14 C4 current codes, help please

Discussion in 'Prius c Technical Discussion' started by Adventurer2112, Jul 10, 2025 at 9:49 PM.

  1. Adventurer2112

    Adventurer2112 Junior Member

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    Vehicle:
    2014 Prius c
    Model:
    Four
    Hi 2014 C level4 175,000 miles.
    I replaced MAF sensor.
    I replugged orange plug under rear seat.
    Thanks Brian.
    Car goes into ready, ice starts, car moves.

    These are now the current obd2 codes per Techstream ver 17.
    Current codes p0101 MAF circuit low,
    P0101D a/f sensor heater circuit performance bank1 sensor 1 stuck on
    P2118 throttle actuator control motor current range / performance
    P261C engine coolant pump B control circuit low
    U0293 Lost communication with hybrid vehicle control.

    How do I clear these DTc please?
    TIA
    Jack tickled she was running.
     
  2. Brian1954

    Brian1954 Senior Member

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    Please post a screenshot of Techstream showing Health Check and the trouble codes detected.
     
  3. Adventurer2112

    Adventurer2112 Junior Member

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    Vehicle:
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    Four

    Also C1231 steering angle sensor circuit
    C1311 open circuit in main relay 1
    C1345 Linear solenoid valve offset learning undone
    U0293 lost communication with hybrid vehicle control/ev control system.

    going to recharge 12v aux battery overnight.
    Jack
     
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  4. Adventurer2112

    Adventurer2112 Junior Member

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    Hi Brian,
    That’s where I’m
    Getting these DTC.
     
  5. Adventurer2112

    Adventurer2112 Junior Member

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    Posted
     

    Attached Files:

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  6. Brian1954

    Brian1954 Senior Member

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    You need to be concerned with the four current trouble codes that you listed in post #3. You do not need to worry about any of the history trouble codes.

    Charge the 12v battery tonight and run a new Health Check tomorrow. Include another picture showing the trouble codes (take a picture that shows the complete computer screen).

    Has any work been bone on the brake system since you owned the car?
     
    #6 Brian1954, Jul 10, 2025 at 10:44 PM
    Last edited: Jul 10, 2025 at 10:53 PM
  7. Adventurer2112

    Adventurer2112 Junior Member

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    Four
    Changed rear brake shoes.
    That’s it.