Yanhua ACDP Module 29 Audi Gen 5 BCM2 IMMO

Yanhua ACDP Module 29 (Audi Gen5 BCM2 IMMO) is a specialized key programming and immobilizer module used with the Yanhua ACDP system for Audi vehicles equipped with BCM2 (Gen 5) body control modules.

How it works (simple explanation)

Module 29 uses special BCM2 interface boards to:

1. Identify BCM2 type via OBD
2. Decide if data can be read via OBD or needs bench/ICP
3. Read IMMO data from BCM2 chip
4. Generate dealer key
5. Write/learn key back to vehicle
   

   Important limitations

   • It is NOT a full BCM2 dump tool (cannot always read full EEPROM/flash)
   • Some all-key-lost jobs require external sync data
   • Some BCM2 versions require removal/bench/ICP mode