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! & headlight level alert

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by neon8s, Jun 18, 2008.

  1. neon8s

    neon8s New Member

    Joined:
    Jun 18, 2008
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    Location:
    Milwaukee, WI
    Vehicle:
    2005 Prius
    I have a 2005 prius, pkg #6 w/ nav system.
    The not to be ignored red ! came on with the nav
    system showing the headlight level alert.
    A dealer visit was not productive as they
    could only reset the alert. It happened again today.
    We revisit the dealer tomorrow. They say Toyota
    has no info about it. The car works fine.
    Nothing I can trace sets the alert off.
    I feel I am not alone with this
    problem. Any help would be appreciated.
    Thanks
     
    #1 neon8s, Jun 18, 2008
  2. Bill Merchant

    Bill Merchant absit invidia

    Joined:
    May 3, 2005
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    Location:
    USA | Oregon | Portland area | 97004 |
    Vehicle:
    2007 Prius
    Hi neon8s, welcome to PriusChat! :welcome:
    Look at this PDF. Does this seem like your problem?
     
    #2 Bill Merchant, Jun 19, 2008
    1 person likes this.
  3. efusco

    efusco Moderator Emeritus
    Staff Member

    Joined:
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    Location:
    Nixa, MO
    Vehicle:
    2004 Prius
    Model:
    N/A
    Yup, Bill's nailed it. That sensor needs to be replaced...should be a warranty item for an '06.
     
    #3 efusco, Jun 19, 2008
  4. neon8s

    neon8s New Member

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    Vehicle:
    2005 Prius
    #4 neon8s, Jun 24, 2008
  5. Bill Merchant

    Bill Merchant absit invidia

    Joined:
    May 3, 2005
    4,096
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    Location:
    USA | Oregon | Portland area | 97004 |
    Vehicle:
    2007 Prius
    I'm glad you got the problem fixed. It's amazing how we, focused on one car, can be so much more aware than some dealers with open access to all Toyota knowledge.
     
    #5 Bill Merchant, Jun 25, 2008
  6. darelldd

    darelldd Prius is our Gas Guzzler

    Joined:
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    Location:
    Northern CA
    Vehicle:
    2006 Prius
    it isn't rocket science to make a weatherproof enclosure. Grr. I can't believe this is still happening on the '06's!
     
    #6 darelldd, Jul 25, 2008
  7. landesjoe

    landesjoe Junior Member

    Joined:
    Mar 31, 2009
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    Location:
    St. Louis, MO
    Vehicle:
    2006 Prius
    Model:
    Two
    Do you know what the resistance reading on a working module should be?
     
    #7 landesjoe, Apr 3, 2009
  8. kenmce

    kenmce High Voltage Member

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    Location:
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    Vehicle:
    Other Hybrid
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    Limited
    My impression is that six volts comes in on one side, an amount which is less than six volts comes out the other side without variation, and the signal coming out the center pin varies with the load in the back. I suspect that if the signal coming out the other side pin drops below a certain level the car assumes the sensor or a wire has failed in the open position, and if it goes up to a full six volts it assumes a short.
     
    #8 kenmce, Oct 14, 2009
  9. ormero8945

    ormero8945 Junior Member

    Joined:
    Mar 22, 2009
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    Location:
    Lancaster, pa
    Vehicle:
    2005 Prius
    Model:
    V
    Neon8s, did they warranty the sensor on your 2005, or did they charge you for it?
     
    #9 ormero8945, Oct 15, 2009
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