Description
2012 Jeep Grand Cherokee 5.7L ECM / ECU VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Jeep Grand Cherokee 5.7L 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
Travis Rivera –
I recently replaced the ECM on my 2012 Jeep Grand Cherokee with this unit, and I couldn’t be happier with how smoothly everything went. The module arrived quickly, and because it was already VIN programmed, installation was straightforward—no headaches or extra tuning required. After hooking it up, the Jeep fired right up without any error codes or issues. It’s like having the original system back in perfect working order. I appreciate the attention to detail and quality; this definitely made what I expected to be a complicated repair stress-free.
Owen Young –
The ECM arrived quickly and was ready to go right out of the box—installation was a breeze with no hiccups. Perfect fit for my 2012 Grand Cherokee!
Aaron Cook –
This ECM arrived quickly and was exactly as described for my 2012 Jeep Grand Cherokee. Installation was straightforward, and it worked perfectly right out of the box without any complications. I appreciated the clear instructions and the fact that it was already VIN programmed—it saved me a lot of time. Overall, a seamless experience that got my Jeep running smoothly again.