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05 Won't Start, dash lights blink once

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Matt Cope, Aug 18, 2017.

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  1. fotomoto

    fotomoto Senior Member

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    Tell us more about the "new" pack. Source? Tested?
     
    #21 fotomoto, Aug 23, 2017
  2. edthefox5

    edthefox5 Senior Member

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    Turn the headlights on...are they nice and bright?

    If not its either a dead battery or the hardwired fuse is blown in the fuse box under the hood. if you have good lights then its the hybrid battery.
    You'll never really know whats wrong until you get a HYBRID code reader and read the multiple codes the car has thrown.

    Check the oil too. Its probably empty.
     
    #22 edthefox5, Aug 24, 2017
  3. Matt Cope

    Matt Cope Junior Member

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    I have indeed thought that the 12V system could be the problem, which is why I have had the 12V battery charged and tested to find ample Cranking Amps and consistently tested the battery at 13 to 14 volts with my multimeter. All of the lights work well and bright before and after trying to start, radio works great, all of the electrics work great, so that makes me believe that the 12V battery is good. I work on cars regularly, so I know some of the basics to check, just learning the intricacies about the hybrid system.

    I bought the 2005 Prius knowing it had issues. 05 has 210xxx miles on it. I bought the 07 totaled from a front end collision, battery had just been rebuilt two weeks before by a local Toyota Tech. I have the spare parts to change over if anything is wrong.

    JC91006-thank you for the suggestion of the AM2 fuse, I will make sure to check that.

    How would I check the hardware fuse under the hood? Where is this fuse and how do I get to it?
     
    #23 Matt Cope, Aug 24, 2017
  4. JC91006

    JC91006 Senior Member

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    There's a fuse box in the engine compartment, drivers side
     
    #24 JC91006, Aug 24, 2017
  5. fotomoto

    fotomoto Senior Member

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    Needs to checked.
     
    #25 fotomoto, Aug 24, 2017
  6. Sam Spade

    Sam Spade Senior Member

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    And equally important if you are having electrical trouble is: A multi-meter.
     
    #26 Sam Spade, Aug 24, 2017
  7. Sam Spade

    Sam Spade Senior Member

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    Well it sounds like you have a good handle on the basics but I've got to to ask:
    Have you tested the battery voltage WHILE you have tried to "start" it and nothing happens ?
     
    #27 Sam Spade, Aug 24, 2017
  8. SFO

    SFO Senior Member

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    Third time's a charm? (y)
     
    #28 SFO, Aug 24, 2017
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  9. Sam Spade

    Sam Spade Senior Member

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    However many times it takes before the information sinks in.
     
    #29 Sam Spade, Aug 24, 2017
  10. Matt Cope

    Matt Cope Junior Member

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    Is there a way to check the hybrid battery outside of taking it apart and testing every cell?

    And yes, Sam Spade, I have a multimeter and have been using it along steps in this process. You have stated how important it is to use said multimeter, but never actually said what specifically to check and what the values should be.
     
    #30 Matt Cope, Aug 25, 2017
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  11. dolj

    dolj Senior Member

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    #31 dolj, Aug 25, 2017
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  12. Sam Spade

    Sam Spade Senior Member

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    Others have already provided that information in previous threads on here........MANY times.
     
    #32 Sam Spade, Aug 25, 2017
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  13. SFO

    SFO Senior Member

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    #33 SFO, Aug 25, 2017
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  14. Matt Cope

    Matt Cope Junior Member

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    That sounds like it would be a great way to test the battery, but I do not have a running and driving Prius to test it in.
     
    #34 Matt Cope, Aug 26, 2017
  15. bisco

    bisco cookie crumbler

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    the 12v should be at least 12.4 volts, with the car off, after the car has been off overnight.
     
    #35 bisco, Aug 27, 2017
  16. Matt Cope

    Matt Cope Junior Member

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    Turns out the AM2 fuse was bad, and the inverter pump was completely fried. Transferred the one over from the 07 parts Prius (it had just been replaced) and it runs and drives like a dream, with the original battery!
    Turns out the 12v system was good, and the hybrid system is good as well. I never thought one fuse would cause so many problems.
     
    #36 Matt Cope, Aug 27, 2017
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  17. JC91006

    JC91006 Senior Member

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    There's a recall on the inverter pumps that get shorted out.

    I helped a PC member today fix his inverter pump, these things are dying regularly.
     
    #37 JC91006, Aug 27, 2017
    Last edited: Aug 27, 2017
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  18. Sam Spade

    Sam Spade Senior Member

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    Sounds to me like the fuse did exactly what it was supposed to.......and that is to prevent a fire when the pump shorted out.
     
    #38 Sam Spade, Aug 28, 2017
  19. Oyeleye Amos

    Oyeleye Amos New Member

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    I have this same problem right now. Please do you mean the engine/transmission oil?

    My inverter pump and the AM2 fuse were replaced, the dash lights still blink and shutdown - leaving an orange light on the power button.

    Please, I need help.

    12V battery was also replaced.
     
    #39 Oyeleye Amos, Sep 12, 2019
    Last edited by a moderator: Sep 12, 2019
  20. edthefox5

    edthefox5 Senior Member

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    Check the 12 volt battery voltage at the front jump point under the hood in the fuse box. Don't check it in the trunk it only really matters whats hitting the fuse box. There is a 100 amp fuse in the positive battery post assy on the battery. Checking it at the front jump point checks that fuse continuity.
     
    #40 edthefox5, Sep 12, 2019
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