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PoAA6 2008 prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by reyada4766, Mar 5, 2022.

  1. reyada4766

    reyada4766 New Member

    Joined:
    Feb 21, 2022
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    Location:
    victorville
    Vehicle:
    2008 Prius
    Model:
    N/A
    I tried disconnecting the A/C and the code still apperad. Any common failure points that create this code? I don’t have the tool to get the subcodes. Mpg is 32 not sure if this is related. Since used cars are over proced I might as well fix this one as cheaply as possible
     
  2. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
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    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    In a 2004-2009 Prius, the P0AA6 is caused by the HV battery about 95% of the time. Usually one or more of the 28 individual modules inside the battery has an electrolyte leak/seep that manages to contact the steel case. This causes a reduction in the isolation between the HV system and the car body, which triggers the code.
     
  3. ChapmanF

    ChapmanF Senior Member

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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Either a tool for reading the subcodes, or a tool for measuring megohms, or both, will be basic tools for this job.

    Not having the tool isn't an insoluble problem.
     
  4. reyada4766

    reyada4766 New Member

    Joined:
    Feb 21, 2022
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    Location:
    victorville
    Vehicle:
    2008 Prius
    Model:
    N/A
    Thank you. The car is worn. I Just posted pictures on the200,000mi club plus. It shows the damage on the car.