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Module located below water pump?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Rc4jw, Nov 27, 2019.

  1. Rc4jw

    Rc4jw Junior Member

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    Vehicle:
    2010 Prius
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    III
    I was doing some work on my Prius and pulled the plug from the module located in front of and below the water pump.It has a orange hybrid system wire running into it but I’m not sure what it is. When I turned on the car it said check hybrid system and the code said lost contact with ecu. Somehow the pins got bent when I tried to plug it back in. I don’t have the correct tool to remove the plug which I am guessing is some kind sensor. I need to replace the plug but don’t know exactly what part it is. Also would this being unplugged make the car run bad/rough? I
     
    #1 Rc4jw, Nov 27, 2019
  2. Elektroingenieur

    Elektroingenieur Senior Member

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    Can you tell us more about the connector? How many wires are going to it, and what are their colors? What was the diagnostic trouble code? There are dozens of “Lost Communication with...” codes, and they all have different causes.
     
    #2 Elektroingenieur, Nov 28, 2019
  3. Rc4jw

    Rc4jw Junior Member

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    2010 Prius
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    III
    I figured out it’s the a/c compressor motor which I don’t imagine would have any affect on how the car runs.
     
    #3 Rc4jw, Nov 29, 2019
    Elektroingenieur likes this.
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    Touring
    The AC compressor is powered by the hybrid battery. Your likely getting that message due to bent pin in the orange cable connector, which is part of the hybrid battery circuitry.

    Best disconnect the hybrid battery safety plug before attempting any repair.
     
    #4 Mendel Leisk, Nov 29, 2019
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