KESS3
Alientech KESS3: Revolutionizing ECU and TCU Programming
The Alientech KESS3 is the latest evolution in engine and transmission control unit programming, offering seamless support for OBD, Bench, and Boot modes. Whether you're a newcomer to tuning or a seasoned mechatronic technician, the KESS3 provides an intuitive, powerful platform that adapts to your expertise and requirements.
One Tool, Three Powerful Modes
KESS3 unifies three key modes into a single compact and robust device:
OBD Mode: Communicate directly with the vehicle’s ECU through the diagnostic port for quick and convenient tuning.
Bench Mode: Access ECU data without opening or disassembling the unit.
Boot Mode: Full low-level access to microprocessors and memory for advanced operations such as ECU cloning and recovery.
You can configure the KESS3 based on your needs, making it suitable for users at all levels of experience.


Built with Next-Generation Engineering
With over 30 years of tuning experience and nearly three years of R&D behind it, the KESS3 is Alientech’s most sophisticated and reliable tool to date. Its internal architecture has been completely overhauled to harness modern electronic components and maximize performance.
Key hardware highlights include:
A next-gen microprocessor, seven times more powerful than its predecessor
Advanced I/O interfaces for reliable communications
Built-in sensors for performance monitoring
High-speed EEPROM and flash memory modules
Universal Connectivity
KESS3 supports a wide range of communication protocols:
Ethernet
FlexRay
CAN Bus
K-Line
L-Line
J1850 / J1708
Automatic protocol detection allows the tool to instantly identify the correct line, streamlining connection and ensuring safety.
Future-Ready Platform
Embedded technologies include:
GPS
Accelerometer
Bluetooth
Wi-Fi
These features position KESS3 as a forward-looking platform ready for future innovations and remote tuning capabilities.
Exceptional Performance
Faster Data Transfers: A redesigned USB controller increases file transfer speed by up to 10x.
Alientech Cloud Integration: KESS3 leverages a high-performance web infrastructure to deliver real-time updates, support, and file management.
Rugged & Practical Design
Constructed with a fiberglass shell, the KESS3 is engineered for durability and workshop resilience:
Shock- and vibration-resistant
Lightweight and ergonomic
Designed for mobile or on-site tuning



Smart, Secure Case
The KESS3 comes in a custom-designed protective case:
Military-grade durability
Secure snap locks and air-transport pressure valve
Thoughtfully organized interior with compartments for cables and power supplies
What’s Included in the Case
USB Interface Cable – Connects the KESS3 to your PC
Universal OBD Cable – Replaces older KESSv2 cables, with extended support (Honda, Volvo, Lotus, Toyota)
1400SWALIM Power Supply – Stable power delivery to ECUs during programming
144300TALI Cable – Bench power adapter
144300KBNC Cable – Bench communication cable
144300KTER Kit – BOOT and BENCH mode extension harnesses
Rainbow IDC Cables (10, 16, 26 wire) – Direct ECU board access for micro-soldering tasks


Alientech Suite: Designed for KESS3
The KESS3 is paired with an entirely redesigned software suite:
Modern Interface: A clean, intuitive dashboard with improved usability
User Experience: Custom vehicle lists, interaction history, and favorite vehicle tracking
Updated Vehicle Database: Live updates and multilingual technical instructions
Smart Search: Find your ECU or protocol in seconds
Full Support Access: Built-in ticketing and help desk integration
KESS3: The Most Versatile ECU/TCU Programming Tool on the Market From OBD remaps to advanced Boot mode ECU recovery, KESS3 offers unmatched capability in a single, powerful platform. With industry-leading performance, flexibility, and future-ready design, it stands as the tuning professional’s tool of choice.
For more information or to purchase the KESS3 get in touch and we will guide you on how to become part of the BoostCo revolution in Remapping!!