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2014 Prius V parasitic drain on efi2 fuse=4.2

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Mike from Merrick, Oct 29, 2022.

  1. Mike from Merrick

    Mike from Merrick Junior Member

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    So after the battery drained on 2 consecutive nights, I did the fuse test according to the humble mechanic onyou tube.
    The efi2 fuse showed 4.2 draw. Can’t seem to locate the efi relay, and the dealer said the 60a fuseable link is on”back order”
    Anyone else ever have/solve this?
     
    #1 Mike from Merrick, Oct 29, 2022
  2. Tombukt2

    Tombukt2 Senior Member

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    4.2 amp draw just sitting in driveway daum. That'd be like a stereo playing full time a pretty decent one too . No?
     
    #2 Tombukt2, Oct 30, 2022
    Mike from Merrick and Air_Boss like this.
  3. Air_Boss

    Air_Boss Senior Member

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    50 watts?
     
    #3 Air_Boss, Oct 30, 2022
  4. sam spade 2

    sam spade 2 Senior Member

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    4.2 what ? Amps.....milliamps......big difference.
    And what does the 60 amp main fuse have to do with this ???
     
    #4 sam spade 2, Oct 30, 2022
  5. Mike from Merrick

    Mike from Merrick Junior Member

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    To answer your response, I believe I may have had the setting on dcv, 20, so now Ill go back and check for ma., and I read on one of the posts that changing out the relay which could be stuck was an option.
    I suck at electrical stuff, so its a continuing learning experience for me.
     
    #5 Mike from Merrick, Oct 30, 2022
  6. Mike from Merrick

    Mike from Merrick Junior Member

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    no, believe I ran it across the fuse on dcv 20 and it read 4.2. Going to redo the test later
     
    #6 Mike from Merrick, Oct 30, 2022
  7. Air_Boss

    Air_Boss Senior Member

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    50 watts or 50 miliwatts?
     
    #7 Air_Boss, Oct 30, 2022
  8. Mike from Merrick

    Mike from Merrick Junior Member

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    Agree. This car was a taxi, had all of the hack up wiring still in it for the meter and other electronic stuff for the taxi etc. I was able to remove all of the taxi wiring, testing and checking each circuit. Changed out the EFI2 fuse, and after a day and a half, it didn't lose hardly any voltage. It must have had a circuit attached to the audio though. I now have no radio, lol
     
    #8 Mike from Merrick, Oct 30, 2022
  9. Tombukt2

    Tombukt2 Senior Member

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    The EFI fuse at rest showed 4.2 draw of what amps? milliamps? 4.2 volts?
     
    #9 Tombukt2, Oct 30, 2022
  10. rjparker

    rjparker Tu Humilde Sirviente

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    I think he was doing a mv test across fuses as a way to determine which circuit was responsible for excessive parasitic draw. Then he was shotgunning the circuits. May have got lucky by just cleaning up the old taxi wiring.
     
    #10 rjparker, Oct 31, 2022
    Mike from Merrick likes this.
  11. Mike from Merrick

    Mike from Merrick Junior Member

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    rjparker, you are right, exactly what he did! Now to figure out the audio tuner on that center screen!
     
    #11 Mike from Merrick, Oct 31, 2022
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