Q: There is a “Unlock DME” feature in Yanhua Mini ACDP module 38 BMW BDC2 function menu. What does unlock DME mean? Does it refer to engine ECUs blocked after 2020/10?
Here is the clue.
What is Unlock DME?
If a DME is unlocked, you can rewrite immo data to the engine.
If you get a second-hand engine DME, you can install it on other cars after unlocking it.
Compatibility:
Unlock DME is available for B48/B58 engines (F chassis and G chassis) that can read engine EEPROM data by Yanhua ACDP.
Requirement:
Unlock DME function requires A504 license activation.
Operation mode:
Unlock DME is done via OBD.
Procedure:
First of all, read and back up EEPROM data from original DME first.
Read B48 EEPROM data with module 3+ B48 interface board on bench mode.
Then select “Unlock DME” function.
Connect ACDP with vehicle OBDII port.
Upload original eeprom data and follow ACDP prompts to unlock DME until completed.
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