2007 w/p1121coolant control valve

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by gregwco, Dec 17, 2020.

  1. gregwco

    gregwco New Member

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    Vehicle:
    2007 Prius
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    Three Touring
    Hey, P1121 code so I replace my valve. Code came back, so I tested the old valve and it did its thing. Now I have two working valves. The electrical connection looks great. Could it have a short? Any thoughts or suggestions...
    Thanks, gregwco.
     
    #1 gregwco, Dec 17, 2020
  2. JC91006

    JC91006 Senior Member

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    Did you bleed all the air out of the coolant loop?
    Where did you get the replacement valve? Is it an OEM product?
     
    #2 JC91006, Dec 18, 2020
    m.wynn likes this.
  3. gregwco

    gregwco New Member

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    Three Touring
    Sorry, a lot of hours at work. Yes, the coolant system is clear of air and full. Dorman product, I have never had a problem with them in the past.
     
    #3 gregwco, Dec 20, 2020
  4. JC91006

    JC91006 Senior Member

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    There were others that have installed Dorman products and they ended up being defective.
     
    #4 JC91006, Dec 20, 2020
    m.wynn and Raytheeagle like this.
  5. gregwco

    gregwco New Member

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    2007 Prius
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    Three Touring
    It has been functioning. The heater works fine. About 400 miles since the swap.
     
    #5 gregwco, Dec 20, 2020
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