Technical Bcm Fiat Bravo

[Rome1987]

Hello everyone.
I have a 2008 Fiat Bravo with Magneti Marelli BCM and after changing the immo data the fuel light started flashing and the car won't start. Does anyone know how to revive it? If I program the eeprom will it work again? And which eeprom has the immo data.
I'm attaching photos. I appreciate your help.

 

[the green vanper]

Hello,

What do you mean by 'changing the immo data'?

 

[Rome1987]

Hello,

What do you mean by 'changing the immo data'?

Hello. I had a file with other keys programmed in the same car, and with my Autel I loaded the file in the immo 2 and I was never able to access the car's BC again and it doesn't start

 

[the green vanper]

Not sure if Autel can do that...

Have you tried a rollback?

Usually adding new keys is done with MultiEcuScan or AlfaOBD. In MES, in the Body module, Adjustment tab:

The remote control and the immo are two separate functions. They are to be programmed separately

You need to have the FIAT CODE code, if you don't have one in the owner's manual, you should be able to get it from the dealership. I was given one free of charge upon proof of ownership.

I assume Autel messed with the contents of the BCM... Have you tried the old keys?

 

[Rome1987]

Not sure if Autel can do that...

Have you tried a rollback?

Usually adding new keys is done with MultiEcuScan or AlfaOBD. In MES, in the Body module, Adjustment tab:

The remote control and the immo are two separate functions. They are to be programmed separately

View attachment 462325

View attachment 462326

You need to have the FIAT CODE code, if you don't have one in the owner's manual, you should be able to get it from the dealership. I was given one free of charge upon proof of ownership.

I assume Autel messed with the contents of the BCM... Have you tried the old keys?

Yes, I have the fiat code, but with Autel I no longer have access to the BCM, there is no communication.

 

[the green vanper]

The question is if MES or AlfaOBD will be able to access the BCM now. Should have in my opinion. But cannot be sure.

 

[Rome1987]

The question is if MES or AlfaOBD will be able to access the BCM now. Should have in my opinion. But cannot be sure.

You can't do this with the BCM on the bench without being OBD

 

[the green vanper]

I assume not. Probably for such 'direct' access other tools are necessary. But if you have the car, the BCM installation should not take long. I took it once on my Ducato, it took not more than 30 minutes both ways (disconnecting and reconnecting).

 

[Rome1987]

I assume not. Probably for such 'direct' access other tools are necessary. But if you have the car, the BCM installation should not take long. I took it once on my Ducato, it took not more than 30 minutes both ways (disconnecting and reconnecting).

Yes, I have already done this, disconnecting and connecting, but the BCM is never recognized and if I connect to Autel it always says it cannot communicate with the BCM.

 

[ceecff]

Depend on what did Autel... it could have damaged engine ecu or body. First check engine ecu connection and immo status with Multiecuscan, if all ok then you could need rewrite body eeprom 95160 with donor to check if connect again and after try recode, virgin etc.

 

[Rome1987]

Depend on what did Autel... it could have damaged engine ecu or body. First check engine ecu connection and immo status with Multiecuscan, if all ok then you could need rewrite body eeprom 95160 with donor to check if connect again and after try recode, virgin etc.

Hello. Thank you very much for your help.
It communicates with the ECU and everything is ok. The problem is in the BCM.
Is it possible to write a new file in the BCM?

 

[ceecff]

Yes in eeprom.

 

[Rome1987]

Yes in eeprom.

Hello again and thank you very much.
Do you know where I can get a file to write to the eeprom?

 

[ceecff]

You writed mod file, do you have the ori eeprom backup 2kb? You can restore now. If not backup then check ecu tuning sites with your BCM p/n, in worst case buy full BCM unlocked (could need virgin engine ecu).

 

[Rome1987]

You writed mod file, do you have the ori eeprom backup 2kb? You can restore now. If not backup then check ecu tuning sites with your BCM p/n, in worst case buy full BCM unlocked (could need virgin engine ecu).

ok. thank you very much. i will check the files i have and let you know something

 

[Rome1987]

Hello everyone. After several attempts to get the BCM to work, without success.
I uploaded the file, Autel says the file was successfully uploaded, but the BCM is still dead. I tried another BCM and it died too. I'm leaving the file here. Can anyone help?
Thanks everyone

You writed mod file, do you have the ori eeprom backup 2kb? You can restore now. If not backup then check ecu tuning sites with your BCM p/n, in worst case buy full BCM unlocked (could need virgin engine ecu).