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Title: EDC15 eeprom VIN algo - search Post by: nemitom on March 09, 2020, 10:53:50 AM Hello all,
Looking for algo for EDC15 eeprom (VIN - CRC). Can anyone help? e.g. VIN is TMBFP21U138669631 VIN to hex : 54 4D 42 46 50 32 31 55 31 33 38 36 36 39 36 33 31 CRC : "82" how to calculate crc? Thanks all Title: Re: EDC15 eeprom VIN algo - search Post by: H2Deetoo on March 10, 2020, 10:17:59 AM It is not encrypted. It is just a hexadecimal representation of ASCII characters..
Title: Re: EDC15 eeprom VIN algo - search Post by: nemitom on March 10, 2020, 11:14:14 AM I'm not saying it's encrypted. But how to calculate CRC? Title: Re: EDC15 eeprom VIN algo - search Post by: cherry on March 10, 2020, 11:36:35 AM EDC15 eeprom crc? Sure? And even if there is a checksum, i would not expect it to vin range only, but for some block.
Title: Re: EDC15 eeprom VIN algo - search Post by: nemitom on March 10, 2020, 02:39:15 PM really.... crc only VIN and Immo ID....
if not correct "crc", ecu delete vin nr. and write all "x"..... Title: Re: EDC15 eeprom VIN algo - search Post by: H2Deetoo on March 11, 2020, 01:58:49 AM Most likely the checksum is just an addition, subtraction, maybe result inversed or a XOR.
Finding the range is important. Title: Re: EDC15 eeprom VIN algo - search Post by: cherry on March 11, 2020, 07:10:24 AM 1 min google is enough to find solution for your problem. There are enough free tools for this. If you cannot find it just upload eeprom and new vin.
Title: Re: EDC15 eeprom VIN algo - search Post by: nemitom on March 11, 2020, 12:31:54 PM to cherry:
I don't want to edit the file .... I want to know how ... finding algo to H2Deetoo: I am aware of it, I was hoping that someone knows the way ... I have been solving it for a while and I have no solution .... Title: Re: EDC15 eeprom VIN algo - search Post by: cherry on March 11, 2020, 01:18:29 PM Then download some simple EDC15 tool and figure out how it works with several tests. Maybe take a look to ME7 eeprom checksum also to get a starting point of understanding, there is description in board somewhere.
Title: Re: EDC15 eeprom VIN algo - search Post by: nemitom on March 12, 2020, 05:20:15 AM Solved thanks!!
Title: Re: EDC15 eeprom VIN algo - search Post by: nyet on March 14, 2020, 06:01:04 PM Title: Re: EDC15 eeprom VIN algo - search Post by: nemitom on March 15, 2020, 03:03:34 AM Very simple.... Xor all VIN byte and one constant.... for immo id ( SKZ) is same way, just other constant....
Title: Re: EDC15 eeprom VIN algo - search Post by: H2Deetoo on March 18, 2020, 03:12:22 PM Nice!
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