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Technical EZ Wiring turn signal switch question

Discussion in 'Traditional Hot Rods' started by sexy2baguy, Apr 16, 2019.

  1. sexy2baguy
    Joined: Jan 9, 2014
    Posts: 8

    from Cincinnati

    I bought a bolt on turn signal,7012.html

    to use on my 46 Merc convertible. I installed an EZ wiring 12 circuit harness. I want the light on the end of the switch to light up. Instructions say to connect it to a flasher prong. Flashers are built into the board on the EZ wiring harness. I connected the wire from the switch to the flasher wire that powers the switch and the little light come on and flashes, but stay on, just dimmer when the flasher is not engaged. Do I have to pull the board and try to tie a wire in from the back of the flasher or can I add a resistor to the end of the light wire where I want to connect it to the flasher power to the switch? Called EZ wiring yesterday, nobody answered....
  2. If the switch is like mine, you have to have it grounded. Scrape off some of the paint and make sure it is grounded to the steering column or if you are not using a metal steering column you need to run a grounding wire to it.
  3. Not just any prong. Either dig into your wiring kit to see what you exactly tapped into or just go external with another flasher. Look at wire 6 and 7 and where instruction states to place them at flasher.
    And yes, check grounding of switch as well. A test light connected to a hot source and touch body of switch to see if ground is present.
  4. sexy2baguy
    Joined: Jan 9, 2014
    Posts: 8

    from Cincinnati

    Switch is grounded. Turn signals work fine. Are you saying to add an external flasher just for the switch light.
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  5. OK miss read your issue. Skip grounding. Is flasher in the harness a type required for the turn switch?
  6. olscrounger
    Joined: Feb 23, 2008
    Posts: 3,378


    requires a 3 prong flasher. Put a jumper in existing flasher plug (two prong) in panel and add 3 prong flasher. Have installed a few of these-look at the diagram--shows 3 prong flasher needed. Just installed one last week.
    Last edited: Apr 16, 2019
  7. goldmountain
    Joined: Jun 12, 2016
    Posts: 791


    It needs a 3 prong flasher. If you want to be neat, replace the plastic two wire end with a three wire one that is normally used to plug in a headlight bulb. You don't need the second flasher.

    Sent from my SM-T350 using The H.A.M.B. mobile app
    olscrounger likes this.
  8. I also agree on the 3 prong flasher. I just had to rewire my fuse block for a 3 wire the other day when I installed a turn signal switch in my 48. The instructions said a 3 wire is the only way to make it work.
  9. As above, 3 prong flasher AND grounded. Terminal "P" goes to it.
  10. Kiwi 4d
    Joined: Sep 16, 2006
    Posts: 2,400

    Kiwi 4d

    We have done a few of these aftermarket turn signal switches now and just wire them up like @Johnny Gee show in the speedway wiring link. It is much easier than trying to link the switch into the EZ wire kit. So the flasher cans in the EZ wire kit become redundant. Make sure you don’t have too much paint on your column for a good earth for the green turn light.

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