Technical code box key/emergency start code recovery

[Prawny12009]

Is the emergency start code stored in the codebox eprom and can anyone identify it (and the current key/chip codes) from this eprom read? 93cl56b

Its my understanding it is required when coding keys on a seicento (pre obd model), i only had one key with it.

cheers

 

[Prawny12009]

the original key has a #2 on the blade so assuming code2 type key? (no red key)

from what i can gather 0000-0003 is key one 0004-0007 is key two (repeated at 8000-8003 & 8004-8007) but what is the emergency start code?

autodata says upto 8 keys can be programmed i guess this would be in 4 byte intervals between 0008-100f repeated at 8008-900f, can additional rfid chips simply be added to the codebox via asprogrammer or is there a pairing procedure/keycount in the ecu?

 

[Prawny12009]

I would have liked to retain the code system and find out the emergency start code but it seems easier to just turn the immobiliser off completely and ditch the codebox all together i may simply cut pin 7 on the ecu so that it never accidentally sees the codebox ever again (in case someone plugs it back in)

i ended up buying a cheap upa_usb clone (less than a tenna on ebay) to read the hc11f1 on the iaw16fm.ed i have.

Attached are the original hc11f1 cpu dump and matching code box dump.

As soon as i can get a compatible eeprom reader sorted i will also back up the 27c512 map chip labelled

MID SK - 16FMED - -CHK E43A-

 

[ceecff]

From file "sei codebox corrected first 2 bytes.bin" code is 57822 (Delphi immo box).

 

[Prawny12009]

Cheers, much appreciated

I could always reflash the hc11f1 back again i suppose now that i've done it once.