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What is the function of this sensor?

Discussion in 'Gen 4 Prius Main Forum' started by Rajun, Sep 18, 2023.

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  1. Rajun

    Rajun Junior Member

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    I have Prius 2017 S Safety Plus. Do u know what is the function of this sensor? Do u have this sensor?
     

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    #1 Rajun, Sep 18, 2023
  2. Tideland Prius

    Tideland Prius Moderator of the North
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    It's likely related to something in Japan. Could be electronic toll reader or it could be the ITS (Integrated Transportation System).
     
    #2 Tideland Prius, Sep 19, 2023
  3. ChapmanF

    ChapmanF Senior Member

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    In some trims there's a combination rain/humidity sensor that goes roughly there. (I'm not positive that's what yours is, but it could be.)

    There are trims with automatic rain-sensing wipers, and trims that do not have those but still have the sensor, for cabin humidity.
     
    #3 ChapmanF, Sep 19, 2023
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  4. Tideland Prius

    Tideland Prius Moderator of the North
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    Isn't the cabin humidity sensor in the lower dashboard? (the small 3 slats usually under the POWER button and below the steering wheel height)
     
    #4 Tideland Prius, Oct 3, 2023 at 4:49 PM
  5. Tideland Prius

    Tideland Prius Moderator of the North
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    Isn't the cabin humidity sensor in the lower dashboard? (the small 3 slats usually under the POWER button and below the steering wheel height)
     
    #4 Tideland Prius, Oct 3, 2023 at 4:50 PM
  6. ChapmanF

    ChapmanF Senior Member

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    In Gen 2 it was. Then Gen 3 didn't have a humidity sensor, and Gen 4 combined it with the windshield rain sensor.
     
    #5 ChapmanF, Oct 3, 2023 at 6:58 PM
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