Citroen Contro unit.

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  • Eleways
    Senior Member
    • Oct 2014
    • 62
    • Italy
    #1

    Citroen Contro unit.

    Hi

    I need to replace a control unit on a Citroen C4. So I've got a new one control unit but doesn't work due the immobilizer code.
    I've open both central unit but I've found a Flash Eprom M49F4000 and a 93c56 eeprom.
    I don't know how replace to fix immobilizer problem.

    Anyone can help me?

    Thanks!

    Luca
    Tags: None
    • digby1951
      Member
      • Jan 2017
      • 36
      • uk
      #2
      Re: Citroen Contro unit.

      it will need programming...by main dealer....or buy a DIAGBOX PROGRAMMER from ebay.........but u need to be computer savvy to work the software and know how to use DIAGBOX..........
      ...............if u got a virgin ecu...it needs to be programmed...to get ur immobilizer working
      Last edited by digby1951; 09-12-2021, 06:24 AM.

        Comment

        • Repdata
          Senior Member
          • May 2020
          • 67
          • Deutschland
          #3
          Re: Citroen Contro unit.

          there is the possibility of cloning
          but this is only suitable for experts
          bring the control device to a company that repairs such devices that should clone the data then everything works again or bring to Citrön for programming if the used ECUs can flash

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