New Key Immobilizer light on Magnetti Mareli Passat

[tiguan]

I have a Passat 3B 1997 petrol. Instrument Cluster Magnetti Mareli

car will not start, I programmed a new key,
Immobilizer light goes out.car start normal.

after 10min going Immobilizer light on, program everything is ok again
until after 10 min waiting lose again the code

What is going on here, thanks for your advice

[dimitar]

cluster problem

[tiguan]

Ok, also knows where the problem is. eeprom dump problem

[DiagExpert]

cluster defective solution replace it or make immo off the ECU!

[tiguan]

IMMO OFF this is possible at this ECU
ECU= Component: 1,6l R4/2V SIMOS HS D05