red key

[herpsuk]

hiya guys

well i remmeber any fiat weve had except the old ones had a red key, and ive seen people talking about the red key alot on here.

now i was wondering what this key did?

i aint stupid honest lol

thanks

J

 

[custard]

its used for recoding new keys to the ECU and some diagnostic work can involve it.
https://www.fiatforum.com/cinq-sei-technical/1821-red-blue-black-keys.html