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Vehicle Signal Check Mode test,13.4v while driving,13.9v on Park

Discussion in 'Gen 2 Prius Main Forum' started by ski.dive, Jul 17, 2024 at 3:38 PM.

  1. ski.dive

    ski.dive Active Member

    Joined:
    Jun 11, 2008
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    Location:
    Hutchinson Island,FL. Mt. Snow,VT
    Vehicle:
    2008 Prius
    I did a= Vehicle Signal Check Mode Test

    My results where--- 13.4v while driving - 13.9v while on park

    ***Do these test results mean that my Hybrid Battery is still OK
    Or will I need to replace the HYBRID BATTERY soon?
     
    #1 ski.dive, Jul 17, 2024 at 3:38 PM
  2. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Seems to me that's testing something to do with your 12 volt battery at rest and charging or something You're hybrid battery would have nothing to do with 12 or 13 volts The inverter DC to DC converter dictates what's on the battery from the inverter when the car isn't ready I don't know about the signal check business ready the car and measure across the battery terminals with a voltmeter It should be what you just said it was on 13.9 that's about right 13.4 at rest I'm interested in that rest after about 45 minutes not 2 minutes after the car's been unreadied
     
    #2 Tombukt2, Jul 17, 2024 at 5:05 PM
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