Description
2020 Jeep Grand Cherokee 3.6L ECM / ECU VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 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
Aaron King –
I was a bit nervous ordering an ECM online, but this one exceeded my expectations. It came quickly and was truly plug and play—no complicated programming needed on my end. Once installed, my Jeep started right up and runs perfectly, just like before. The whole process was smooth, and I appreciate the clear instructions that came with it.
Matthew Hall –
Perfect fit for my 2020 Jeep Grand Cherokee, installed in minutes with zero hassle. Shipping was quick and the unit works flawlessly!
Adam Sanders –
I was a bit nervous about replacing the ECM on my 2020 Jeep Grand Cherokee, but this unit was exactly what I needed. It arrived quickly and was programmed with my VIN, so I didn’t have to worry about any complicated setup. Installation was straightforward—just plug it in and go, no extra coding required. Ever since the swap, my Jeep runs smoother and the warning lights haven’t popped back on. Overall, a hassle-free experience that saved me a lot of time and a bigger repair bill. Definitely recommend this for anyone looking to fix their ECM without the headache.