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Touching HV contacts while Orange Plug In?

Discussion in 'Gen 2 Prius Main Forum' started by fragglestickcar, Aug 25, 2024 at 7:28 AM.

  1. fragglestickcar

    fragglestickcar Member

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    Can someone explain how the narrator is so comfortable touching various parts of the battery while the orange plug is still engaged? I guess he merely hovered his hand over the relay points, but he seems so assured. Context: I'm getting a P0AFA (low voltage hybrid system) four months after installing new OEM battery, and am needing to measure voltages.


     
    #1 fragglestickcar, Aug 25, 2024 at 7:28 AM
  2. highmilesgarage

    highmilesgarage Active Member

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    it's kind of crazy that most you tube videos show you how dangerous it is to deal with the HV batteries, you need special gloves.. this and that.. but in reality the design was really safe unless you're stupid enough to deliberately touch the high voltage points that are live. Anyway those are for liability concerns (you won't get sued for the instructions) Most people (including me) don't even wear special gloves to handle it (I'm not saying you should do too) because we know what we're doing. Anyway he's just touching the body and not holding the 2 HV terminals, even then the 2 outermost terminals are not live (relay activated by the car) Removing that plug only disconnects the HV battery to 110v each halves, so there's still voltage in there that could kick you.
     
    #2 highmilesgarage, Aug 25, 2024 at 9:45 AM
  3. mr_guy_mann

    mr_guy_mann Senior Member

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    Before I touch anything at the hybrid battery, I would want to look at block voltages in scandata for the high voltage battery ecu.

    What stands out? If all HV connections were torqued (to 48 inch pounds) then I would suspect a corroded pin at the orange ecu connection.

    As far as safety, yes you can really hurt yourself with a hybrid battery, but you have to try. (Some people do seem to have a natural talent for that).

    The safety recommendations are there to minimize the negative consequences of poor decisions.

    Posted via the PriusChat mobile app.
     
    #3 mr_guy_mann, Aug 25, 2024 at 3:29 PM
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