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  1. #1
    Member verdipio's Avatar
    Join Date
    Sep 2020
    Astra H

    EHU communication lost after disconnect UHP4


    First at all I should introduce myself because its my first post on this forum. I have an Opel Astra H Enjoy 2009 and Im from Spain, so forgive me if my english is not perfect.

    I have a problem with my EHU. My car had UHP4 but somehow it was broken and it showed everytime UHP Safe even beeing original. It caused battery drain so I disconnected the UHP4 module.

    The problem is that when I do it my car lose communication with the EHU (cd30 mp3). I can turn it on and listen radio tunes but the buttons doesn work, steering wheel controls neither and display (GID) doesn show anything related with the EHU. If I reconnect UHP4, everything works fine again.

    Using VAUX COM I get on ECC and DIS error code U-2201-00 (CAN-Bus No Communication with EHU).

    Any ideas? Is that a problem of cd30 mp3 or maybe a cable problem?.

    Thank you. Regards.

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