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[Solved] Citroen C4 (C41) 2021 - Activation of Semi-automatic Park Assist (AAS, DAE, ABS)

peixacu 162 1
  • #1
    peixacu
    Level 2  
    Good morning everyone,

    I'm Peix and I have a Citroen C4 (C41) 2021 and I want to activate the semi-automatic parking. I have the 12 sensors and the electric steering wheel control. With the Arduino I have already managed to modify the NAC and the BSI, with zone 2300 value 77 (Citypark with AMSP, etc).
    I also have automatic gear box. I need to activate it in the AAS, DAE and ABS.

    Please, does anyone know the meaning of the bytes in these ECUs, or where I can find it?
    These are the values of my ECUs in zone 2101, but I don't know which byte exactly to modify to activate it:

    AAS_UDS_G6 (calib. 9694705980)
    75D:65D
    622101 11 08 59 08 1F 0D 0C

    DAE_UDS2 (calib. 9694679680)
    6B5:695
    622101 03 CB F7 7F FF FF FE FF FF EF FF F7 FF FF FF

    ESPMK100_UDS (prog. 9694534480)
    6AD:68D
    622101 05 FF FF FB FF EF FF FF FF BF FF FF FF FF FE F7 FF FE FF EF DF DA 76 FF

    Any help I will greatly appreciate.
    Thank you so much,
    Peix
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