Description
2012 Jeep Grand Cherokee 3.6L ECM / ECU VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Jeep Grand Cherokee 3.6L 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 vehicles 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
Logan Campbell –
Installed the ECM in my 2012 Jeep with zero hassle—totally plug and play, and it fired right up. Super fast delivery, too!
Cameron Watson –
I was a bit nervous about replacing the ECM on my 2012 Jeep Grand Cherokee, but this unit made the whole process so smooth. It arrived quickly and everything about the installation was straightforward—just plug it in and you’re good to go. My Jeep started up immediately without any hiccups, and all the systems are running perfectly. I really appreciated the clear instructions and how true to plug-and-play this part really was. It saved me a ton of time and hassle compared to what I expected. Definitely recommend this if you want a hassle-free fix!
Jordan Green –
The ECM arrived quickly and was exactly as described, already programmed for my 2012 Jeep Grand Cherokee. Installation was straightforward—just plugged it in and it worked perfectly without any additional coding. I appreciated the helpful support team who answered my few questions promptly. This replacement made my Jeep run smoothly again, definitely worth the investment.