humboldt421
31st August, 2018, 08:21 AM
Hello and thank you for reading my thread, I am pretty new at this whole thing but I am here from necessity, I have lost all the keys for my 2002 Prius. What I have done so far is this, I have had a new key made from the dealership, it is an rfid key that is not paired to the car yet. Then I took apart the immo ecu and checked all the 8 pin soic parts on the board, one was a 93lc66. I removed this and soldered it to an adapter and used a usb programmer to read the contents of this chip. Now I have this chip and I can write to it and read from it. I have the dump posted here and I don't know what offsets are what. It doesn't appear to look like the examples I found online. From what I understand I need to set the field for the key count to 00 and I need to FF out all the places where the key hashes where stored and then set a particular off set with some value that tells the ECU to go in to programming mode and then I can use the car to program my new key to the now blank immo ecu.
What I think I need :
The offsets for the key hash.
The offsets for the key count.
The magic value and location for the 'virgin' flag to be set in the immo eeprom
Am I on the right track?
What I think I need :
The offsets for the key hash.
The offsets for the key count.
The magic value and location for the 'virgin' flag to be set in the immo eeprom
Am I on the right track?