Materials:
*Adapter for OBD-II diagnostics
* Car diagnostic software (such as VCDS or ODIS)
Instructions:
1. Connect to the transmission control module (TCM):
*Connect the diagnostic adapter to the vehicle’s OBD-II port.
*Run diagnostic software and connect to TCM.
2. Reading the current encoding:
* Go to function group «02 — Automatic transmission».
* Select the function «10 — Adaptation».
* Read the «00 — Encoding» field for the current value.
3. Entering a new encoding:
* Make sure the vehicle is in rest mode (park or neutral).
* Enter the new encoding in the «00 — Encoding» field.
* The new coding must be provided by the vehicle manufacturer or a reliable source.
4. Write a new encoding:
* Click the «Test» or «Record» button.
* The software will write the new encoding to the TCM.
5. Clearing the fault code memory:
* After recording a new coding, it is necessary to clear the fault code memory.
* Return to the main menu of the diagnostic program.
* Select function «01 — Electronics» (or similar).
* Select function «04 — Clear fault codes».
* Clear all fault codes.
6. Exit the diagnostic program:
* Disconnect from TCM.
* Close the diagnostic software.
7. Check:
* Start the engine and shift the gear selector to different positions.
* Make sure that the automatic transmission is working correctly and without problems.
Attention:
* Automatic transmission coding should only be performed by a qualified technician or under the guidance of an authorized dealer.
* Incorrect coding can lead to damage to the automatic transmission.
*Always use official vehicle service documentation or reliable sources when obtaining codes.