1. Attachments are working again! Check out this thread for more details and to report any other bugs.

2007 doesn’t start up

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Kyle Parsons, Aug 16, 2024 at 10:14 PM.

  1. Kyle Parsons

    Kyle Parsons New Member

    Joined:
    Friday
    4
    0
    0
    Location:
    North Carolina
    Vehicle:
    2007 Prius
    Model:
    N/A
    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 at 10:14 PM
  2. Kyle Parsons

    Kyle Parsons New Member

    Joined:
    Friday
    4
    0
    0
    Location:
    North Carolina
    Vehicle:
    2007 Prius
    Model:
    N/A
    **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 at 2:10 PM
  3. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    11,178
    4,553
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    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 at 2:11 PM
  4. Kyle Parsons

    Kyle Parsons New Member

    Joined:
    Friday
    4
    0
    0
    Location:
    North Carolina
    Vehicle:
    2007 Prius
    Model:
    N/A
    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 at 4:55 PM
    Last edited by a moderator: Aug 18, 2024 at 11:49 AM
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    109,211
    49,661
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    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 at 8:03 PM
    Kyle Parsons and Brian1954 like this.
  6. Brian1954

    Brian1954 Active Member

    Joined:
    Jan 31, 2021
    907
    340
    0
    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    Use a volt meter and measure what the voltage is for the 12v auxiliary battery.
     
    #6 Brian1954, Aug 17, 2024 at 9:35 PM
    Kyle Parsons likes this.
  7. Kyle Parsons

    Kyle Parsons New Member

    Joined:
    Friday
    4
    0
    0
    Location:
    North Carolina
    Vehicle:
    2007 Prius
    Model:
    N/A
    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 at 10:17 PM
  8. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    3,518
    1,604
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    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 at 10:05 AM
(You must log in or sign up to post here.)