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RNSE not talking to the ignition anymore.

Discussion in 'RS4 Forum (B5 and B7 Chassis)' started by Helifella, Jun 2, 2014.

  1. Helifella
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    Helifella Flying low level

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    Hi, a friend of a friend has an RS4 with nav and I believe AMI (iphone connection)

    The issue he has is recently the RNSE has stopped switching with the ignition, ie ignition on, RNSE doesn't come on anymore and vice versa, ignition off RNSE stays on. Obviously he can press the button on RNSE but wondering why it's not doing it automatically anymore.

    Any help greatly appreciated. If I can solve this he might take me out in it. :-D

    Cheers Matti
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  2. PetrolDave
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    PetrolDave Active Member

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    The RNS-E turns on/off with ignition by decoding messages on the CAN bus, so if it's not turning on/off then here's a problem on the CAN bus.

    Do a Full VCDS scan and see what CAN bus errors get reported.
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  3. Helifella
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    Helifella Flying low level

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    Cheers thanks, I kinda guessed Can bus, having read between the lines on similar threads. Unfortunately I don't have VCDS just yet, but least I can point him in the right direction.
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  4. Helifella
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    Helifella Flying low level

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    Well I did a scan and came up with the following results...

    -------------------------------------------------------------------------------
    Address 17: Instruments Labels: 8E0-920-9xx-8EC.lbl
    Part No SW: 8E0 920 981 R HW: 8E0 920 981 R
    Component: KOMBI+WFS 4 H14 0030
    Revision: 0030 Serial number: 00000000000000
    Coding: 0023411
    Shop #: WSC 00387 210 81342
    VCID: 3C7144537C432FFE87F-515E
    1 Fault Found:
    01304 - Radio
    004 - No Signal/Communication
    -------------------------------------------------------------------------------
    Address 25: Immobilizer Labels: 8E0-920-9xx-8EC.lbl
    Part No SW: 8E0 920 981 R HW: 8E0 920 981 R
    Component: KOMBI+WFS 4 H14 0030
    Revision: 0030 Serial number: 00000000000000
    Coding: 0023411
    Shop #: WSC 00387 210 81342
    VCID: 3C7144537C432FFE87F-517C
    1 Fault Found:
    01304 - Radio
    004 - No Signal/Communication
    -------------------------------------------------------------------------------
    Address 57: TV Tuner Labels: 4D0-919-146.clb
    Part No SW: 4D0 919 146 D HW: 4D0 919 146 D
    Component: TV Tuner H04 0580
    Revision: 01H04001 Serial number: 00000000013778
    Coding: 0007030
    Shop #: WSC 06335 000 00000
    VCID: 2A5D720B86D7A14EE53-515E
    3 Faults Found:
    00464 - Control Module with Display for Radio and Navigation (J503)
    004 - No Signal/Communication
    00865 - Antenna 3 for TV (R57)
    011 - Open Circuit
    00866 - Antenna 4 for TV (R58)
    011 - Open Circuit
    -------------------------------------------------------------------------------

    Can anyone shed any light please?
    He has a Dension iPhone 4 bracket in place of a CD changer, which along with his TV are now not working, as well as the aforementioned fault up the thread.

    What's the best way to pop the RNSE out to check connections?

    Any advice would be lovely.

    Thanks Matti.
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  5. B5NUT
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    B5NUT Well-Known Member

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  6. Helifella
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    Helifella Flying low level

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    No, the Dension was fitted before he took ownership. He thought he'd pressed a button inadvertently which stopped the Dension talking etc.

    Thanks for the link.
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