24c eprom dump mileage

[SpikZA]

Hey all

Please could some one assist me with finding the mileage in this dump or what the algorithm is? its from a volvo truck

Current mileage before it was removed is 565715.4 KM's

Regards

[Dr. Zoidberg]

mileage in 02d8 - 0317.

[clusters]

Algorithm is Rolling VDO factor 64

[SpikZA]

thank you but im lost i remember you helped me with that UD quester one with abit more explaining because im retarded.

heres how you helped me on the last one

"Mileage repeated 10 times, 052c-055d 5 bytes first four mileage inverted, last byte CS


Inverted hex to decimal/16 or hex/10 to decimal = KmX10


CS = Calculator on Byte, mileage bytes added, -1 then Not


First instance of your file (second instance is 406303.8):


0520: 00 00 00 00 00 00 00 00 00 00 00 ff 3a dd df 03
0530: 07


Hex 03dfdd3a / 10 = 03dfdd3 to decimal = 406267.5
CS (calculator set to Byte): 3a+dd+df+03 = f9 -1 = f8 Not = 07"

[jomberykaso]

friend mileage is from lines 02d8 to 0317 as Dr. Zoidberg (https://www.digital-kaos.co.uk/forums/member.php/452104-Dr-Zoidberg) says..... and algorithm used is vdo rolling factor 64 as clusters (https://www.digital-kaos.co.uk/forums/member.php/439964-clusters) says (565760/64 = 8840 converted to hex = 2288 xor FFFF = DD77 *2 = 1 BAEE, 1 + BAEE = BAEF *2 = 1 75DE, 1 + 75DE = 75DF .......)

and from line 0318 to 0323 is dec *200 converted to hex

[SpikZA]

Thank you so much for everyones time and patience! now let me see if i can wrap my brain around this.

[clusters]

Simplified: calculator on Word, dd77 RoL = baef RoL = 75df, etc.

[SpikZA]

Ok so if i have this correct 02d8 to 0317 is stored from the VDO tachograph if the clusters parameters are set to have a tacho and 0318 to 0323 if it doesnt have an external tachograph.

0318 to 0323 is the actual mileage which is displayed on this specific cluster and its setup with out a vdo tachograph.

[fabricedenice]

Hello, i have have a read of ecu witch is 24C16, i would like to know the calculation method if it's the same, it' ecu MS 6.3 from Renault truck midlum?

[eliet2000]

Hi, 24c16 = 2kb, your file = 32kb, I have my doubts that this ECU saves the mileage.

[fabricedenice]

Hi, 24c16 = 2kb, your file = 32kb, I have my doubts that this ECU saves the mileage.

Hi thanks for your reply, i checked the ODO but can't find, i open ecu and find eeprom 4C16 (similare at 24C16), but i only take file from ktag, any idea or things to do?

[eliet2000]

Hello, to read the 24C16 eeprom better an external programmer