: Save the results as a text file. This contains your car's original coding, which is your only "undo" button if something goes wrong. Use a Battery Charger
Before you can recode certain control modules, VCDS will require a to gain "write" permission. These codes, often listed in VCDS coding PDFs, are essential for activating key modules:
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Allows windows and the sunroof to be opened or closed by holding the lock/unlock buttons on the key fob.
Long Coding is used for more complex module configurations. A long coding string looks like a long series of hexadecimal numbers (e.g., 4E8A001A0925000000000000000000000000 ). The string is broken down into (pairs of characters). Each Byte contains 8 Bits (binary 0 or 1 checkboxes).