ETK-S6.0 - User’s Guide
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ETAS
ETK Configuration
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Key Code
The microcontrollers are equipped with a protection mechanism that
allows access via JTAG H-UDI only if the right key code is used by the
ETK. The key code can be specified within the "ETK Configuration
Tool" window "ETK Hardware".
We recommend to program the ECU with "0xFFFF FFFF FFFF FFFF" as
key code. In this case the ECU accepts any key code.