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my car error NO:P0A0F - P261C

Discussion in 'Gen 3 Prius Technical Discussion' started by ali3d2004, Feb 16, 2011.

  1. ali3d2004

    ali3d2004 New Member

    Joined:
    Aug 10, 2010
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    Location:
    iraq
    Vehicle:
    2010 Prius
    Model:
    II
    I went to the workshop of Toyota in Iraq to repair the car
    But do not have engineers repairing Prius cars
    And they examine the device to detect faults only
    These numbers faults
    (P0A0F)Engine failad to start.
    (P261C)water pump.

    I ask you help me
     
    #1 ali3d2004, Feb 16, 2011
  2. jdcollins5

    jdcollins5 Senior Member

    Joined:
    Aug 30, 2009
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    Location:
    Wilmington, NC
    Vehicle:
    2010 Prius
    Model:
    III
    The P261C DTC Detection Item is listed as:


    "Short in Coolant Pump "B" control circuit" and then the following Trouble Areas:
    • Short in water pump assembly circuit
    • Water pump assembly
    • ECM
    The Prius has two different water coolant pumps, one for the engine coolant and the other is for the Inverter coolant.

    Toyota has a TSB out concerning the Inverter coolant pump. I would check with your dealer and see if this applies to your car.

    What does Toyota in Iraq do for warranty repair items?

    Good luck
     
    #2 jdcollins5, Feb 16, 2011
  3. Mike Dimmick

    Mike Dimmick Active Member

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    Location:
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    Vehicle:
    Other Hybrid
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    N/A
    There are a couple of previous threads on this:

    http://priuschat.com/forums/gen-iii...us-engine-check-followed-then-loss-power.html
    http://priuschat.com/forums/gen-iii...troubleshooting/82008-water-pump-problem.html

    Page 3 of the second thread has a link to the TSB on the electric engine coolant pump. I think jdcollins5 is thinking of the inverter coolant pump problem on 2004-2007 Prius cars.

    http://priuschat.com/forums/attachm...1b-p261c-coolant-pump-control-malfunction.pdf

    I'm guessing the engine no-start problem is that the Engine ECU didn't allow the engine to start with the coolant pump not working. P0A0F is reported by the HV ECU, which is really the car's master computer, but it delegates running the engine to the Engine ECU.
     
    #3 Mike Dimmick, Feb 16, 2011
    1 person likes this.
  4. jdcollins5

    jdcollins5 Senior Member

    Joined:
    Aug 30, 2009
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    Location:
    Wilmington, NC
    Vehicle:
    2010 Prius
    Model:
    III
    ali3d2004,

    Any luck with getting your car fixed?

    Find attached the TSB for the 2010 engine coolant pump problem that Mike Dimmick refers to below. The DTC P261C is listed in the TSB.

    Good luck,

    Dwight
     

    Attached Files:

    #4 jdcollins5, Feb 22, 2011
  5. 2009Prius

    2009Prius A Wimpy DIYer

    Joined:
    Mar 25, 2009
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    Location:
    USA
    Vehicle:
    2009 Prius
    Interesting to see that when they introduce something new it tends to take some time to iron out the wrinkles so to speak.
     
    #5 2009Prius, Feb 24, 2011
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