Hazard Switch | FerrariChat

Hazard Switch

Discussion in '308/328' started by ollie2010, Jun 21, 2013.

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  1. ollie2010

    ollie2010 Karting

    Jul 26, 2011
    85
    Sherman Oaks, CA
    Full Name:
    Jason
    Anyone have a lead on a new switch? Turn signals are out. Was working to tweak the Hazard toggle for a while but now I think I've killed it.

    Could use a lead on a replacement part.

    Thanks to all!

    J
     
  2. Jonny Law

    Jonny Law F1 Rookie
    Silver Subscribed

    May 6, 2008
    3,203
    Over yonder.
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    IT Guy
    What model?
     
  3. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,367
    NY
    Brace yourself.
     
  4. ollie2010

    ollie2010 Karting

    Jul 26, 2011
    85
    Sherman Oaks, CA
    Full Name:
    Jason
    1980 308 GTSI
     
  5. Wilson308

    Wilson308 Formula Junior

    Apr 27, 2012
    635
    Arkansas, USA
    Full Name:
    Wilson
    If you still have any working contacts on the old switch, you can hijack them to operate relay(s). I did that to fix my turn signals. The switch is extremely expensive, and a replacement will most likely eventually end up broken too, as they are overly complicated and not very robust.
     
  6. cmt6891

    cmt6891 Formula 3

    Feb 25, 2008
    1,338
    Encino, Ca
    Full Name:
    Carl T
    I believe that Superformance UK has repros...around $50
     
  7. howl

    howl Formula Junior

    Apr 10, 2011
    505
    Chicago/Boca
    Full Name:
    Tom
    You note turn signals are out too. Are you sure it is not the relay? Mine died, went to local auto parts store and found a replacement ($8 I think)
     
  8. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,367
    NY
    What did you do to get around the switch. Can you post your modifications for future reference.
     
  9. Wilson308

    Wilson308 Formula Junior

    Apr 27, 2012
    635
    Arkansas, USA
    Full Name:
    Wilson
    #9 Wilson308, Jun 22, 2013
    Last edited: Jun 22, 2013
    I don't have access to any way of making a diagram at the moment, and I'm bad at explaining things, but the process was basically:

    1. Study Paul's wiring diagrams until I understood how the signal circuit worked and what the switch was doing

    2. Test the switch contacts with a continuity tester to find the problem. In my case the part of the switch that sends positive power to the flasher when "on/hazard" was working, but when switched "off" it was not allowing the ignition-switched power to pass through for the turn signals to work. One terminal on the switch was dead.

    3. Draw up a way to use a SPDT relay to do the job of the broken part of the switch, and use the switch terminal that was working when "on/hazard" to activate the relay coil instead of doing its original job.

    Then I just wired it up with quick connectors and sat the relay next to the switch in the console, there's actually a nice place next to the ashtray where a relay fits snug on its side.

    Depending on which terminals work or don't for any given hazard switch, the exact fix could vary a lot, might need a DPDT relay or multiple relays, etc. In general though, you probably only want any relays switched on for the hazards, so they won't be constantly energized.
     
  10. Jonny Law

    Jonny Law F1 Rookie
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    May 6, 2008
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