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2014 Prius - ABS, Brake and Skid Light ( C1391 - Abnormal Leak in Accumulator)

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by tampaite, Apr 21, 2024.

  1. tampaite

    tampaite Member

    Joined:
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    Location:
    FL
    Vehicle:
    2014 Prius
    Model:
    N/A
    2014 Prius (has 122k miles on it) - these three musketeers showed up
    • ABS Light ON
    • Brake Light ON
    • Skid Light ON
    Used obdlink mx+ with a free add-on for diagnostics.

    it shows "C1391 - Abnormal Leak in Accumulator" ( posting an image)

    I also see I have brake fluid and inverter/coolant fluid below the MIN level ( this is taken after a 5min cool down since driving for 45min)
    Luckily, Issued popped up within few miles of home.

    1. I'll continue to read-up on this but wanted to get this thread started to allow me to post updates.
    2. Are the brake/coolant fluids need to be topped? - they show to be below MIN
    3. Is there a recall or service campaign for C1391 ?
    4. I borrowed the OBD reader from neighbour - anything else that I need to look up under diagnostics before I return it?
    5. Lastly, the MAINTENANCE REQUIRED is for oil change - Dealer I think sets it for 5k but I get synthetic and never got around to change it but I still have another 3000 miles before I need to change.
    Maint_Prius.jpeg

    C1391.jpeg

    Brake_Inverter.jpeg
     
    #1 tampaite, Apr 21, 2024
    Last edited: Apr 21, 2024
  2. ChapmanF

    ChapmanF Senior Member

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    Vehicle:
    2010 Prius
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    IV
    Look up "customer support program ZJB". The coverage extends to 150,000 miles or to ten years from first use, so here in April 2024 it may come down to when in 2014 your car was first used. Don't dawdle, and don't clear the trouble code.

    The fluid leak is usually internal in the brake actuator, and under the support program, Toyota will replace both that and the accumulator/pump. Both are expensive parts and a PITA to replace, so getting it done for free is a nice break.
     
    #2 ChapmanF, Apr 21, 2024
    tampaite likes this.
  3. tampaite

    tampaite Member

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    2014 Prius
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    The VIN tag shows 06/14.

    VIN.png
     
    #3 tampaite, Apr 21, 2024
  4. ChapmanF

    ChapmanF Senior Member

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    IV
    oh happy day
     
    #4 ChapmanF, Apr 21, 2024
  5. tampaite

    tampaite Member

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    2014 Prius
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    Took it to Toyota Dealer - $230 diagnostic fee - after an hour, they said will cover the cost under the service campaign otherwise would have been a $3300 bill.

    I won't have to pay the diagnostic fee otherwise a hefty bill.

    Out of parts so they provided a 2-day rental, will post once I pick up the car...
     
    #5 tampaite, Apr 21, 2024
    Last edited: Apr 21, 2024
    bisco, Brian1954 and ASRDogman like this.
  6. tampaite

    tampaite Member

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    2014 Prius
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    Picked up the car from the dealer tonight.

    The brake still seems a bit sluggish but better than before. They did confirm it was repaired under the 'Customer Support Program'.

    Attaching the repair log as below.

    Other than the Hybrid system - this maybe the most expensive part to replace - is that right ?

    PRIUS_REPAIR.png
     
    #6 tampaite, Apr 23, 2024
  7. C-in-DC

    C-in-DC Member

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    Limited
    That and the catalytic converter.
     
    #7 C-in-DC, Apr 23, 2024
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