Alientech KESS3 Master
$1 200.79
- KESS3 hardware (available in both Master and Slave versions) x1
- 1400K3ALIM power supply unit with 4 detachable international standard plugs x1
- 144300TALI battery power cable x1
- 144300KOBD OBD cable x1
- 144300T104 IDC26-10 flat ribbon cable, multi-colored x1
- 144300T105 IDC26-16 flat ribbon cable, multi-colored x1
- 144300T106 IDC26-26 flat ribbon cable, multi-colored x1
- 144300KBNC multi-pin Bench cable x1
- 144300KTER extension cable set for 144300KBNC Bench cable 26x
- carrying case x1
- 1 year
Introduction to Alientech KESS3
KESS3 is a tool for reading and writing ECU and TCU programs through three modes: OBD, Boot, and Bench. Developed based on 30 years of experience and nearly 3 years of research by Alientech, KESS3 offers powerful performance, flexibility, and an easy-to-use interface. This device is compatible with all vehicle types, including cars, motorcycles, trucks, construction equipment, agricultural machinery, and marine. It caters to both young engine enthusiasts and professional technicians, providing seamless connectivity to most engine and transmission control systems on the market.
Key Features of Alientech KESS3
Supports reading and writing files for a wide range of ECUs and TCUs
KESS3 supports reading and writing files for various vehicles such as cars, motorcycles, ATVs & UTVs, trucks, buses, construction machines, agricultural equipment, and marine.
Integrated design with three reading and writing modes in a single compact device
- OBD Mode (On-Board Diagnostic): Allows reading and writing files directly through the OBD port without opening the ECU.
- Bench Mode: Reads and writes files by directly connecting to the ECU pins without opening the ECU case.
- Boot Mode: Reads and writes ECU files through direct connections on the ECU circuit board. Boot Mode requires opening the ECU.
ECU Identification
The ECU Identification process involves reading the unique identification data stored in the vehicle’s ECU or TCU, including:
- ECU Hardware ID (HW)
- ECU Software ID (SW)
- ECU Software Update ID (SW upg)
- VIN
- Manufacturer and vehicle model information
Automatic Checksum Correction
KESS3 automatically checks and corrects checksum errors during the reading and writing process, ensuring data integrity and accuracy.
Comprehensive instructions for reading and writing files
Detailed instructions are integrated into the AlientechSuite software, accessible when selecting the communication protocol. These instructions provide information about the necessary cables and accessories, connection guidelines, and warnings to ensure proper communication with the desired ECU or TCU.
Virtual Reading
Virtual Reading allows downloading the original ECU file from Alientech’s online database. This feature is used when the ECU does not support direct reading via the OBD port (only file writing is allowed).
Recovery
If file writing fails, the ECU may enter protection mode or lose connection. The Recovery function can restore connection and rewrite or reflash the ECU, bringing it back to full functionality
Read Backup
Supported in Bench and Boot modes, Read Backup allows reading the full ECU data, including EEPROM, Flash, and Micro, ensuring a complete recovery if needed. However, this feature depends on the ECU type, as some ECUs do not allow reading Micro or EEPROM files.
Write Backup
Also supported in Bench and Boot modes, Write Backup allows writing the full ECU data, including EEPROM, Flash, and Micro, for full ECU recovery. This feature is ECU-dependent, as not all ECUs support writing Micro or EEPROM files.
ECU Cloning
This feature allows copying data from a damaged engine control unit (ECU) or transmission control unit (TCU) to another ECU of the same type and hardware version. This is available in Bench and Boot modes (some specific ECUs may require registration).
ECU Patch
This feature enables writing modified files to the ECU through OBD mode, often used to bypass or disable manufacturer protections on the ECU. In some cases, this can be done directly through OBD, while others require Bench or Boot mode by removing the control unit from the vehicle
Read Password
Allows extracting the security password from an ECU or TCU before performing tasks such as reading or writing files in Boot mode.
DTC Reading and Reset
KESS3’s DTC feature allows viewing and clearing DTCs on cars or motorcycles. Through the KESS3 EOBD connection, Alientech Suite retrieves a list of recorded error codes, helping technicians identify potential faults and damage easily.
Download Original Files
Master users with an active subscription can access Alientech’s online database to request and download original files (Original Files). These files contain all the initial ECU parameters and configurations released by the manufacturer.
Online Backup Management
This is a new feature available on the Alientech dashboard, allowing you to open, modify, disable checksum correction, and restore backup files for KESS3. It currently supports Boot and Bench modes only. You can open files with checksum issues, encode, and decode them. This feature is available for KESS3 Master versions and requires a separate subscription.
Multi-Language Support
The Alientech Suite interface supports multiple languages, including English, Italian, French, German, Spanish, Portuguese, Chinese, Polish, and Russian.
Specifications
| Specifications KESS3 | |
| Connection port | DB25 connector |
| Tyco 12 connector | |
| IDC 26 connector | |
| USB 2.0 Type B | |
| Compatible operating systems | Windows 10 and Windows 11, 32-bit or 64-bit editions |
| Minimum system requirements | + RAM: 1 GB for 32-bit OS or 2 GB for 64-bit OS
+ Processor: 1 GHz or faster + Storage: 200 MB + 1 USB port + Latest version of Microsoft Edge + Internet connection + Bluetooth® V4.2 BR/EDR and Bluetooth® LE + Wi-Fi 802.11b/g/n |
| Device weight | Approx. 400g (14.11 oz) |
| Device dimensions: | Approx. 19.7x15x3H cm (7.76×5.91×1.18 in) |
| Suitcase weight (empty) | Approx. 2,75 kg (6,06 lb) |
| Suitcase weight (with tool and accessories) | Approx. 3,9 kg (8,60 lb) |
| Suitcase external dimensions | Approx. 57×14,5x42H cm (22,44×5,71×16,54 inch) |
| Power supply | |
| AC input | 100-240 V, 50/60 Hz |
| DC output | 12,0 V, 4,2 A |
| Weight | Khoảng 220 gam (7,05 oz) |
| External dimensions | Khoảng 14,3x7x6H cm |
| Environmental conditions | |
| Operation temperature range | -10°C/+50°C (14°F/122°F |
| Storage temperature range | -20°C/+70°C (-4°F/158°F) |
| Maximum operation humidity | 60% |
| Operating altitude | max 5.000 m (16.400 ft) |
| Degree of waterproofing | IP X0 |
List of Accessories
| STT | Accessory | Quantity |
| 1 | KESS3 hardware | 1 |
| 2 | Power supply 1400K3ALIM | 1 |
| 3 | Detachable international plug set | 4 |
| 4 | External battery power supply cable 144300TALI | 1 |
| 5 | USB cable 081600USB2 | 1 |
| 6 | OBD cable 144300KOBD | 1 |
| 7 | Rainbow ribbon cable IDC26-10 144300T104 | 1 |
| 8 | Rainbow ribbon cable IDC26-16 144300T105 | 1 |
| 9 | Rainbow ribbon cable IDC26-26 144300T106 | 1 |
| 10 | Multiwire cable 144300KBNC | 1 |
| 11 | Extensions 144300KTER for multiwire cable 144300KBNC | 26 |
| 12 | Suitcase | 1 |
Benefits of Using Alientech KESS3
- Improved design over K-Tag and Kess2 KESS3 comes with stronger hardware and more optimized software compared to previous versions, delivering better performance and faster processing.
- Integrated OBD, Bench, and Boot modes KESS3 combines all three reading and writing modes in one device, offering flexibility and convenience to users. You can read and write ECU file for various vehicles without the need for additional devices.
- Supports a wide range of vehicles KESS3 works with cars, motorcycles, ATVs & UTVs, trucks, buses, construction equipment, agricultural machinery, and boats.
- User-friendly interface The AlientechSuite software is easy to use, even for users without much experience
- Advanced features: In addition to professional ECU reading and writing, KESS3 supports essential tuning functions such as:
• Automatic checksum correction
• Downloading original files (Original File)
• Step-by-step ECU connection guides
Warranty Information
- 1-year warranty on KESS3 hardware.
FAQ
How to purchase Alientech KESS3?
You can purchase the Alientech KESS3 through our website: Alientech Kess3 Master
What are the differences between the Master and Slave versions?
Master users have full independence, from reading files, editing, to writing files to the ECU without any file encryption. Additionally, the Master can provide tuning services for Slave users, creating an ECU file management system and offering file decryption services for files that the Slave users have read. The Master version is designed for professionals and businesses specializing in tuning who want to establish their own Slave system.
In contrast, Slave users are dependent on their Master. Only the Master can decrypt the files that you have read. This option is recommended for technicians who are new to tuning or entering the tuning field and require support from a Master.
*Some other differences between the Master and Slave versions:
| KESS3 Master – available features and services | ||
| Feature / Service | Free of charges | Upon subscription |
| AlientechSuite software updates | ✔ | ✔ |
| Update of protocols purchased with KESS3 or activated before the subscription expiration date | ✔ | ✔ |
| Activation of new developed protocols | ✖ | ✔ |
| Virtual Reading | ✖ | ✔ |
| Bosch ECU clone – VAG group | ✖ | ✔ |
| ECU clone – other brands | ✔ | ✔ |
| Original file request | ✖ | ✔ |
| Access to the Help Desk Portal | ✔ | ✔ |
| Access to the Encoding Portal * | ✔ | ✔ |
| Access to the KESS3 Backup Management ** | ✖ | ✔ |
*Access to the Encoding Portal is reserved for organizations owning KESS3 Master tool with at least one Slave tool associated.
**Access to this service is subject to the purchase of the corresponding activation.
| KESS3 Slave – available features and services | ||
| Feature / Service | Free of charges | Upon subscription |
| AlientechSuite software updates | ✔ | ✔ |
| Update of protocols purchased with KESS3 or activated before the subscription expiration date | ✔ | ✔ |
| Activation of new developed protocols | ✖ | ✔ |
| Virtual Reading | ✖ | ✔ |
| ECU clone – all brands | ✖ | ✖ |
| Original file request | ✖ | ✖ |
| Access to the Help Desk Portal | ✔ | ✔ |
| Access to the Encoding Portal | ✖ | ✖ |
| Access to the KESS3 Backup Management | ✖ | ✖ |
Does the hardware purchase include the software?
Alientech KESS3 applies separate pricing policies for hardware and software. Therefore, when purchasing the hardware, you need to select additional software packages (protocols) that suit your ECU reading and writing needs. This provides you with the flexibility to choose the necessary features for each type of vehicle and ECU.
Below is a reference list of products that include both software and hardware:
| KESS3 MASTER | Alientech KESS3 Master hardware |
| KESS3 Master – Car – LCV OBD Protocols activation | |
| KESS3 Master – Bike – ATV & UTV OBD Protocols activation | |
| KESS3 Master – Agriculture – Truck & Buses OBD Protocols activation | |
| KESS3 Master – Marine & PWC OBD Protocols activation | |
| KESS3 Master – Car – LCV Bench-Boot Protocols activation | |
| KESS3 Master – Bike – ATV & UTV Bench-Boot Protocols activation | |
| KESS3 Master – Agriculture – Truck & Buses Bench-Boot Protocols activation | |
| KESS3 Master – Marine & PWC Bench-Boot Protocols activation |
| KESS3 SLAVE | Alientech KESS3 Slave hardware |
| KESS3 Slave – Car – LCV OBD Protocols activation | |
| KESS3 Slave – Bike – ATV & UTV OBD Protocols activation | |
| KESS3 Slave – Agriculture – Truck & Buses OBD Protocols activation | |
| KESS3 Slave – Marine & PWC OBD Protocols activation | |
| KESS3 Slave – Car – LCV Bench-Boot Protocols activation | |
| KESS3 Slave – Bike – ATV & UTV Bench-Boot Protocols activation | |
| KESS3 Slave – Agriculture – Truck & Buses Bench-Boot Protocols activation | |
| KESS3 Slave – Marine & PWC Bench-Boot Protocols activation |
Does the device require an annual update subscription? Can it still be used if not updated?
Alientech KESS3 offers an optional annual update subscription. If you choose not to renew the update package, KESS3 will still function normally for reading and writing ECU programs, without any limitations on the protocols you have previously purchased.
However, subscribing to the annual update package offers many significant benefits for users:
- Always up-to-date software: You will have access to the latest versions of the software and protocols, expanding support for the latest vehicles and ECUs on the market.
- Access to advanced features: The update package allows you to use advanced features such as Virtual Reading, DTC diagnostics, and Original File downloads.
- Bug fixes and optimizations: You will receive regular patches and software optimizations, ensuring KESS3 operates smoothly and efficiently.
- Priority technical support: Customers with an active subscription will benefit from priority, in-depth support from Alientech’s expert team. This ensures you receive fast and effective assistance, resolving any technical issues or questions regarding the KESS3 device promptly and professionally.
I own KESS v2 / K-TAG. Can I upgrade to KESS3?
We have designed an attractive trade-in program specifically for customers who own KESSv2 or K-TAG. When you upgrade and replace your KESSv2 and/or K-TAG with KESS3, you will receive an exclusive discount on the new KESS3 configuration. Discover the great discounts available just for you!
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Master Activation
Introduction to KESS3 Master - Car - LCV OBD Protocols Activation
The KESS3 Master - Car - LCV OBD Protocols Activation is an activated software package for users who own the Alientech KESS3 Master device. This activation allows users to read and write files via the OBD mode on passenger cars and light commercial vehicles (LCVs).
With this option, users can easily read and write flash files quickly through the vehicle’s OBD2 port without needing to remove the ECU from the vehicle. Connecting via the OBD2 port allows for a fast and easy flash file reading and writing process, convenient for both professional technicians and beginners. This also minimizes the risk of damaging the ECU.

List of Supported Vehicles
The Car - LCV OBD Protocols Activation package for the KESS3 Master device supports more than 100 passenger car and light commercial vehicle (LCV) brands, covering numerous vehicle models and various types of ECUs. This is a comprehensive activation package, allowing users to access and modify ECU data across a wide range of vehicles from top manufacturers worldwide.
To look up detailed information on supported vehicles and ECU types for the KESS3 Master - Car - LCV OBD Protocols Activation package, you can visit the official Alientech website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
On this page, you can:
- Search by vehicle brand: Select a specific car manufacturer to view the list of supported models.
- View detailed ECU information: Learn about the types of ECUs that KESS3 Master supports, helping you identify its read and write capabilities through the OBD mode.
- Stay updated with the latest information: Alientech regularly updates this list, ensuring you always have the latest details on supported vehicles and ECUs.
This lookup page will help you easily determine if the KESS3 Master supports the vehicle model and ECU type you need to work on, providing maximum support in your research and operations.

Intended Users
The KESS3 Master - Car - LCV OBD Protocols Activation package is designed for Alientech KESS3 Master owners and is particularly suited for:
- Beginners in the tuning industry: Individuals who need a tool to read and write files on passenger cars via the OBD mode.
- Automotive repair and diagnostics technicians: Professionals who need to read and write flash files from a faulty ECU to a new one.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters. They may also need to deactivate certain systems, like DPF, EGR, or SCR, making this package an ideal, quick solution by allowing file access directly via OBD.
- Automotive service centers and garages: Facilities that handle a wide range of vehicles. This activation allows these centers to easily read and write ECU data on various passenger and light commercial vehicles, improving service efficiency and expanding options for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via OBD. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
Introduction to KESS3 Master – Bike – ATV & UTV OBD Protocols activation
KESS3 Master – Bike – ATV & UTV OBD Protocols Activation is an activated software package for users who own the Alientech KESS3 Master device. This activation package allows users to read and write files via the OBD port on various types of vehicles, including motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles).
With this option, users can easily and quickly read and write flash files through the vehicle’s OBD2 port without the need to remove the ECU. The OBD2 connection enables a fast and straightforward file read-and-write process, making it convenient for both professional technicians and beginners. Additionally, it reduces the risks of ECU damage, ensuring safer tuning and adjustments.

List of Supported Vehicles
KESS3 Master – Bike – ATV & UTV OBD Protocols Activation package for the KESS3 Master device supports more than 50 motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) brands, covering numerous vehicle models and various types of ECUs. This is a comprehensive activation package, allowing users to access and modify ECU data across a wide range of vehicles from top manufacturers worldwide.
To look up detailed information on supported vehicles and ECU types for the KESS3 Master – Bike – ATV & UTV OBD Protocols Activation package, you can visit the official Alientech website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
On this page, you can:
- Search by vehicle brand: Select a specific car manufacturer to view the list of supported models.
- View detailed ECU information: Learn about the types of ECUs that KESS3 Master supports, helping you identify its read and write capabilities through the OBD mode.
- Stay updated with the latest information: Alientech regularly updates this list, ensuring you always have the latest details on supported vehicles and ECUs.
This lookup page will help you easily determine if the KESS3 Master supports the vehicle model and ECU type you need to work on, providing maximum support in your research and operations.
Intended Users
KESS3 Master – Bike – ATV & UTV OBD Protocols Activation package is designed for Alientech KESS3 Master owners and is particularly suited for:
- Beginners in the tuning industry: Individuals who need a tool to read and write files on motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) via the OBD mode.
- Automotive repair and diagnostics technicians: Professionals who need to read and write flash files from a faulty ECU to a new one.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters quick solution by allowing file access directly via OBD.
- Automotive service centers and garages: Facilities that handle a wide range of vehicles. This activation allows these centers to easily read and write ECU data on various passenger and light commercial vehicles, improving service efficiency and expanding options for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via OBD. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
Introduction to KESS3 Master - Agriculture - Truck & Buses OBD Protocols activation
KESS3 Master - Agriculture - Truck & Buses OBD Protocols activation is an activated software package for users who own the Alientech KESS3 Master device. This activation package allows users to read and write files via the OBD port on various types of vehicles, including Agriculture, Truck & Buses.
With this option, users can easily and quickly read and write flash files through the vehicle’s OBD2 port without the need to remove the ECU. The OBD2 connection enables a fast and straightforward file read-and-write process, making it convenient for both professional technicians and beginners. Additionally, it reduces the risks of ECU damage, ensuring safer tuning and adjustments.
List of Supported Vehicles


KESS3 Master - Agriculture - Truck & Buses OBD Protocols activation package for the KESS3 Master device supports more than 200 Agriculture, Truck & Buses brands, covering numerous vehicle models and various types of ECUs. This is a comprehensive activation package, allowing users to access and modify ECU data across a wide range of vehicles from top manufacturers worldwide.
To look up detailed information on supported vehicles and ECU types for the KESS3 Master - Agriculture - Truck & Buses OBD Protocols activation package, you can visit the official Alientech website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
On this page, you can:
- Search by vehicle brand: Select a specific car manufacturer to view the list of supported models.
- View detailed ECU information: Learn about the types of ECUs that KESS3 Master supports, helping you identify its read and write capabilities through the OBD mode.
- Stay updated with the latest information: Alientech regularly updates this list, ensuring you always have the latest details on supported vehicles and ECUs.
This lookup page will help you easily determine if the KESS3 Master supports the vehicle model and ECU type you need to work on, providing maximum support in your research and operations.

Intended Users
KESS3 Master - Agriculture - Truck & Buses OBD Protocols activation package is designed for Alientech KESS3 Master owners and is particularly suited for:
- Beginners in the tuning industry: Individuals who need a tool to read and write files on Agriculture, Truck & Buses via the OBD mode.
- Automotive repair and diagnostics technicians: Professionals who need to read and write flash files from a faulty ECU to a new one.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters quick solution by allowing file access directly via OBD.
- Automotive service centers and garages: Facilities that handle a wide range of vehicles. This activation allows these centers to easily read and write ECU data on various passenger and light commercial vehicles, improving service efficiency and expanding options for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via OBD. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
Introduction to Master - Marine & PWC OBD Protocols Activation
KESS3 Master - Marine & PWC OBD Protocols Activationis an activated software package for users who own the Alientech KESS3 Master device. This activation package allows users to read and write files via the OBD port on various types of vehicles, including Marine & PWC.
With this option, users can easily and quickly read and write flash files through the vehicle’s OBD2 port without the need to remove the ECU. The OBD2 connection enables a fast and straightforward file read-and-write process, making it convenient for both professional technicians and beginners. Additionally, it reduces the risks of ECU damage, ensuring safer tuning and adjustments.
List of Supported Vehicles

KESS3 Master - Marine & PWC OBD Protocols Activation package for the KESS3 Master device supports Marine & PWC brands, covering numerous vehicle models and various types of ECUs. This is a comprehensive activation package, allowing users to access and modify ECU data across a wide range of vehicles from top manufacturers worldwide.
To look up detailed information on supported vehicles and ECU types for the KESS3 Master - Marine & PWC OBD Protocols Activation package, you can visit the official Alientech website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
On this page, you can:
- Search by vehicle brand: Select a specific car manufacturer to view the list of supported models.
- View detailed ECU information: Learn about the types of ECUs that KESS3 Master supports, helping you identify its read and write capabilities through the OBD mode.
- Stay updated with the latest information: Alientech regularly updates this list, ensuring you always have the latest details on supported vehicles and ECUs.
This lookup page will help you easily determine if the KESS3 Master supports the vehicle model and ECU type you need to work on, providing maximum support in your research and operations.

Intended Users
KESS3 Master - Marine & PWC OBD Protocols Activation package is designed for Alientech KESS3 Master owners and is particularly suited for:
Beginners in the tuning industry
Individuals who need a tool to read and write files on Marine & PWC via the OBD mode.
Automotive repair and diagnostics technicians
Professionals who need to read and write flash files from a faulty ECU to a new one.
Tuning professionals
Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters quick solution by allowing file access directly via OBD.
Automotive service centers and garages
Facilities that handle a wide range of vehicles. This activation allows these centers to easily read and write ECU data on various passenger and light commercial vehicles, improving service efficiency and expanding options for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via OBD. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
Introduction to KESS3 Master - Car - LCV Bench-Boot Protocols Activation
KESS3 Master - Car - LCV Bench-Boot Protocols Activation is a specialized software package designed specifically for users who own the Alientech KESS3 Master device. This activation package allows users to accurately read and write files through Bench and Boot mode (open ECU) on passenger cars and light commercial vehicles (LCVs).
With this option, you can easily read and write files through Bench-Boot mode, allowing direct access to the ECU's memory (including Micro, Flash, and EEPROM). This direct access not only ensures higher accuracy but also provides more comprehensive data compared to reading through the OBD method.
The Bench-Boot method is particularly useful for complex ECUs, especially modern ECUs with high-level anti-copy and anti-tamper protection, making it inaccessible through OBD mode. Notably, using Bench-Boot also facilitates easy recovery of original data in the event of any interruptions during file reading or writing, ensuring the integrity and safety of the ECU.
List of Supported Vehicles

The KESS3 Master - Car - LCV Bench-Boot Protocols Activation package for the KESS3 Master device supports a wide range of passenger cars and light commercial vehicles (LCVs), covering numerous vehicle models and various types of ECUs. This comprehensive activation package provides users with the capability to access and manipulate ECU data across passenger cars and light commercial vehicles (LCVs) from many of the world's major manufacturers.
To look up information about the passenger cars and light commercial vehicles (LCVs) models and ECU types supported by KESS3 Master - Car - LCV Bench-Boot Protocols Activation, you can visit Alientech’s official website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
Here, you can:
- Search by vehicle brand: Choose a specific car brand to see the supported models.
- View detailed ECU information: Look up the specific ECU types that KESS3 Master supports, giving you insight into its direct read and write capabilities through Bench-Boot mode.
- Stay updated with the latest information: This list is regularly updated by Alientech, ensuring you always have the most current details on supported vehicles and ECUs.
This lookup page will help you easily determine if KESS3 Master supports the vehicle model and ECU type you need to work on, maximizing your work efficiency.

Intended Users
KESS3 Master - Car - LCV Bench-Boot Protocols Activation package is an option for customers who own the Alientech KESS3 Master device. This activation package is ideal for the following customer groups:
- Beginners in the tuning industry: Those who are new to the tuning field and seek a device capable of reading and writing files specifically for passenger cars and light commercial vehicles (LCVs) through Bench-Boot mode..
- Automotive repair and diagnostics technicians: Professionals who work with passenger cars and light commercial vehicles (LCVs) needing to read and write files from faulty ECUs to new ones for replacement purposes.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters.
- Automotive service centers and garages: Facilities that serve a wide range of vehicles. Utilizing this activation package allows service centers to read and write files on ECUs for various passenger cars and light commercial vehicles (LCVs), helping to improve efficiency and diversify service offerings for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via Bench-Boot mode. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
I. Introduction to KESS3 Master - Bike - ATV & UTV Bench - Boot Protocols Activation
KESS3 Master - Bike - ATV & UTV Bench - Boot Protocols Activation is a specialized software package designed specifically for users who own the Alientech KESS3 Master device. This activation package allows users to accurately read and write files through Bench and Boot mode (open ECU) on motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles).
With this option, you can easily read and write files through Bench-Boot mode, allowing direct access to the ECU's memory (including Micro, Flash, and EEPROM). This direct access not only ensures higher accuracy but also provides more comprehensive data compared to reading through the OBD method.
The Bench-Boot method is particularly useful for complex ECUs, especially modern ECUs with high-level anti-copy and anti-tamper protection, making it inaccessible through OBD mode. Notably, using Bench-Boot also facilitates easy recovery of original data in the event of any interruptions during file reading or writing, ensuring the integrity and safety of the ECU.

II. List of Supported Vehicles
KESS3 Master - Bike - ATV & UTV Bench - Boot Protocols Activation package for the KESS3 Master device supports a wide range of motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles), covering numerous vehicle models and various types of ECUs. This comprehensive activation package provides users with the capability to access and manipulate ECU data across motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) from many of the world's major manufacturers.
To look up information about the motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) models and ECU types supported by KESS3 Master - Bike - ATV & UTV Bench - Boot Protocols Activation, you can visit Alientech’s official website at the following link:Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
Here, you can:
- Search by vehicle brand: Choose a specific car brand to see the supported models.
- View detailed ECU information: Look up the specific ECU types that KESS3 Master supports, giving you insight into its direct read and write capabilities through Bench-Boot mode.
- Stay updated with the latest information: This list is regularly updated by Alientech, ensuring you always have the most current details on supported vehicles and ECUs.
This lookup page will help you easily determine if KESS3 Master supports the vehicle model and ECU type you need to work on, maximizing your work efficiency.

III. Intended Users
KESS3 Master - Bike - ATV & UTV Bench - Boot Protocols Activation package is an option for customers who own the Alientech KESS3 Master device. This activation package is ideal for the following customer groups:
- Beginners in the tuning industry: Those who are new to the tuning field and seek a device capable of reading and writing files specifically for motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) through Bench-Boot mode..
- Automotive repair and diagnostics technicians: Professionals who work with motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) needing to read and write files from faulty ECUs to new ones for replacement purposes.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters.
- Automotive service centers and garages: Facilities that serve a wide range of vehicles. Utilizing this activation package allows service centers to read and write files on ECUs for various motorcycles (Bike), ATVs (All-Terrain Vehicles), and UTVs (Utility Task Vehicles) helping to improve efficiency and diversify service offerings for customers.
IV. Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via Bench-Boot mode. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
Introduction to KESS3 Master- Agriculture - Truck & Buses Bench - Boot Protocols Activation
KESS3 Master- Agriculture - Truck & Buses Bench - Boot Protocols Activation is a specialized software package designed specifically for users who own the Alientech KESS3 Masterdevice. This activation package allows users to accurately read and write files through Bench and Boot mode (open ECU) on Agriculture, Truck & Buses.
With this option, you can easily read and write files through Bench-Boot mode, allowing direct access to the ECU's memory (including Micro, Flash, and EEPROM). This direct access not only ensures higher accuracy but also provides more comprehensive data compared to reading through the OBD method.
The Bench-Boot method is particularly useful for complex ECUs, especially modern ECUs with high-level anti-copy and anti-tamper protection, making it inaccessible through OBD mode. Notably, using Bench-Boot also facilitates easy recovery of original data in the event of any interruptions during file reading or writing, ensuring the integrity and safety of the ECU.
List of Supported Vehicles

KESS3 Master- Agriculture - Truck & Buses Bench - Boot Protocols Activation package for the KESS3 Master device supports a wide range of Agriculture, Truck & Buses, covering numerous vehicle models and various types of ECUs. This comprehensive activation package provides users with the capability to access and manipulate ECU data across Agriculture, Truck & Buses from many of the world's major manufacturers.
To look up information about the Agriculture, Truck & Buses models and ECU types supported by KESS3 Master- Agriculture - Truck & Buses Bench - Boot Protocols Activation, you can visit Alientech’s official website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
Here, you can:
- Search by vehicle brand: Choose a specific car brand to see the supported models.
- View detailed ECU information: Look up the specific ECU types that KESS3 Master supports, giving you insight into its direct read and write capabilities through Bench-Boot mode.
- Stay updated with the latest information: This list is regularly updated by Alientech, ensuring you always have the most current details on supported vehicles and ECUs.
This lookup page will help you easily determine if KESS3 Master supports the vehicle model and ECU type you need to work on, maximizing your work efficiency.
Intended Users
KESS3 Master- Agriculture - Truck & Buses Bench - Boot Protocols Activation package is an option for customers who own the Alientech KESS3 Master device. This activation package is ideal for the following customer groups:
- Beginners in the tuning industry: Those who are new to the tuning field and seek a device capable of reading and writing files specifically for Agriculture, Truck & Buses through Bench-Boot mode..
- Automotive repair and diagnostics technicians: Professionals who work with Agriculture, Truck & Buses needing to read and write files from faulty ECUs to new ones for replacement purposes.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters.
- Automotive service centers and garages: Facilities that serve a wide range of vehicles. Utilizing this activation package allows service centers to read and write files on ECUs for various Agriculture, Truck & Buses helping to improve efficiency and diversify service offerings for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via Bench-Boot mode. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
Introduction to KESS3 Master - Marine & PWC OBD Protocols Activation
KESS3 Master - Marine & PWC OBD Protocols Activation is a specialized software package designed specifically for users who own the Alientech KESS3 Master device. This activation package allows users to accurately read and write files through Bench and Boot mode (open ECU) on various marine engines and personal watercraft (PWC).
With this option, you can easily read and write files through Bench-Boot mode, allowing direct access to the ECU's memory (including Micro, Flash, and EEPROM). This direct access not only ensures higher accuracy but also provides more comprehensive data compared to reading through the OBD method.
The Bench-Boot method is particularly useful for complex ECUs, especially modern ECUs with high-level anti-copy and anti-tamper protection, making it inaccessible through OBD mode. Notably, using Bench-Boot also facilitates easy recovery of original data in the event of any interruptions during file reading or writing, ensuring the integrity and safety of the ECU.
List of Supported Vehicles

The KESS3 Master - Marine & PWC Bench-Boot Protocols activation package for the KESS3 Master device supports a wide range of marine engines and watercraft, covering numerous vehicle models and various types of ECUs. This comprehensive activation package provides users with the capability to access and manipulate ECU data across marine engines from many of the world's major manufacturers.
To look up information about the marine engine models and ECU types supported by KESS3 Master - Marine & PWC Bench-Boot Protocols activation, you can visit Alientech’s official website at the following link:
Supported Vehicles List by Alientech KESS3
https://www.alientech-tools.com/vehicles/
Here, you can:
- Search by vehicle brand: Choose a specific car brand to see the supported models.
- View detailed ECU information: Look up the specific ECU types that KESS3 Master supports, giving you insight into its direct read and write capabilities through Bench-Boot mode.
- Stay updated with the latest information: This list is regularly updated by Alientech, ensuring you always have the most current details on supported vehicles and ECUs.
This lookup page will help you easily determine if KESS3 Master supports the vehicle model and ECU type you need to work on, maximizing your work efficiency.

Intended Users
KESS3 Master - Marine & PWC Bench-Boot Protocols activation package is an option for customers who own the Alientech KESS3 Master device. This activation package is ideal for the following customer groups:
- Beginners in the tuning industry: Those who are new to the tuning field and seek a device capable of reading and writing files specifically for marine engines and watercraft through Bench-Boot mode..
- Automotive repair and diagnostics technicians: Professionals who work with marine engines and watercraft needing to read and write files from faulty ECUs to new ones for replacement purposes.
- Tuning professionals: Experts focused on enhancing vehicle performance, such as increasing engine power, improving fuel efficiency, or adjusting engine and drivetrain parameters.
- Automotive service centers and garages: Facilities that serve a wide range of vehicles. Utilizing this activation package allows service centers to read and write files on ECUs for various marine engines and watercraft, helping to improve efficiency and diversify service offerings for customers.
Subscription Period
Once activated, the protocol can be used immediately and includes one year of free updates. During this period, users will receive the latest updates from Alientech, including added support for new vehicle models or ECU improvements. After the first year, users have the option to renew the update subscription annually to continue receiving updates. This ensures their device always has access to the latest protocols and functionality for the newest vehicle models and ECUs.
If the user decides not to renew the update subscription, the device will still operate with all previously available ECU read and write functions via Bench-Boot mode. However, they will no longer receive new updates, meaning the device will not support any new ECUs or features added after the subscription expires.
DynoDrive Activation
Introduction to Alientech DynoDrive
DynoDrive is a modern, exclusive feature of Alientech Suite and KESS3, allowing you to measure and test vehicle performance during real driving conditions.

By connecting through the OBD port and collecting data from the integrated GPS, DynoDrive provides power and torque data for the vehicle. You can export and store these values for easy comparison and tracking over time.
With DynoDrive, you can perform vehicle tests directly on the road without needing additional specialized equipment. This is a fantastic opportunity to assess the vehicle's real-world performance and verify the effectiveness of remapping. DynoDrive is a powerful tool to enhance your service quality, providing customers with reliable and accurate performance metrics. It helps you showcase the value of your work with modern and easy-to-use technology.
DynoDrive does not require a long-term subscription and can be activated directly on the KESS3 device, whether it’s a Master or Slave version, independent of any other features already present on the device.
Benefits of Using Alientech DynoDrive

Activation through Alientech Suite
You can buy the DynoDrive application at any time, directly from Alientech Suite. With a guided and intuitive process, you can activate DynoDrive and use the function immediately: simply select the vehicle on which the test will be performed, set the necessary data for the calculation, and launch the test.

Calculation Accuracy
The accuracy and repeatability of performance calculation are guaranteed by the pairing of the technology that KESS3 uses for communication with the vehicle (via OBD) and GPS acquisition. Thanks to this system, DynoDrive allows for precise calculation of the vehicle’s position throughout the test, recording both the acceleration and deceleration phases for precise calculation of the dissipated power as well.
Quick and Customized Parameter Selection
DynoDrive allows for customizing parameters to achieve calculation precision as close to reality as possible. You can input vehicle data such as: vehicle and passengers’ mass (including any tools and luggage) and fuel level. Additionally, you can choose how to conduct the test by setting the starting engine RPM (1500/2000 rpm) and the gear in which you wish to perform the test (3rd/4th), to make the best use of available space and work in complete safety. All power test operations must be carried out only on a closed circuit or on a road not open to the public.

Test Repeatability
With DynoDrive, you can repeat the test countless times, comparing the data from each individual test. Despite atmospheric factors, such as external temperature, potentially influencing the test result, you can repeat the test under the same conditions, one after another. This ensures the neutrality of the environmental factor: the data depend exclusively on the vehicle.

Data Comparison and Sharing
DynoDrive provides a downloadable and shareable report of torque and power data. At the end of the test, the Dashboard automatically stores the torque and power values. In addition to numerical data, DynoDrive provides Cartesian graphs that can be compared by overlaying them to easily discern and compare curve differences at a glance. The software allows for comparing up to 3 tests simultaneously. To facilitate consultation, different colors and styles have been assigned to the curves of individual tests. But that’s not all: the values along with the graphs recorded in Dashboard can be easily exported in a .PDF sheet, that can be shared with the customer to verify the effectiveness of the intervention or to meet their desires

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