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DTC P1150 Troubleshoot Revisit

Discussion in 'Gen 2 Prius Technical Discussion' started by NortTexSalv04Prius, Apr 13, 2018.

  1. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    Hello

    I have read several threads in the forum about the OBD DTC P1150.....
    and also done some other preliminary background

    First and /or to begin
    DTC P1150 as applied to a 2004 Gen 2 Prius
    Coolant Path clog heat storage system CHS
    Engine preheat coolant storage

    Possible causes found on initial search
    CHS
    sensor
    ecm
    flow control valve
    clog path .....many places to detect on this one (radiator core, heat core, HV inverter/converter circulation path,


    If anyone has any real feasible solution and a path for troubleshooting this I am grateful for help

    FYI also unsure about vehicle elapsed time without being operated in 2 year period
     
    #1 NortTexSalv04Prius, Apr 13, 2018
    Last edited: Apr 13, 2018
  2. SFO

    SFO Senior Member

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    Has this vehicle been sitting unused for two (2) years?

    How many miles on this vehicle?

    Was this a 'salvaged' vehicle?

    What device did you use to retrieve that P1150 DTC?

    Have you read and or tried what was suggested in this thread?

    CHS Temp Sensor and P1150 | PriusChat
     
    #2 SFO, Apr 13, 2018
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  3. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    #3 NortTexSalv04Prius, Apr 13, 2018
  4. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    Was this a 'salvaged' vehicle?

    YES

    Has this vehicle been sitting unused for two (2) years?

    Hard to say on that maybe could be the timeline


    What device did you use to retrieve that P1150 DTC?

    Bosch loaner from Oreily auto part and scangauge 2

    FYI
    further vehicle is drive able
    However any long distance creates 200 plus coolant temps on scanguage
     
    #4 NortTexSalv04Prius, Apr 13, 2018
  5. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    My first possible focus is locating clog coolant path (maybe inverter /converter HS) or (heater core)
     
    #5 NortTexSalv04Prius, Apr 13, 2018
  6. SFO

    SFO Senior Member

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    Another PC member recently had a coolant blockage issue, and finally reported it as a clog in the lower radiator: Constantly Overflowing Coolant | PriusChat

    If you're still stuck it tracking the problem down, here is the "path for troubling shooting" that DTC P1150:
     
    #6 SFO, Apr 14, 2018
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  7. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    hey thanks

    some how I got the first page only
     
    #7 NortTexSalv04Prius, Apr 14, 2018
  8. ChapmanF

    ChapmanF Senior Member

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    It will keep the troubleshooting simpler to remember that the HV inverter/converter cooling loop is completely separate and has nothing in common with the engine loop; this code's about the engine loop.

    (I know we covered that on the other thread already, but just to keep things clear for others who might find this thread later....)

    -Chap
     
    #8 ChapmanF, Apr 14, 2018
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  9. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    GOING TO GIVE A BIG SHOUT OUT FOR CHAPMAN

    THANK YOU

    THE SENSOR SEEMS TO BE THE ISSUE

    THANK YOU MR C
     
    #9 NortTexSalv04Prius, Apr 22, 2018
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  10. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    #10 NortTexSalv04Prius, Apr 22, 2018
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  11. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    THANK YOU AGAIN

    SOMEHOW WHEN I STARTED TROUBLE SHOOT ONLY GOT ONE PAGE PRINT OUT

    THANK YOU SFO
     
    #11 NortTexSalv04Prius, Apr 22, 2018
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  12. NortTexSalv04Prius

    NortTexSalv04Prius Active Member

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    Okay sad return and will be creating new thread
     
    #12 NortTexSalv04Prius, May 9, 2018
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