Turns signals don’t work

Electrical and Ignition

  1. Sirsmiley9

    Sirsmiley9 Well-Known Member

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    After I’ve replaced my ignition module for a 1976 duster none of my turns signals work I don’t have blinking left or right in the dash or from front and back lights
     
  2. Early a body

    Early a body Well-Known Member

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    Do you mean the ignition switch? If so it should have been a simply uunplug and plug back in. Was there anything else you had to do to replace the ignition switch. Are you sure it was the correct one for your car, compare the terminal locations from old to new.
     
  3. Sirsmiley9

    Sirsmiley9 Well-Known Member

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    No it’s the box in the engine bay the ignition system connects to I don’t know how it might be related but it only happened a day after that
     
  4. Early a body

    Early a body Well-Known Member

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    seems unrelated. do your brake lights work? Could have been a fuse that blew maybe just a coincidence it happened at the same time
     
  5. Sirsmiley9

    Sirsmiley9 Well-Known Member

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    Haven’t checked the brakes but all the fuses look good
     
  6. Alaskan_TA

    Alaskan_TA Well-Known Member

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    Fuses can look good but still be bad inside the ends where you can not see.

    Pull each one and do a continuity test with a multi-meter.

    Also, did you move or bump any wiring / connections during the recent repair?

    If so, something may have come loose.
     
  7. Sirsmiley9

    Sirsmiley9 Well-Known Member

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    I found two bad fuses but still no turn signals
     
  8. B'cuda

    B'cuda FABO Gold Member FABO Gold Member

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    You said they don't blink, do they light up but not blink? It could be a bad 4 way flasher. Do your hazard lights come on?
     
  9. Sirsmiley9

    Sirsmiley9 Well-Known Member

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    No they do not I’m not sure if some wire could have been knocked out of place while messing with my coil or ballast resistor.

    do you know if there’s some way to test the turn signal switch
     
  10. B'cuda

    B'cuda FABO Gold Member FABO Gold Member

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    I'm sure there is, but I can't help you there. It could very well be the switch in the column. How does the lever feel? Tight with signal cancel working or lose and no cancel? (When it worked)
     
  11. Sirsmiley9

    Sirsmiley9 Well-Known Member

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    it felt a bit loose but the cancel worked and you could feel it click in however it seems if you hold down the lever it flashed once and another time flashed slowly and this was for left blinker and right
     
  12. Robj

    Robj FABO Gold Member FABO Gold Member

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    Usually a good place to start is to check your grounds.

    Which fuses were bad? What circuits are they? Did you check the fuses again? If you have a problem with the wiring in that circuit it will just blow again so recheck the fuses.

    Check the wiring on either side of your bulkhead disconnect, especially on the interior. Look for any melted or deformed insulation. Look for wires stuck together with melted insulation- not just at the disconnect but anywhere up under the dash. get a mirror and flashlight if you have to. Mopars are alias for problems with that. That's a whole other topic to talk about with some preventive actions you can take.
     
  13. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    You need to get yourself a wiring diagram/ service manual---the CORRECT year as 76 has a lot of changes from 74 Find the two flashers there is the signal flasher and the hazard

    The hazard flasher has power at all times
    The TS flasher gets power when key is in "run"

    Pull down the connector at the column for the TS switch get a test lamp/ meter and go to work. First with the key "on" check for power from the signal flasher. Turn key back off. Check for power from hazard flasher. Then check for power from the brake light switch with pedal depressed. The switch receives power at all times. Check for brake lights. If you have power TO the switch and not OUT of the switch you are starting to look at a bad switch. Wiggle the **** out of the hazard switch. The hazard switch can develop problems and screw up the signals/ brake lights

    TSconnector.jpg

    The hazard flasher should have black and pink wires, so the pink at the TS connector should be hazard power coming FROM the hazard flasher TO the switch

    Tan and light green are the two front signal lamps and cluster indicators

    White is switched power from brake light switch coming TO the TS switch

    The bottom wire black, is horn switch

    TS flasher has black and red wires, so red at the TS switch is power to the switch from the flasher
     
    Last edited: Jun 28, 2021
  14. Mattax

    Mattax Just the facts, ma'am FABO Gold Member

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    As just stated 1976 has a lot different from previous years.
    You may find the turn signals do not have a fuse. They probably figured the flasher would act as a breaker
    Hazzard on '76 has its own direct line from the battery, with a fusible link.
     
  15. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    And about fuses..........NEVER "check" fuses just by looking at them. ALWAYS take a light/ meter and see if you have power out of it.........under a load.
     
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