KESS3 Protocol Release

13 november 2026

Upgrade 3.74

New OBD and BENCH protocols for Hitachi ETC94-110N TCUs – Infiniti, Nissan and Renault.

KESS3 and Powergate: Work on the transmission control units of sports cars, premium models, SUVs and pick-ups.

With this update, KESS3 (and Powergate) expand the possibilities of working on Hitachi ETC94-110N TCUs fitted to a wide range of Infiniti, Nissan and Renault vehicles.

The new protocols allow you to read and write the TCU in OBD and BENCH mode with KESS3, choosing the most suitable connection for each operation. OBD support is also available with Powergate, enabling remote reprogramming through the customer’s device.

Coverage includes different vehicle types, from sports cars and premium saloons to SUVs and pick-ups, equipped with Nissan (3.7 V6, 5.6 V8) and Renault (2.3, 2.5, 3.0 dCi) engines characterised by high torque output.

A solution that expands your possibilities for both tuning and repair operations on automatic transmissions, allowing you to manage a wider range of applications with KESS3.

Real benefits for your workshop:

  • OBD and BENCH modes according to the requirements of each operation and working conditions.
  • Reading and writing through the diagnostic port or, with the control unit removed, directly from the TCU connector.
  • More opportunities on automatic transmissions, including remotely with Powergate.

With KESS3, you can expand your services dedicated to automatic transmissions, working on a diverse range of vehicles.
Furthermore, thanks to Powergate, you can extend your possibilities beyond the workshop, on applications supported in OBD, directly involving the end customer. And sometimes supporting both the ECU and, in this case, the TCU.

Technical focus

  • Connections: OBD, BENCH
  • TCU: Hitachi ETC94-110N
  • Production years: from 2009
  • Brands: Infiniti, Nissan, Renault

Supported vehicles

  • 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

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