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Thread: Turn Signal Not Making Clicking Sound

  1. 03-18-2023, 10:48 AM #1
    prs356
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    Turn Signal Not Making Clicking Sound

    My turn signals were not making the clicking sound when engaged. I cleaned the contacts on the relay and now everything works.
    Last edited by prs356; 03-18-2023 at 11:29 AM.
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  2. 03-18-2023, 11:16 AM #2
    72targa
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    A great technical question. Moved here.
    Peter Kane

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  3. 03-19-2023, 02:01 AM #3
    72targa
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    PS - updated title. Interesting…never thought about this. What does make the clicking sound?
    Peter Kane

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  4. 03-19-2023, 03:19 AM #4
    BOYER73S
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    Its the relay isn't it??
    Clyde Boyer





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  5. 03-19-2023, 05:19 AM #5
    davep
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    Yes, the electromechanical relay has a solenoid (an electric magnet) that when energized pulls on an iron plate (hinged and sprung to pull it back) that engages a set of contacts. As with any magnet and iron plate, as the magnet approaches the plate will suddenly jump into contact and you will hear the snap as it does so. Just as if you drop a plate on the floor, you will hear it stop. So mechanical relays always make some noise when the engage. Now the flasher relay is a bit of a special case in that it automatically disengages and reengages in a periodic fashion; thus flashing. A buzzer is an extension of this where the period is very short, and the individual clicks are lost and all you hear is a buzz.
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