AutoTuner MASTER ProgrammerAutoTuner Master is a professional device for reading and writing ECU engine control units and TCU automatic transmission controllers. It is designed for car workshops, electronics specialists, tuners and companies involved in diagnosing and repairing control units.
The programmer supports OBD, Bench and Boot methods. It lets you perform standard operations via the diagnostic port, work with the control unit outside the vehicle, and gain direct access to its memory after opening the housing.
The Master version gives you access to unencrypted ECU and TCU binary files. You can analyse them yourself in programs such as WinOLS or StageX, work with a file provider of your choice, or develop your own calibrations.
The Master version reads files in a format that allows them to be analysed and modified. They are not encrypted or tied to a single external Master device.
AutoTuner does not require an annual licence renewal. Software updates and new protocols released by the manufacturer are free of charge.
AutoTuner supports the three main methods of programming control units. This lets you choose the connection method to suit the ECU or TCU design and the type of operation being performed.

In Bench mode, the control unit is removed from the vehicle, but its housing usually does not need to be opened. The connection is made via the external pins of the ECU or TCU using a universal cable.
The AutoTuner software shows the connection procedure, the required accessories and the pin layout. Illustrated instructions reduce the risk of making mistakes while setting up the workstation.
Bench mode can be used when reading or writing via OBD is not available, or when a given operation requires a direct connection to the control unit.

The device is covered by a five-year manufacturer's warranty. Users also get access to technical support for installation and everyday operation of the programmer.
AutoTuner supports the three main methods of programming control units. This lets you choose the connection method to suit the ECU or TCU design and the type of operation being performed.

The range of functions depends on the control unit and the supported protocol. The programmer may allow you to:
Full read is not available for every control unit and every method. Sometimes the software only provides the calibration area or the original file downloaded from the server.
The AutoTuner software is designed to minimise the time needed to prepare a vehicle for programming.
The AutoTuner software is designed to minimise the time needed to prepare a vehicle for programming.
Users have access to, among other things:
💡 a vehicle and control unit search;
💡 illustrated step-by-step instructions;
💡 search for OBD, Bench and Boot methods;
💡 recent vehicle history;
💡 Virtual Read;
💡 automatic checksum correction;
💡 the ability to restore the control unit to its factory version.
Have questions about the Autotuner programmer in the Master version? Find out what makes this diagnostic and tuning tool stand out.
SLAVE reads encrypted files that can only be modified by the assigned MASTER device. The MASTER option allows independent editing and works with any file provider.
No. The manufacturer does not charge any subscription fees or annual licences. Updates are free.
AutoTuner Master supports ECU engine control units and TCU transmission control units. The range of available operations depends on the specific control unit and protocol.
The device supports three main working methods: OBD, Bench and Boot. This lets you choose the communication method that suits the type of control unit and the planned operation.The device supports three main working methods: OBD, Bench and Boot. This lets you choose the communication method that suits the type of control unit and the planned operation.
Yes. For supported control units, the device automatically recalculates the Checksum when writing the file. This makes the work safer and shortens file preparation time.
The kit includes: the AutoTuner Master device, an OBD-II cable, cables for Bench mode, Boot accessories, a 12 V power supply, a protective case, a USB flash drive with a link to the software, and a user manual.
Before purchasing, it is best to check whether the control unit and vehicle are on the current compatibility list. This lets you make sure the chosen model will handle the operations you need.

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AutoTuner MASTER Programmer