kw1281test

VW KW1281 Protocol Test Tool

This tool can send some KW1281 (and a few KW2000) commands over a dumb serial->KKL or USB->KKL cable. If you have a legacy Ross-Tech USB cable, you can probably use that cable by installing the Virtual COM Port drivers: https://www.ross-tech.com/vag-com/usb/virtual-com-port.php Functionality includes reading/writing the EEPROMs of VW MKIV Golf/Jetta/Beetle/Passat instrument clusters and Comfort Control Modules, reading and clearing fault codes, changing the software coding of modules, performing an actuator test of various modules and retrieving the SAFE code of the Delco Premium V radio.

The tool is written in C#, targetting .NET 5.0 and runs under Windows 10 (most serial ports), macOS and Linux (macOS/Linux need an FTDI serial port and D2xx drivers). It may also run under Windows 7.

You can download a precompiled version for Windows, macOS and Linux (Raspberry Pi) from the Releases page: https://github.com/gmenounos/kw1281test/releases/

Otherwise, here's how to build it yourself:

Compiling the tool

1. You will need the .NET Core SDK, which you can find here: https://dotnet.microsoft.com/download (Click on the "Download .NET Core SDK" link and follow the instructions) or Microsoft Visual Studio (free Community Edition here: https://visualstudio.microsoft.com/vs/community/)

2. Download the source code: https://github.com/gmenounos/kw1281test/archive/master.zip and unzip it into a folder on your computer.

3. Open up a command prompt on your computer and go into the folder where you unzipped the source code. Type dotnet build to build the tool. Or, load up the project in Visual Studio and Ctrl-Shift-B.

4. You can run the tool by typing dotnet run

Usage: KW1281Test PORT BAUD ADDRESS COMMAND [args]
    PORT = COM1|COM2|etc.
    BAUD = 10400|9600|etc.
    ADDRESS = The controller address, e.g. 1 (ECU), 17 (cluster), 46 (CCM), 56 (radio)
    COMMAND =
        ActuatorTest
        ClarionVWPremium4SafeCode
        ClearFaultCodes
        DelcoVWPremium5SafeCode
        DumpCcmRom
        DumpEdc15Eeprom [FILENAME]
            FILENAME = Optional filename
        DumpEeprom START LENGTH [FILENAME]
            START = Start address in decimal (e.g. 0) or hex (e.g. $0)
            LENGTH = Number of bytes in decimal (e.g. 2048) or hex (e.g. $800)
            FILENAME = Optional filename
        DumpMarelliMem START LENGTH [FILENAME]
            START = Start address in decimal (e.g. 3072) or hex (e.g. $C00)
            LENGTH = Number of bytes in decimal (e.g. 1024) or hex (e.g. $400)
            FILENAME = Optional filename
        DumpMem START LENGTH [FILENAME]
            START = Start address in decimal (e.g. 8192) or hex (e.g. $2000)
            LENGTH = Number of bytes in decimal (e.g. 65536) or hex (e.g. $10000)
            FILENAME = Optional filename
        DumpRB8Eeprom START LENGTH [FILENAME]
            START = Start address in decimal (e.g. 66560) or hex (e.g. $10400)
            LENGTH = Number of bytes in decimal (e.g. 1024) or hex (e.g. $400)
            FILENAME = Optional filename
        GetSKC
        LoadEeprom START FILENAME
            START = Start address in decimal (e.g. 0) or hex (e.g. $0)
            FILENAME = Name of file containing binary data to load into EEPROM
        MapEeprom
        ReadFaultCodes
        ReadIdent
        ReadEeprom ADDRESS
            ADDRESS = Address in decimal (e.g. 4361) or hex (e.g. $1109)
        ReadSoftwareVersion
        Reset
        SetSoftwareCoding CODING WORKSHOP
            CODING = Software coding in decimal (e.g. 4361) or hex (e.g. $1109)
            WORKSHOP = Workshop code in decimal (e.g. 4361) or hex (e.g. $1109)
        WriteEeprom ADDRESS VALUE
            ADDRESS = Address in decimal (e.g. 4361) or hex (e.g. $1109)
            VALUE = Value in decimal (e.g. 138) or hex (e.g. $8A)

Credits

Protocol Info: https://www.blafusel.de/obd/obd2_kw1281.html
VW Radio Reverse Engineering Info: https://github.com/mnaberez/vwradio
6502bench SourceGen: https://6502bench.com/ EDC15 flashing info and seed/key algorithm: https://github.com/fjvva/ecu-tool