How to Solve ‘CLK Line Not Connected’ Problem When Trying to Read VAG MQB49 5C 5D with VVDI Multi Prog?

Problem:
When attempting to read VAG MQB49 5C/5D key data using the Xhorse Multi-Prog, the device repeatedly shows the error: “CLK line not connected.” Even after checking the wiring and confirming that the CLK line is properly connected, the issue persists.

XhorseVVDI.com‘s  Engineer Answer:
Didn’t modify the mcu cable.
To read MQB49 5C 5D key data with multiprog, you need to modify the MCU cable first.
Then try again.

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