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2006 Prius wuth p1121 error code and long trip tomorrow!

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ValleyBoy, Jul 19, 2013.

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  1. Mr.Electric

    Mr.Electric Member

    Joined:
    Jan 18, 2011
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    Location:
    San Francisco
    Vehicle:
    2010 Prius
    Model:
    IV
    You should be fine since the light is off. That valve directs coolant to the thermos like canister in the fender. It is probably stuck, could possibly be the source of the leak. Unless you run out of coolant it should not be an issue. The thermos saves hot coolant for the next cold start. Toyota got rid of that system on the gen3


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    #21 Mr.Electric, Nov 16, 2013
  2. Zedhomme

    Zedhomme Member

    Joined:
    Aug 3, 2013
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    Location:
    Central Florida
    Vehicle:
    2016 Prius v wagon
    Model:
    Three
    Valley Boy.
    Just noticed this was back in July except for the last post.
    What was the final outcome of your problem?
     
    #22 Zedhomme, Nov 17, 2013
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