Description
2012 Toyota 4Runner 4.0L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Toyota 4Runner 4.0L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
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:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $300 CAD / $215 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Kevin Taylor –
Perfect fit for my 2012 4Runner, installed in minutes and runs flawlessly—super impressed with the quick delivery too!
Jordan Rogers –
This ECM arrived quickly and was exactly what I needed for my 2012 Toyota 4Runner. The VIN programming saved me a lot of hassle, and installation was straightforward with no extra wiring or coding required. My truck runs perfectly now, and the whole process was way easier than I expected. Definitely recommend this to anyone looking for a reliable plug-and-play solution.
Isaac Brooks –
I was a bit nervous about replacing the ECU on my 2012 Toyota 4Runner, but this unit made the whole process surprisingly easy. It came already VIN programmed, which saved me a ton of time and hassle. Installation was straightforward—just unplug the old one and plug this in, no complicated reprogramming needed. My truck fired right up without any issues, and the performance feels just like new. Shipping was quick too, so I had my 4Runner back on the road faster than expected. Overall, a hassle-free experience that I’d recommend to anyone needing a reliable ECM replacement.
Isaac Rogers –
I was a bit nervous about replacing the ECM on my 2012 Toyota 4Runner, but this unit made the whole process surprisingly easy. It arrived quickly and was already programmed to match my VIN, so I just plugged it in without any headaches. The truck started up right away, and I didn’t have any error codes or warning lights afterward. The quality feels solid, and the fit was perfect, like it was made for my vehicle. Definitely saved me a trip to the dealership and a lot of money. Highly recommend for anyone needing a reliable ECU replacement.