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  1. #1
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    Default BMW ECU M5.2.1 pinout and kess reading check//year 1998

    I have read this ECU by obd 3 times using KESS. And each time the contenue of flash memory is different (see attached file for checking). And I don’t know if this normal (eeprom emulator inside the flash) or KESS doesn’t read correctly this ECU. And I cannot check these file as winols cannot do checksum correction.
    I dismount the ECU from the car for bench reading but didn’t find any information about pinout connection,
    So I need plz
    the pinout of this ECU for bench reading
    checking kess reading
    BMW_E35_540i
    HW: 0261204467
    SW: 1037350406
    M5.2.1
    year 1997
    4.4 l V8

    Thank you for your help

    regards
    Attached Files Attached Files

  2. #2
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    Default

    Ori, Kess? I never got problem with Ori Kess and this ecu.
    For best desolder and do the job or if you get other tools just do partial (kess also only do a kind or partial).

  3. The Following User Says Thank You to Lambda1 For This Useful Post:

    omarino (21st March, 2021)

  4. #3
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    Default

    Quote Originally Posted by Lambda1 View Post
    Ori, Kess? I never got problem with Ori Kess and this ecu.
    For best desolder and do the job or if you get other tools just do partial (kess also only do a kind or partial).
    It is not original kess, I don't know is the reading should change every time

    Envoyé de mon POT-LX1 en utilisant Tapatalk

  5. #4
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    Default

    Quote Originally Posted by Lambda1 View Post
    Ori, Kess? I never got problem with Ori Kess and this ecu.
    For best desolder and do the job or if you get other tools just do partial (kess also only do a kind or partial).
    i tried on bench, so kess is reading 128 ko but the dump is changing each reading, i used fgtech for comparaison ans it is reading just 32 ko and no changing each reading.
    i heart there is no checksum correction for this ECU in the case of modfing this dump when writing.
    thanks for you help

 

 

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