Hi, please help with eeprom crc calculation after mileage mod in dump. Never had a issue with bosch ecus but siemens seems that my tools don't support. Attached org and mod, thanks!
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Thread: Sid 306 eeprom crc calculation
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12th February, 2024, 12:33 PM #1DK Veteran
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Sid 306 eeprom crc calculation
Last edited by levisdj; 12th February, 2024 at 03:44 PM.
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12th February, 2024, 04:31 PM #2DK Veteran
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what mileage is needed, I'll try to change it in the original
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12th February, 2024, 04:42 PM #3DK Veteran
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199018 is shown onto the odometer
Had read with Xtool 448924, 448906 and 357490
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12th February, 2024, 05:05 PM #4DK Veteran
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pass pm...............
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levisdj (12th February, 2024)
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12th February, 2024, 05:07 PM #5DK Veteran
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Original = 448906 km ?
Mod = 199.018 km ?
Algoritm = CRC-16/X-25 in VIN block
55553148534441434E3435373031323131B9F2 CRC-16/X-25 in swap bitLast edited by eliet2000; 13th February, 2024 at 07:53 PM.
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The Following User Says Thank You to eliet2000 For This Useful Post:
levisdj (12th February, 2024)
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12th February, 2024, 05:13 PM #6DK Veteran
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fww1, thanks for your effort, but it seems that your mod wiped out the whole eeprom.
@eliet2000 would you be nice enough to give an example ? the values are good, but it's the other way around
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13th February, 2024, 07:13 AM #7DK Veteran
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I'm sorry, I did a few tests with the example above, but there's a no go. Can someone help calculate the crc in eep v2 please? Thanks
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13th February, 2024, 07:41 AM #8DK Veteran
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what is the error when writing the mod?when editing eeprom control does not change
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13th February, 2024, 08:00 AM #9DK Veteran
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Car starts and runs rough with alot of smoke! 100% crc error as I had a few megane in the past with sid307... so need correct crc calculation
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13th February, 2024, 08:10 AM #10DK Veteran
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when editing eeprom CRC does not change
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13th February, 2024, 08:12 AM #11DK Veteran
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try to record the original eeprom, see how the car behaves
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13th February, 2024, 08:18 AM #12DK Veteran
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As stated, normal no smoke, runs as its supposed to....
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13th February, 2024, 09:06 AM #13DK Veteran
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I can manually calculate the checksums in the eeprom dump if this is still relevant.
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13th February, 2024, 10:40 AM #14DK Veteran
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Yes friend, still need!
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13th February, 2024, 11:09 AM #15DK Veteran
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Your corrected file, regards.
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