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P0A80/P0420 Problem

Discussion in 'Gen 2 Prius Main Forum' started by JohnSmith09, Nov 1, 2020.

  1. JohnSmith09

    JohnSmith09 New Member

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    Location:
    Gettysburg Pennsylvania
    Vehicle:
    2009 Prius
    Model:
    Three Touring
    Prius 2009 Black Without Smart Key 123K Miles I’m In Gettysburg PA. This Friday I Started Up The Car Got The Red Triangle. I Drove It To Toyota Payed About 100$ For A Diagnostic. Sat For 6 Days In My Garage I Told Them. They Said Hybrid Battery Pack And A Catalytic Converter. They Said They 12V Is At 12.54V Off And 14.00V On. They Wanted 4,500$ For A HV Battery Replacement And 2,300$ For The Catalytic Converter . Any Ideas On What To Do? Thanks, John Parker Smith.

    P0AA6 612 Hybrid Battery Voltage System Isolation Fault

    P0A80 123 Replace HV Battery Pack

    P3000 123 Battery Control System Malfunction

    P3024 123 Battery Block 14 Becomes Weak

    P0420 Catalyst System Efficiency Below Threshold (Bank 1)

    C1310 51 156 Malfunction In HV System

    B1421 21 Solar Sensor Circuit (Passenger Side)

    Hybrid Pack Voltages

    B1 17.20V

    B2 17.30V

    B3 17.18V

    B4 17.39V

    B5 17.21V

    B6 17.20V

    B7 17.16V

    B8 17.33V

    B9 17.29V

    B10 17.40V

    B11 17.27V

    B12 17.10V

    B13 17.36V

    B14 16.71V

    15FE8F83-2161-4F27-90B6-A0CDA8855330.png D5B80D7D-AA90-490B-93BB-256FA87D545F.png
     
    #1 JohnSmith09, Nov 1, 2020
  2. ChapmanF

    ChapmanF Senior Member

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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Only four primary codes there:

    P0AA6 612 / P0A80 123 / P3024 123 all to do with the traction battery

    P0420 about the exhaust system

    All the other codes on the list are other computers in the car saying "hey, did you hear about those other codes?" and one solar code because it wasn't sunny when the codes were read.

    It does seem like the battery's got a couple problems.
     
    #2 ChapmanF, Nov 1, 2020
    fotomoto likes this.
  3. fotomoto

    fotomoto Senior Member

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    Vehicle:
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    John,

    You have several options on the HV battery issue. These are listed by price, how reliable you need, and for how long (least to more):

    1) DIY Repair/replace failed modules in your pack: $50 (swap and pray)
    2) Get a refurb/rebuilt (used) pack installed: $400-2500 (buyer beware)
    3) DIY reconditioning w/ grid charger (plus option 1): $200-$800ish (IMO too late now for GEN 2)
    4) Find a "good" used pack from later generations, DIY install: $500+ (not plugnplay)
    5) DIY all new aftermarket modules (aka new battery:) $1600
    6) Toyota Dealer Battery typical quotes: $3-4000

    As one can see, if DIY, there are more options. IMO, #4&5 are the best bang 4 buck but #4 can be hard to come by at a good price. The only way to really know the age of used pack is to open it up and check the manufacture date codes on each module.

    GOOD LUCK!
     
    #3 fotomoto, Nov 1, 2020
  4. mr_guy_mann

    mr_guy_mann Senior Member

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    Vehicle:
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    Four
    You forgot a couple options.

    2.5) DIY reconditioning with hobby chargers. Includes #1. Takes LOTS if time to do it "right". Can be $100 to over $500 depending on how much equipment you buy.

    5.5) DIY replacement with all new Toyota modules. $1600 to $2000. Usually has a shorter warranty than having the dealer do the install.

    Anything option that reuses old modules has a risk of repeat failure- it is just question of when.
    Posted via the PriusChat mobile app.
     
    #4 mr_guy_mann, Nov 1, 2020
    PriusCamper likes this.
  5. JohnSmith09

    JohnSmith09 New Member

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    Location:
    Gettysburg Pennsylvania
    Vehicle:
    2009 Prius
    Model:
    Three Touring
    Where can I buy a hobby charger? If I decide to go with that option
     
    #5 JohnSmith09, Nov 1, 2020
  6. JohnSmith09

    JohnSmith09 New Member

    Joined:
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    Location:
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    Vehicle:
    2009 Prius
    Model:
    Three Touring
    55FDD756-1B5E-4EDE-A5AA-2E8559349585.jpeg So I took the battery out today and found some corrosion. This is on block 11 all other blocks look the same. Anything else I should be looking for ?
     
    #6 JohnSmith09, Nov 2, 2020
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