308 headlight flash function | FerrariChat

308 headlight flash function

Discussion in 'Technical Q&A' started by DKHudson, May 3, 2006.

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  1. DKHudson

    DKHudson Formula Junior

    Sep 1, 2004
    438
    Durham, UK
    Full Name:
    David Hudson
    I have a UK (european) specification 1981 308GTS.

    The headlight stalk appears to pull back to raise, flash and then drop the headlights momentarily, but this does not work. On investigation of the wiring charts there is an electrical link missing (presumably as flash function not allowed or required in some regions).

    To enable the headlight flash seams to require on a very simple electrical connection, as the wiring schematic infers that all the necessary wires (main beam lamp supply, lift motors etc...) come together in one place for this very purpose...

    The $64,000 question is.... Does anybody know where physically this location is on the car!

    I've had a look around the steering column and main fuse - relay board, but didn't spot it. I could go over the whole loom, but that is more effort than it is worth.

    Any suggestions?


    David
     
  2. Dr Tommy Cosgrove

    Dr Tommy Cosgrove Three Time F1 World Champ
    Owner Rossa Subscribed

    May 4, 2001
    36,599
    Birmingham, AL
    Full Name:
    Tommy
    I thought the Euro 308s had little driving lights for that.
     
  3. hanknum

    hanknum Formula 3

    Nov 1, 2003
    2,050
    Santa Barbara
    Full Name:
    Henry
    On my U.S. '78 308 the stalk also pulls back but did not control anything. I hooked up a relay to it so that I could flash some driving lights that I had installed. Works great. IIRC, there is a connecter (under the steering column) from the stalk where there is a wire from the stalk but no wire on the other end of the connecter. This is where I connected to. I can't remember if this provides a momentary ground or +12v. Use a multimeter to find out.

    HTH

    Henry
     
  4. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
    Full Name:
    Verell Boaen
    The Euro QVs do. Think they were the first. Will have to check my copy of Ferrari V8...
     
  5. DKHudson

    DKHudson Formula Junior

    Sep 1, 2004
    438
    Durham, UK
    Full Name:
    David Hudson
    Wow, I didn't think I'd get replies that quickly...

    Yes the European QV had Cibie driving lights under the bumper in the grille area and yes I understand these do flash on operation of the stalk.

    But looking at my wiring chart it appears my lightly earlier ('81) car has the wires from the main beam lighting relay control and control for the headlight raise relay all brought together next to the end of the wire from the stalk... This gives the impression that by making the connection the stalk would put voltage to the relay to light the mains beams and trigger the headlights to rise until the stalk is released.

    While not essential, it is handy to have the flash function for communication in traffic, as follows:
    In UK a headlight flash tends to mean a couple of things, depending upon the context:
    1) OFFICAL - "warning" - did you not notice me?
    2) UNOFFICIALLY in traffic to a waiting vehicle... "please proceed before me, sir/madam" (aka: "for God's sake, please do something")
    3) UNOFFICIALLY for slow vehicles... excuse me, would you vacate the overtaking lane ("because you have been getting in my way for the last 2 miles!")

    Yours,


    David
     

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