Location of fuse links

Discussion in 'Prius v Technical Discussion' started by 473 Prius v, Oct 11, 2025.

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  1. 473 Prius v

    473 Prius v Junior Member

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    Good day all. So I finally got the time to remove the fuse box and locate the fuse we talked about I’ve tested it with a multi meter and yet seems to be ok however since I already bought one I wanted to replace Anyone ever changed it before be I don’t know to remove it I think I feel a small screw probably an 8mm. Any ideas will be greatly appreciated also if the fuse is good any other ideas what I can check. Is it possible my ecu I’d damaged ?
     
    #21 473 Prius v, Oct 29, 2025 at 7:55 PM
  2. 473 Prius v

    473 Prius v Junior Member

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    I finally got the time to work on the car I pulled out the fuse box got access to the fuse checked with a multi meter and it’s good I still wants to change it but I don’t know how to remove it any ideas? Also being as the fuse is good that’s still leaves me wondering what could be wrong with my car
     
    #22 473 Prius v, Oct 29, 2025 at 9:54 PM
  3. rjparker

    rjparker Tu Humilde Sirviente

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    If it's good leave it in.

    How exactly did you check the 125a fuse without accessing it?

    Did you check the 140a fuse at the 12v battery?

    You really need to check the 12v at various points when it is all connected based on the diagram.
     
    #23 rjparker, Oct 29, 2025 at 10:30 PM
  4. 473 Prius v

    473 Prius v Junior Member

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    I flipped the fuse box and was able to see it I touched both sides with a multi meter to and got the beep
     

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    #24 473 Prius v, Oct 30, 2025 at 8:58 AM
  5. 473 Prius v

    473 Prius v Junior Member

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    Where is the 140a fuse located?
     
    #25 473 Prius v, Oct 30, 2025 at 8:59 AM
  6. ChapmanF

    ChapmanF Senior Member

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    In the assembly clamped to the positive post of the 12-volt battery, where it kind of bends down over the side of the battery like a Dalí wristwatch.
     
    #26 ChapmanF, Oct 30, 2025 at 10:21 AM
  7. 473 Prius v

    473 Prius v Junior Member

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    Yes I’ve checked that everything powers up the car just won’t go into ready mode/start
     
    #27 473 Prius v, Oct 30, 2025 at 12:48 PM
  8. rjparker

    rjparker Tu Humilde Sirviente

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    If you shorted something out while removing the inverter, it must have been 12v UNLESS you had the car in Ready while you were doing it.

    But it is essential to verify the 12v voltages at various places to see what fuse might have blown. To do that requires use of the meter's dc volts mode and the diagram.

    If that is beyond your capabilities you need help.
     
    #28 rjparker, Oct 30, 2025 at 1:02 PM
  9. 473 Prius v

    473 Prius v Junior Member

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    No the ignition was off safety plug on hybrid battery out but I forgot to disconnect the 12v battery
     
    #29 473 Prius v, Oct 30, 2025 at 1:24 PM
  10. 473 Prius v

    473 Prius v Junior Member

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    I would most likely need help but that’s. Very hard to find here
     
    #30 473 Prius v, Oct 30, 2025 at 1:24 PM
  11. rjparker

    rjparker Tu Humilde Sirviente

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    Earlier you said you checked the fuses and all were good. Clearly some were missed as they were hidden from easy view like the 125a and the 140a. Some are inside the cabin under the driver's side dash. Some in the engine compartment are different shapes even though they are visible.

    One common issue is replacing the fuses in the wrong slots.

    It is possible the inverter was damaged but I would think Toyota's fuse protections would have saved it.

    The help I am talking about is a tech, mechanic or more experienced diy'er who can use the dc voltage mode of your meter and check voltages on the post 2 diagram. At least be sure the 12v voltage is getting past the fuses.
     
    #31 rjparker, Oct 30, 2025 at 1:38 PM
  12. 473 Prius v

    473 Prius v Junior Member

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    I will see what I can do and update. Thank you for your help again but I’m getting 12v at the jump port in the fuse box under the hood
     
    #32 473 Prius v, Oct 30, 2025 at 3:38 PM
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