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Hybrid “Ready” but not cranking ICE

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Gee V., Nov 7, 2024 at 5:07 PM.

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  1. Gee V.

    Gee V. New Member

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    Location:
    Massachusetts
    Vehicle:
    2008 Prius
    Model:
    Touring
    Hey guys, I need help.

    I dived into a 2011 Prius that the hybrid system is ready, but when tries to crank the internal combustion engine, it just can’t. I heard the motor humming but no crank.

    my friend, the owner of the car, run out of gas last night and since then the Prius is having this problem.

    The hybrid battery is in 16% of state of charge according to Dr. Prius app.

    I got codes P0335 and I already put a new crankshaft position sensor
    P0A0F engine failed to start

    12 V battery is good, fuel pump is working, all fuses are in good state.


    Any idea on what’s happening?
    Thank you all
     
    #1 Gee V., Nov 7, 2024 at 5:07 PM
  2. Brian1954

    Brian1954 Senior Member

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    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    The hybrid battery may be too low (16% SOC) to start the engine. Try disconnecting the 12v battery for a few minutes. Then, connect the battery and try to start the car

    Edit: If the engine starts, let the car run to charge the hybrid battery. Turn off the car after the engine warms up and turns off by itself.
     
    #2 Brian1954, Nov 7, 2024 at 10:05 PM
    Last edited: Nov 7, 2024 at 10:32 PM
    Gee V. likes this.
  3. ASRDogman

    ASRDogman Senior Member

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    Location:
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    Vehicle:
    2010 Prius
    Model:
    Two
    This might be silly, but are you pressing the brake pedal before and during pressing
    the "ready" button?
     
    #3 ASRDogman, Nov 7, 2024 at 10:45 PM
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