Yaris Fujitsu ecu 25020

[borysgo2]

Hello
I have custommer with the Toyota Yaris from 2000 year.
The custommer lost all keys. The ecu is Fujitsu with 25020 memory in it.

I was trying to write some 4C transponder manually but I am doing something wrong.

Transponder data:

7E 90 34 72 08 00 00 00 00 D1 BE 7E ----> in tiris format

The keys are repeated 3 times in ori dump bellow.


00 00 00 00 03 EF 85 E4 00 00 00 00 03 EF 85 E4
00 00 00 00 03 EF 85 E4 00 00 00 00 03 E4 A2 EF
00 00 00 00 03 E4 A2 EF 00 00 00 00 03 E4 A2 EF
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 03 EF 85 9C
00 00 00 00 03 EF 85 9C 00 00 00 00 03 EF 85 9C
10 10 10 03 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 FB DF 5A 69 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

I have tryed to replace the key data with:
90 34 72 08
08 72 34 90
34 90 08 72
72 08 90 34

and many other combinations and I must have doing something wrong.

Can someone guide me to correct solution please ??

Thanks

[bram380]

Transponder data:
7E 90 34 72 08 00 00 00 00 D1 BE 7E ----> in tiris format

EEPROM data:
08 72 34 90 write 3 times in address: 004~007, 00C~00F and 014~017

[borysgo2]

Thanks bram
I have tryed this byte order as my attempt no 2 but security light is still flashing.
I think there is some additional problem.
When I get it sorted I let know.

[gwee]

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