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Alientech has released Upgrade 3.74 for KESS3 and Powergate, adding OBD and bench protocols for the Hitachi ETC94-110N transmission control unit. The protocols cover Infiniti, Nissan and Renault models from 2009, including sports cars, premium saloons, SUVs and pick-ups.
Which ECUs
The unit is the Hitachi ETC94-110N, a TCU rather than an engine ECU. On KESS3 it is supported in both OBD and Bench modes, so you can read and write through the diagnostic port or, with the control unit removed, directly on the TCU connector. Powergate supports it in OBD only, which lets a remote reprogramming job go through the customer’s own device. The release does not mention boot mode and does not describe the protocols as beta. Engines covered are the Nissan 3.7 V6 and 5.6 V8, and the Renault 2.3, 2.5 and 3.0 dCi.
Cars this opens up
The source lists these models:
- Infiniti: EX, FX, G37, M30, M37, M56, Q40, Q50, Q60, Q70, QX50, QX56, QX70
- Nissan: 370Z, Armada, Fairlady Z, Frontier, NP300 Navara, Patrol, Skyline, Terra
- Renault: Alaskan
What it means
Transmission calibration is where a lot of the feel of these cars is decided. Shift speed, torque handling and how the box behaves behind a tuned engine all live in the TCU, so having a clean read and write route matters for anyone working on a Navara, Patrol, 370Z or Infiniti saloon. Having both OBD and bench routes on KESS3 gives workshops a sensible fallback if a car will not play ball through the port, and it means one tool covers a wide spread of Japanese and French applications. Check the exact model and year with us before you commit a car to the bench.
For dealers, our tools now read and write this TCU, and the file service can handle the files if you would rather not do the work in house. The full KESS3 range is on our Alientech page.
Owners can see what else is possible for their car with our tuning builder.
