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autocentarvu
8th May, 2024, 06:05 PM
Hello guys!


Please if someone can help here or give some advice?I'm going crazy with this one.


Car is Golf VI 1.4 petrol year 2009 with IAW4HV.BD.
Car came to me with IMMO activated and P1570 (ECM Disabled) in ECU and SAFE on dash LCD and windows not working and in Immobiliser B104A00 ECM Not Authorised.
I have made IMMO off and car starts and run fine but SAFE on dash and windows not working.
Than I decide to try to repair it (ECU or DASH).I have look in eeprom from ECU and see that IMMO ID and CS (last byte) is missing.
I try to write last byte from CS readed from DASH in this case E1 and some random IMMO ID (from another ECU) no luck IMMO active.
If you look on original ECU eeprom you can see that all data is there except IMMO ID and that last CS byte (maybe not needed).
In attachment is original Eeprom from ECU 95320 and one that I have try to repair also dash eeprom 24C32 (this is VDO NEC+24C32), picture from FVDI after service mode with visible data

autocentarvu
8th May, 2024, 06:15 PM
...forget to write.PIN and VIN are also right (same like in dash)

autocentarvu
8th May, 2024, 06:35 PM
Sorry twice post

yugo45
9th May, 2024, 03:53 AM
ECU has only 6 bytes , last 7th byte will be 00 and that is normal, so leave it the way it is.
SAFE is most cases has problem with key.
You need to see if cluster reading keys , Possible bad key or cluster not read key ,possible bad cluster
Go with VCDS -25-immobilizer , go to advanced Id , they type at top Id and look is it 1,2 matching current id ?If you see 0000000 for current id then cluster is bad.

autocentarvu
9th May, 2024, 09:48 AM
SOLVED
by making new key