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2007 doesn’t start up

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Kyle Parsons, Aug 16, 2024.

  1. Kyle Parsons

    Kyle Parsons New Member

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    I have an 07 Prius that has had a few issues recently. The first problem was the red triangle while driving which is the battery fan. Now I can’t get it to crank up. I have checked the blue 15a fuse the main link and tried boosting it off. What could I be missing? Thanks
     
    #1 Kyle Parsons, Aug 16, 2024
  2. Kyle Parsons

    Kyle Parsons New Member

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    **update

    I used a scan tool to clear codes but it still isn’t cranking. I had my booster box on it while trying
     
    #2 Kyle Parsons, Aug 17, 2024
  3. PriusCamper

    PriusCamper Senior Member

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    Battery fan automatically turns on when you get a red triangle related to hybrid system... Warning lights mean error codes have been stored that will point to the problem. You can buy one of these to read and clear error codes using phone apps like Dr. Prius App and others: http://www.ebay.com/itm/265484403768
     
    #3 PriusCamper, Aug 17, 2024
  4. Kyle Parsons

    Kyle Parsons New Member

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    I cleared all the codes and it still didn’t start up. Will the car crank and run if the battery fan isn’t working?
     
    #4 Kyle Parsons, Aug 17, 2024
    Last edited by a moderator: Aug 18, 2024
  5. bisco

    bisco cookie crumbler

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    you don't want to clear the codes, you want to read them. they will help direct you to the issue.
    it is possible that an internal short in the battery is interfering with the booster pack. are you sure the booster pack is good?
     
    #5 bisco, Aug 17, 2024
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  6. Brian1954

    Brian1954 Senior Member

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    Use a volt meter and measure what the voltage is for the 12v auxiliary battery.
     
    #6 Brian1954, Aug 17, 2024
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  7. Kyle Parsons

    Kyle Parsons New Member

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    I’m sure my booster is good but I will definitely use a voltmeter to check the 12 volt battery.

    when you say there could be an internal short in the battery, are you referring to the 12 volt battery?
     
    #7 Kyle Parsons, Aug 17, 2024
  8. mr_guy_mann

    mr_guy_mann Senior Member

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    You have a warning light which usually comes on when there's a fault with the hybrid drive system. The car uses the hybrid drive system to crank the engine at 1000 RPM in order to get it running. Now the engine won't crank over.

    Maybe there's a fault with the hybrid system that prevents it from cranking the engine.

    You need a capable scantool to check all systems for codes. Here's a thread that reviews several scantool apps and devices for smartphones.

    https://priuschat.com/index.php?posts/3290690

    Posted via the PriusChat mobile app.
     
    #8 mr_guy_mann, Aug 18, 2024
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  9. MAX2

    MAX2 Member

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    Is the "ready" sign on?
     
    #9 MAX2, Aug 20, 2024
  10. Kyle Parsons

    Kyle Parsons New Member

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    No
     
    #10 Kyle Parsons, Aug 20, 2024
  11. bisco

    bisco cookie crumbler

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    yes. take it out of the circuit and try jumping
     
    #11 bisco, Aug 20, 2024
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  12. MAX2

    MAX2 Member

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    Check fuses.
    Errors must be counted. Try the scanner for OBDII
    Now this is fortune telling.
     
    #12 MAX2, Aug 21, 2024
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  13. ChapmanF

    ChapmanF Senior Member

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    "You will soon make a journey on foot"
     
    #13 ChapmanF, Aug 21, 2024
  14. bisco

    bisco cookie crumbler

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    "polar bears walk backwards after dark"
     
    #14 bisco, Aug 21, 2024
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