Sunday, July 6, 2025

Program VAG Micronas All Keys Lost with Autel IM608

 It’s a 2014 Audi TT with blade key. Micronas system. All keys have been lost. How to program keys with Autel IM608?  How possible is it to enter service mode on bench all keys lost with micronas cluster with Autel ?

Program VAG Micronas All Keys Lost with Autel IM608

Here is the clue.

 

Way 1: 

You can use svg cable and pogo pin to put in service mode.
Or write service file to eeprom and read eeprom and immo data.

But Autel has a risk of bricking cluster via eeprom. Xhorse Vvdi seems to be better for these cars.  You need to read eeprom put in service mode with vvdi2 then program key via obd.

Original transponder: Megamos 48
Allowed transponder: Megamos 48

Data location:
Micronas CDC3217+ 24C32
Micronas CDC3297+ 24C32
Micronas CDC3272+ 24C32 (no immo data, read only 24C32)

In case of CDC3272 no need to read Micronas. It does not contains immo data, instead read only 24C32.

 

 

Way 2: 
Put the cluster back.

Because on eeprom there is no key information only on MCU and to read MCU is risky. Anyway read ecu and sniff the end 7 bit cs code and make the job. Forget the dashboard, it’s not possible really to read without working key, with working key you can read it true obd without NO.

Try read cs pin from ecu.

 

You can do OBD all keys lost with an apb112 key simulator. Autel pulls 6/7 cs from ECU, and 7th from key coil with apb112.

Get 6 bytes and get the 7th with app112, 5 min job that way.

 

Autel IM508/IM608 Find Audi A3 04-13 AKL 7th Byte via OBD

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