KESS3 Slave by Alientech – professional ECU/TCU programmer in Slave model (OBD + Bench + Boot)

The KESS3 Slave is a modern, versatile chip tuning device developed by Alientech, intended for workshops and tuners working in collaboration with a Master. It combines full OBD, Bench, and Boot support in a single device, making it one of the most versatile ECU/TCU programmers on the market.

This is equipment for companies that expect reliability, high compatibility with controllers and fast work in a professional tuning environment.

---

How KESS3 works in the Slave version

The Slave version works with a Master account. You read the original ECU or TCU file, send it to the Master, receive a properly calibrated modification, and save it to the controller.

The Slave model allows you to perform a full chip tuning service without manually editing the maps. This is a safe, fast, and ideal solution for workshops looking to introduce or expand external tuning services.

---

Key Benefits of KESS3 Slave

• ECU/TCU programmer for engines and gearboxes

• OBD, Bench and Boot modes in one device

• Support for a huge number of drivers – including less common ones

• Regular protocol and software updates

• Stable, intuitive work environment

• Compact, durable design designed for workshop use

• Possibility of cooperation with a professional Master and access to ready-made, verified files

• Broad brand coverage, including many models from VAG, BMW, Mercedes, PSA, Ford, FCA and others

---

KESS3 Features and Capabilities

• ECU/TCU reading and writing in OBD, Bench and Boot modes

• Controller detection and access to the online protocol database

• Supports both popular engine ECUs and advanced automatic transmission controllers

• Possibility of carrying out services: Stage 1, Stage 2, Eco, DPF OFF, EGR OFF, GPF OFF, AdBlue OFF, Pop&Bang and many others (depending on the Master's capabilities)

• Fast read and write times while maintaining a high level of data security

---

Who is KESS3 Slave intended for?

• for workshops that regularly perform ECU and TCU modifications

• for tuners who work in the file outsourcing model

• for companies that want to expand their offer with professional chip tuning without learning mapping

• for users who need one universal device for most brands

• for new tuning workshops that want to introduce a full commercial service in a short time

The Slave model is particularly cost-effective for those who want to ensure high quality of service while minimizing the technical risks associated with binary editing.

---

Why workshops choose KESS3 Slave

KESS3 offers a wide list of supported controllers, regular updates, and the ability to work in all relevant modes: OBD, Bench, and Boot. In practice, this means the device will support most vehicles encountered in a typical workshop.

Connecting to Master guarantees access to calibrated and secure modifications, improving service quality and reducing the risk of complaints. It also allows workshops and tuners to quickly implement tuning without the need for specialized map editing knowledge.

---

FAQ

Is the KESS3 Slave suitable for beginner tuners?
Yes. The device is one of the simplest and safest to use, provided it is operated by an experienced technician.

Does KESS3 support TCUs (gearboxes)?
Yes. KESS3 allows you to work with many automatic transmission controllers in OBD/OBD VR/Bench/Boot modes.

Does KESS3 Slave have any limitations compared to the Master version?
The Slave version doesn't allow for standalone file editing; however, it utilizes the device's full hardware capabilities. The only difference is in file manipulation.

Is it possible to upgrade KESS3 from Slave to Master?
Yes, the manufacturer allows you to upgrade to the Master version after paying the difference.

Does KESS3 have a subscription?
It requires protocol licensing like other Alientech devices, but the update model is predictable and supported by the manufacturer.