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  1. #1
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    587

    Default Check Engine Light With Not Working Temperature Gauge

    Hello folks, hope you all are managing the mask era good enough!

    Out of the blue, my check engine light came on, with no message in the message window. Looking around on the gauges, I realized the temperature gauge is not working; the pin is way down to the left. What might this be?

    Thanks.
    2001 Volvo V70XC/AWD/Auto/Turbo/164k Miles (Maroon)
    2001 Volvo XC70/AWD/Auto/Turbo/151k Miles (Brown)
    2002 Subaru Outback L.L. Bean/3.0/131K/AWD (Maroon)
    2005 Volvo XC90/AWD/V8/Auto 111K Miles (Black)
    2006 Toyota Sienna LE/AWD 124K Miles(Green)
    --------------------------------------------------------------------------------------
    1985 BMW (E23) 735i(US)/AUTO/209K Miles (Parked since 2011)
    1997 Mazda MPV/AUTO/4WD/173K Miles (Parked since 2008)

  2. #2
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    587

    Default

    Quote Originally Posted by Oka View Post
    Hello folks, hope you all are managing the mask era good enough!

    Out of the blue, my check engine light came on, with no message in the message window. Looking around on the gauges, I realized the temperature gauge is not working; the pin is way down to the left. What might this be?

    Thanks.

    By the way, this morning, I drove it from one spot to another, just about 30 feet drive and the auxiliary fan came on.

  3. #3
    Join Date
    Dec 2009
    Location
    GA
    Posts
    1,420

    Default

    Quote Originally Posted by Oka View Post
    just about 30 feet drive and the auxiliary fan came on.
    Maybe no temp sensor signal defaults to full fan - what does your VIDA say?

  4. #4
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    587

    Default

    Quote Originally Posted by hoonk View Post
    Maybe no temp sensor signal defaults to full fan - what does your VIDA say?
    Click image for larger version. 

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    https://www.dtcdecode.com/Volvo/ECM-2000

  5. #5
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    587

    Default

    I had replaced the "Water Temperature Sender" back in September 2019.
    2001 Volvo V70XC/AWD/Auto/Turbo/164k Miles (Maroon)
    2001 Volvo XC70/AWD/Auto/Turbo/151k Miles (Brown)
    2002 Subaru Outback L.L. Bean/3.0/131K/AWD (Maroon)
    2005 Volvo XC90/AWD/V8/Auto 111K Miles (Black)
    2006 Toyota Sienna LE/AWD 124K Miles(Green)
    --------------------------------------------------------------------------------------
    1985 BMW (E23) 735i(US)/AUTO/209K Miles (Parked since 2011)
    1997 Mazda MPV/AUTO/4WD/173K Miles (Parked since 2008)

  6. #6
    Join Date
    Dec 2009
    Location
    GA
    Posts
    1,420

    Default

    Quote Originally Posted by Oka View Post
    If you click on the ecm2000 code you should be able to navigate to a screen like this with suggested cures -
    Click image for larger version. 

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    And there is a graph of expected resistance reading for the sensor at various temps listed under "product specification/specifications/electrical/2engine/284 control systems/specifications/component specifications"

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