74 Dodge Dart turn signal indicator

Discussion in 'Electrical and Ignition' started by Benjamin Thomas Powell, May 10, 2018.

  1. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    So I’ve been working on A 1974 Dodge Dart and I hit a little stumble. Currently my left turn signal indicator work on the gauge cluster but the right side does not. I replaced the fuse to the lights and recently bought a new turn signal assembly do I know the problem isn’t in the column. I also replaced and tested all of the lights before re-installing it. All the exterior lights work, just not the indicator light. Is there something I’m missing?
     
  2. TrailBeast

    TrailBeast Slightly Twisted Member

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    Check it at the round wire socket on the back of the cluster, as it could be just a lost connection to the pin on the back of the cluster.
     
  3. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    I will, where is the wire for the turn signal light coming from? I wasn’t able to trace it on the diagram at my Mopar.com
     
  4. TrailBeast

    TrailBeast Slightly Twisted Member

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    It comes from the same wires that power your signals, but I don't know where specifically.
    I can tell you that on that plug they are right next to each other.
     
  5. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    Alright, I’ll try to track it down. The pins and sockets look good
     
  6. TrailBeast

    TrailBeast Slightly Twisted Member

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    Try a test light on the signals pins and see if you have power to it there.
     
  7. halifaxhops

    halifaxhops It's going to get stupid around here! FABO Gold Member

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    Clean it all with a pencil eraser and then wipe it down.
     
  8. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    The board isn’t the problem. I cleaned that up with a brass wire wheel
     
  9. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    I could but I’m not sure what goes where so I don’t want to ground a power feed
     
  10. TrailBeast

    TrailBeast Slightly Twisted Member

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    Grounding a power feed momentarily can only result in making your test light light up.
    Turn on the signal that the indicator works and then find the pin that makes your test light flash.
    Then turn the other signal on and test the pins on both sides of the one that flashed.
    One of those should also make the test light flash.
    If it doesn't then the problem is not in the cluster, but in the feed to it from the signal wiring.
     
  11. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    Randomly started to work when I started testing lights. It must have just been a poor connection somewhere
     
  12. TrailBeast

    TrailBeast Slightly Twisted Member

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    The gas gauge on the Wife's 72 Dart did that same thing basically and when I wiggled the round connector on the back of the cluster it started working again.
    I am a firm believer in starting wit the easy solutions first.:D
     
  13. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    Hey if it works, it works Thankyou for helping
     
  14. 67Dart273

    67Dart273 Well-Known Member

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    You need to buy yourself a copy of the factory service manual. The 74 is not available for free download that I know of. The 73 is over at MyMopar but the wiring is somewhat different. TS wiring, however should be same

    The conductors for the dash indicators come right off the connector for the TS switch. Left and right front should each have two wires right at the connector, one going to firewall and one going to the dash cluster

    EDIT actually the dash indicator branches ARE "sorta" shown. They are showing the light green branching off at the bulkhead, and the tan branching off at the TS switch connector, LMAO. I'm sure they connect at the same location, instead.

    So Light Green comes in the page, goes all the way up the page to pin 6 of the cluster connector

    Tan, LMFAO........comes off the TS switch, goes off the page to the other page, UP THAT PAGE a bit, then goes BACK onto the original page LOL, and on up the page to pin 7 of the cluster connector.
     
    Last edited: May 14, 2018
  15. Benjamin Thomas Powell

    Benjamin Thomas Powell Member

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    I’ve been using the one on myMopar but have noticed the slight differences. I guess I can’t avoid the inevitable of shelling out the 8 dollars lol