didn’t have to worry about any complicated setups or extra programming. Shipping was quick, and the part fit my 2014 Nissan Quest perfectly. It’s been running smoothly since the swap, and I’m grateful for such a hassle-free solution.