Basically everything you said is wrong. Turning off the immo just allows the car to start with non matching immo. You camt disable immo in eeprom and fwiw I wouldnt even atempt to read the cluster. Those clusters are rb4 crypto clusters and if you fuck up the eeprom theres no recovory for the cluster. Also just immo offing the ecu it will start and run but your hadzord light will flash for 15 min becaise the keys not paired with the cluster Not only that but theres nothing in the ecluster that can be disabled or at leat thats publicly released. You need bootmode to disable the immo. Tje best bet is to read the skc from the eeprom of the ecu and just program the new key with the skc you retreaved
Thank you, thank you, thank you!!! It sounded good in my head and glad I actually asked.
As I was talking to another S4 owner and ready to pick up ECU/Cluster/Key's etc he said the same thing why not just get a key recut and pair it, which I will do when I get the new key.
This might be off topic, but need some thoughts -
I had previously picked up a couple of new Ebay keyfobs and had those cut for my A4, but never paired the immobilizer. I am picking up a used set of ignition, door handle/lock and key, this afternoon. My thoughts is to remove the RFID chip from the never paired keyfob put it into the used key, read the SKC with eeprom and program it.
Again, just need validation that would work (possibly).
If so I am assuming I do not need to put the ECU into bootmode to use the eeprom to read the SKC or does it need to be put into boot mode?
Thanks again!
John