405 Horn - does it only work with engine running

Discussion in 'Peugeot 405' started by p38arover, Sep 15, 2005.

  1. p38arover

    p38arover Guest

    The horn on my daughter's '89 405 (petrol) will only operate with the engine

    With the ignition on, pressing the horn button will operate a relay and dim
    the dash lights but the horn doesn't work.

    Is that normal for these cars? Well, it is French........

    I don't want to start pulling the electrics apart for no reason. The Haynes
    manual electrical diagrams aren't a lot of use as they don't cover her car.
    Some parts do, soem don't.

    Ron Beckett
    Emu Plains, Australia
    1995 P38A Range Rover HSE 4.6 Litre V8
    1984 Land Rover 110 County 3.5 Litre V8
    p38arover, Sep 15, 2005
  2. Hello,

    although I can only talk about the German version of this car (I got
    one), I doubt this is normal.

    The behaviour of my car is:

    a) Horn and flash lights work with and without ignition.
    b) Pushing the horn button (on the top end of the direction lever) does
    not switch any relay
    c) Pulling the lever gives flash light, if the front light is off
    d) When lights are on, flash light does not work, but switches to high
    beam (so you have to switch to low beam again)

    Hope this helps,

    Beate u. Gerhard Weiß, Sep 18, 2005
  3. p38arover

    davek Guest

    Find the horn, clean the contacts, ensure a good earth.
    Seems like a poor earth which is being overcome by the extra power from the
    alternator whilst the engine is running.
    davek, Sep 27, 2005
  4. p38arover

    p38arover Guest

    Thanks gents.

    I suspected that it should work with the engine off. I shall look into it.


    p38arover, Sep 28, 2005
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