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REPAIR ODOMETRE PEUGEOT 308 2014 - Printable Version

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REPAIR ODOMETRE PEUGEOT 308 2014 - jeam - 05-01-2023

Hello everyone and happy new year 2023.

 Can you help me correct the peugeot 308 2014 odometer.
Now it is at 193746 and I need 138,000KM. Thank you very much.
original 308 peugeot 2014.rar
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RE: REPAIR ODOMETRE PEUGEOT 308 2014 - volavka - 05-01-2023

(05-01-2023, 01:24 AM) jeam Wrote:  Hello everyone and happy new year 2023.

 Can you help me correct the peugeot 308 2014 odometer.
Now it is at 193746 and I need 138,000KM. Thank you very much.


RE: REPAIR ODOMETRE PEUGEOT 308 2014 - cfocosta - 10-01-2023

Hi, Folks!

Is there anyone who can help to know how to calculate the two bytes in BSI EEPROM from the files above?

Let me explain better.
1) In the original file with mileage 193746,80 km, in addresses 0x0BD8 till 0x0BFF, there are some information about mileage. See the examples:

0x00BD0: C3 FF FF FF C3 FF FF FF 00 1D 90 3C FF E2 6F C3

0x00BE0: 00 00 FE 8C 00 1D 90 3C FF E2 6F C3 00 00 FE 8C

0x00BF0: 00 1D 90 3C FF E2 6F C3 00 00 FE 8C C3 FF FF FF

For 193746,80 km, I need to multiply by 10 and I have 1937468 km.
Convert it to hexadecimal, I have: 00 1D 90 3C. I can see three times this value (red characters).
If I XOR this value with 0xFFh I have: FF E2 6F C3. I can see three times this value also (green characters).
Now my issue is: What does this value mean (value: FE 8C)? How can it be calculated (see blue characters)?

2) After the new mileage value (km = 138.000), this value was changed to 2C 0E.

3) Please, if possible, I would like to know the code of this BSI.
 
Many thanks.

Carlos Frederico Costa

RE: REPAIR ODOMETRE PEUGEOT 308 2014 - Clusters - 10-01-2023

That is the CRC for the mileage string.  Enter 00 1D 90 3C FF E2 6F C3 00 00 into calculator, input HEX/CRC-16

Result will be CRC-16/CCITT-FALSE

RE: REPAIR ODOMETRE PEUGEOT 308 2014 - cfocosta - 11-01-2023

(10-01-2023, 21:16 PM)Clusters Wrote:  That is the CRC for the mileage string.  Enter 00 1D 90 3C FF E2 6F C3 00 00 into calculator, input HEX/CRC-16

Result will be CRC-16/CCITT-FALSE

It works perfectly!

Many Thanks.

Carlos Frederico Costa