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engine coolant pump b control malfunction prius 2011

Discussion in 'Prius c Technical Discussion' started by Aftab Ak, Sep 18, 2019.

  1. Aftab Ak

    Aftab Ak Junior Member

    Joined:
    May 22, 2018
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    Location:
    Pakistan
    Vehicle:
    2011 Prius
    Model:
    N/A
    Hello all, well I have prius 2011 with 103k miles on it. I had replaced the water coolant pump assembly about 40 days ago with the thermostat, but now the pump failed again with the code P261B Coolant Pump B control malfunction what can be the real issue as my Prius 2011 water pump fails so frequently as i have replaced 3 water pumps in just 14 months which is terrible.
    Today morning it gave error code p0172 the dealer told me to have maintenance of the car like cleaning if the throttle body, spark plugs, injectors, fuel pump and other related stuff, it was done with success, but when I started the car it gave a check engine light with a warning light and with the code p261b and the dealer told me that the pump failed, so needs replacement. I mean how is this possible as I replaced it 40 days ago.
    I am in trouble suggestions and expert opinion needed badly
    Thanks
     
    #1 Aftab Ak, Sep 18, 2019
  2. dubit

    dubit Senior Member

    Joined:
    Dec 3, 2016
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    Location:
    Indiana
    Vehicle:
    2016 Prius c
    Model:
    Two
    Do you have a Prius or a Prius C?

    I have a feeling you have a regular Prius because the "C" didn't start hitting the roads until 2012.
     
    #2 dubit, Sep 19, 2019
  3. Aftab Ak

    Aftab Ak Junior Member

    Joined:
    May 22, 2018
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    Location:
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    Vehicle:
    2011 Prius
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    N/A
    Well I have this, water pump is replaced but still giving p261b code, dont know what to do
     

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    #3 Aftab Ak, Sep 19, 2019
  4. Raytheeagle

    Raytheeagle Senior Member

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    Location:
    Bay Area, California
    Vehicle:
    2019 Prius Prime
    Model:
    Prime Plus
    What water pump are you replacing the original with?

    An Aisin or something else?

    Can you hear the pump runnning?

    Does coolant warm up and can you feel it circulating through the hoses?

    Any damage to the wiring harness?
     
    #4 Raytheeagle, Sep 19, 2019
  5. Aftab Ak

    Aftab Ak Junior Member

    Joined:
    May 22, 2018
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    Location:
    Pakistan
    Vehicle:
    2011 Prius
    Model:
    N/A
    Its Aisin, yes it was running but I think stuck in times, and the coolant gets warm.
     
    #5 Aftab Ak, Sep 19, 2019
  6. Salman Mehmood

    Salman Mehmood New Member

    Joined:
    Oct 4, 2019
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    Location:
    Pakistan
    Vehicle:
    2012 Prius c
    Model:
    N/A
    If you live in Pakistan in Karachi so I will check your batterry with out charge any rupess03043615849
     
    #6 Salman Mehmood, Apr 19, 2020
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