The Alientech KESS3 Slave – Marine & PWC Bench-Boot Protocol Activation enables Bench and Boot mode communication protocols for marine engines and personal watercraft (PWC) on the Alientech KESS3 Slave platform. This product is a software protocol activation only and does NOT include the KESS3 hardware device.

This activation allows professional marine service and tuning workshops operating in Slave mode to perform advanced ECU read and write operations directly on the bench or in boot mode, making it possible to access secured or locked ECUs that cannot be programmed via OBD. All operations are carried out within a Master–Slave tuning configuration, with the protocol permanently linked to the registered KESS3 Slave unit.

Key Features

  • Activates Bench and Boot protocols for marine engines and PWCs (Slave version)

  • Enables advanced ECU read/write operations outside the vehicle

  • Supports secured and locked ECUs not accessible via OBD

  • Designed for Master–Slave tuning environments

  • Permanent protocol activation (no expiration)

  • Fully integrated with Alientech KESS3 software

  • Requires Alientech KESS3 Slave hardware (not included)

  • Intended for professional marine service and tuning applications

Important Notes

  • This product does NOT include the KESS3 device

  • Requires a registered Alientech KESS3 Slave tool

  • Operates exclusively in Slave mode under a Master account

  • Activation is locked to a single KESS3 unit and is non-transferable

  • ECU and vehicle compatibility depends on Alientech protocol coverage

  • Non-refundable once activated

System Requirements

  • Alientech KESS3 Slave hardware (sold separately)

  • Windows-based PC

  • Active internet connection for activation and synchronization

What’s Included

  • 1× KESS3 Slave – Marine & PWC Bench-Boot Protocol Activation (Digital Activation)