Turn Signal Problem on 1966 - NCRS Discussion Boards

Turn Signal Problem on 1966

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  • Yongki H.
    Expired
    • June 27, 2011
    • 8

    Turn Signal Problem on 1966

    Does anyone know any common problem area on 1966 turn signal?
    Both sides do not work and I'm not getting any power from either side of the fuse. The switch seems okay, but I just can figure out where the power went out. Thank you in advance.
  • Erich C.
    Very Frequent User
    • January 31, 2007
    • 137

    #2
    Re: Turn Signal Problem on 1966

    What fuse are you checking? According to the wiring diagram power comes from the ignition switch ( brown wire ) to the signal flasher. The other terminal of the flasher goes to the turn signal switch via a purple wire. It's possible the flasher is no good. Btw if you don't have a wiring diagram you can download one from this site : http://www.wiringdiagrams21.com/2008...wiring-diagram
    Erich

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    • Yongki H.
      Expired
      • June 27, 2011
      • 8

      #3
      Re: Turn Signal Problem on 1966

      Thank you, Erich.
      From the schematic, the brown wire does not go to the Direction Signal Switch Connector. There is no power from either side of the Signal Switch. The signal flasher was replaced with a new unit but so far no progress.

      Comment

      • Erich C.
        Very Frequent User
        • January 31, 2007
        • 137

        #4
        Re: Turn Signal Problem on 1966

        As I said in my previous post the brown wire goes to the signal flasher. The signal flasher is normally closed so power flows through it to the purple wire.
        The purple wire then goes to the signal switch connector. If you look at the wiring diagram you will see that the brown wire after it leaves the ignition switch splits. The subsequent brown wires supply power to different circuits such as the windshield wipers, heater and radio. If those are still functioning it means that the brown wire is supplying power from the ignition switch. Since you replaced the signal flasher the next step would be to check for power at the signal flasher. One terminal should read +12vdc and the other 0vdc. One thing to be aware of is if the problem is caused by the brown wire or terminal being corroded it can still read +12vdc with a voltmeter. So if you are using a voltmeter and read +12vdc, check it with a test light next. The test light places a load on the circuit. If the wire or terminal is corroded enough the voltage will drop and the test light won't light. If that is the case you can remove the two screws from the fuse block. The fuse block can then be split and checked for corrosion.
        Erich

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