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Prius 2011 ABS issue

Discussion in 'Gen 3 Prius Main Forum' started by Greenhybrid, Nov 18, 2024 at 9:48 PM.

  1. Greenhybrid

    Greenhybrid Junior Member

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    Hi Folks, have 2011 Prius. Was working fine and suddenly got ABS light. Brakes are jammed and even after pushing on brake pedal, it’s very hard to apply brakes. Did scan the codes, got c1203, c1252,c1253, c1256 and c1345.
    ABS is NOT making frequent rattling noise and this is fairly new ABS system which I replaced last year. So, not sure what’s the problem. I tried to clear the codes, however, the codes are not going away. 12v battery was read and it came at 11.7v. Did recharge this 12v battery and also tried connecting this 12v battery to other car battery by jump start cable. Still nothing improved and got same codes. Also tried bleeding all 4 brakes, but still no improvement. Please provide suggestions.
     
    #1 Greenhybrid, Nov 18, 2024 at 9:48 PM
  2. Tombukt2

    Tombukt2 Senior Member

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    So let's be clear last year or whenever it was not too long ago you replaced what The actuator and the other part both pieces is recommended by Toyota? Or you just replace the piece that folks told you to replace one or the other that may be your problem Toyota recommends both pieces be replaced obviously with new so if you're buying used and only replacing the one piece well that may be part of the issue I've been waiting to find out it this can happen again especially in this model that's why I'm asking about what you bought and what you replaced and with and how thanks.
     
    #2 Tombukt2, Nov 19, 2024 at 8:43 AM
  3. Greenhybrid

    Greenhybrid Junior Member

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    #3 Greenhybrid, Nov 19, 2024 at 6:43 PM
  4. Greenhybrid

    Greenhybrid Junior Member

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    Many thanks for your reply. Yes, both actuator and pump were replaced last year.
     
    #4 Greenhybrid, Nov 19, 2024 at 6:43 PM
  5. Tombukt2

    Tombukt2 Senior Member

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    Well that's a horrible situation for it to be bad again damn New parts I guess I kind of hope not but Jesus But if those are brand new parts I would think they would still be under warranty not positive of that but one would think
     
    #5 Tombukt2, Nov 19, 2024 at 6:44 PM
  6. Greenhybrid

    Greenhybrid Junior Member

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    Do you think it is ABS going bad or something else. I don’t hear rattling noise of ABS every few seconds. So, I thought there is something else which triggered this error.
     
    #6 Greenhybrid, Nov 19, 2024 at 7:13 PM
  7. Eddie25

    Eddie25 Active Member

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    I would at least check the fuses and relays associated with the system. When you say you don't hear the ABS every few seconds, does that also mean you don't hear the ABS at all?
     
    #7 Eddie25, Nov 19, 2024 at 7:45 PM
    Brian1954 likes this.
  8. rjparker

    rjparker Tu Humilde Sirviente

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    The question remains - were new dealer supplied parts installed last year?

    Second - has someone recently tried to do the Techstream bleed and calibration on the system, perhaps unsuccessfully?
     
    #8 rjparker, Nov 19, 2024 at 7:59 PM
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