Memory device is NEC uPD70F3556.
You can read NEC data flash and program key by OBD2 with VagTacho K+CAN with Fiat activation or with UPA-S, view connection diagram.
Expected file size is 32768 or 65536 bytes.
Software shows 5-digit PIN code.
Use original Fiat remote key with Megamos Crypto 128-bit AES ID88 transponder. Remote part is also programmed and is operating.
Programmed key must be matched with car using diagnostic device.
Vehicles equipped with this unit:
✅ Fiat:500X, Tipo, Egea
✅ Jeep:Renegade
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