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Electrical or Engine Failure?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ElusiveIllusion, Oct 20, 2017.

  1. Mendel Leisk

    Mendel Leisk Senior Member

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    ^ I was pulling off a bit of the dash about a week back, and Repair Manual has a caution, since you're working around air bags:

    Disconnect the 12 volt negative lead.

    Messes up a few settings, but better safe than sorry.

    That guy works fast btw, impressive. I know he's one of the "what drives us crew", just can't recall his name. @3prongpaul ?
     
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  2. jerrymildred

    jerrymildred Senior Member

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    Good point. The guy does mention to make sure the fob is no where in the vicinity, but disconnecting the 12V is best.
     
  3. ChapmanF

    ChapmanF Senior Member

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    While we're at it, disconnect the 12 volt negative lead, and wait the prescribed amount of time for self-discharge of the power capacitors in the air bag system....

    -Chap
     
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  4. Mendel Leisk

    Mendel Leisk Senior Member

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    For the record, that's "at least 90 seconds".
     
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  5. jerrymildred

    jerrymildred Senior Member

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    If you disconnect the 12V first, it should be well over 90 seconds before you get to any airbag stuff unless you're really good an in a big hurry. (I was once quick enough to get poked by a 16kv transformer before its field finished collapsing. That kinda smarts! But not as bad as an air bag in the face, I'm sure.)
     
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  6. Mendel Leisk

    Mendel Leisk Senior Member

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    After battery negative cable disconnect, I stuff that cable into one heavy-duty glove and tuck it out of the way, and the pair of that glove I lay across the hatch latch in the threshold, to avoid the hatch locking when lowered.
     
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  7. ChapmanF

    ChapmanF Senior Member

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    How long does that take?

    -Chap
     
  8. jerrymildred

    jerrymildred Senior Member

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    It was probably about one second I think. Maybe less. Throw the disconnect, lift the lid, reach in with screwdriver already in hand. So I didn't get a lot. I was in a big hurry to get a press running.