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PP HV (traction) battery diagnosis

Discussion in 'Prime Technical Discussion' started by Marine Ray, Nov 22, 2023.

  1. Marine Ray

    Marine Ray Senior Member

    Joined:
    Mar 21, 2017
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    Location:
    Sparks, NV
    Vehicle:
    2017 Prius Prime
    Model:
    Plug-in Advanced
    Fascinating 3 min video from NZ. Gives detailed info on the HV battery.


     
    #1 Marine Ray, Nov 22, 2023
  2. vvillovv

    vvillovv Senior Member

    Joined:
    Mar 19, 2013
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    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    That's some nice diagnostic software for the high voltage side of our hybrids.

    A lot of owners are also interested in how the low voltage side ( 12 volt system ) works, especially the Primes 12 volt. It looks close to normal when in READY mode at around 14 volts and perhaps a bit on the low side 12.2 -12.4 volts at the terminals without any load. Although in ON mode the monitoring seems to drop below 12 volts rather quickly. I'm starting to think that voltage readings of the 12 volt system are not telling us the whole story of how the low voltage system is supposed to work as designed.
     
    #2 vvillovv, Nov 26, 2023
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