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Where is the fuel pump relay for the 3rd gen Prius? (for anti-theft kill switch)

Discussion in 'Gen 3 Prius Technical Discussion' started by Sam Darcy, May 13, 2023.

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  1. Sam Darcy

    Sam Darcy New Member

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    Hi! I'm trying to install an anti-theft kill switch by adding a switch to the wire that connects to the fuel pump relay, a procedure I have done before on my older '04 Honda Civic. (With the kill switch off, the car won't start as the fuel pump won't work)

    1. Does this procedure still work for a hybrid car like the 3rd gen Prius?
    2. I can't seem to find the fuel pump relay in a 3rd gen Prius online. Which relay/fuse do I use to create such a kill switch?
    3. What other theft prevention DIYs do you suggest? :)

    Thanks! Sam D.
     
    #1 Sam Darcy, May 13, 2023
  2. rjparker

    rjparker Tu Humilde Sirviente

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    There will be enough ev power to drive it on a trailer.

    IMG_2053.jpeg The catalytic converter is what they want. They will leave the rest of the car.
     
    #2 rjparker, May 13, 2023
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  3. Georgina Rudkus

    Georgina Rudkus Senior Member

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    #3 Georgina Rudkus, May 13, 2023
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  4. Michael Kent Handy

    Michael Kent Handy Junior Member

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    I'm trying to determine my 2011 prius fuel pump relay(if there is a specific one) I have a no start problem for my engine. I thought replacing the fuel pump module would fix this, but so far has not. I've studied the fuse box diagrams, related them to my under hood fuse box lid diagram, and do not see a specific relay dedicated to the fuel pump. My only clue is maybe the one labeled IGCT, but this is only my opinion based on description of how that is related to power management control
     
    #4 Michael Kent Handy, May 19, 2024
  5. rjparker

    rjparker Tu Humilde Sirviente

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    2nd try in the same thread is the charm?

    Fuel Pump
    IMG_5138.jpeg
     
    #5 rjparker, May 19, 2024
  6. ChapmanF

    ChapmanF Senior Member

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    The alert reader will notice that both of the relays shown in that diagram are within the same gray-shaded thing as the EFI MAIN fuse. That'd be the four-fuse-slot integration-relay thing toward the outboard side of the underhood fusebox. 1B is the middle one of the three connectors plugging into the bottom of it.
     
    #6 ChapmanF, May 19, 2024
  7. rjparker

    rjparker Tu Humilde Sirviente

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    IMG_5143.jpeg
    Part 82641-71010

     

    Attached Files:

    #7 rjparker, May 19, 2024
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  8. douglasjre

    douglasjre Senior Member

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    Cars can be stolen w flatbeds and tow trucks. They go straight to the port then overseas. Foreign countries don't give a F

    I think they want luxury and high end cars, not pri
     
    #8 douglasjre, May 20, 2024
  9. Michael Kent Handy

    Michael Kent Handy Junior Member

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    Thanks Chapman! I also was able to get a confirmation on the same from a Toyota parts supplier that had an "ask a question" option. I really appreciate your technical knowledge evident in the details you provide!
     
    #9 Michael Kent Handy, May 20, 2024
  10. Michael Kent Handy

    Michael Kent Handy Junior Member

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    Thanks...I did not realize thats a relay cassette. Guess I'll have to pull it to take a closer look.
     
    #10 Michael Kent Handy, May 20, 2024
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