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Prius c many trouble codes

Discussion in 'Prius c Main Forum' started by AbdelRahim, Dec 23, 2022.

  1. AbdelRahim

    AbdelRahim Junior Member

    Joined:
    Jan 25, 2018
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    Location:
    Jordan
    Vehicle:
    2014 Prius c
    Model:
    Four
    So recently I started to get some weird trouble code with my Prius c 2014
    I have tried to disconnect the 12v battery but they didn't disappeared, so I have swapped the battery with a new one since it is 9 years old, but still getting same error, noting that I haven't deleted the code from the first place
    No check engine appears on the dashboard not ABS error sign
    I am using a Bluetooth OBD2 connection and using OBD2 scanner app from Google play
    The rest of the codes are related to defected TPMS sensor, popped up Airbags and telematics codes which I couldn't find any thing related to it

    ============1==============
    C1241
    Raw code: 5241
    ECU: ABS control unit #2
    Status: Confirmed
    Toyota: IG Power Source Circuit (MR, Cel.)
    ============26==============
    U0142
    Raw code: C142
    ECU: Entry & start / Smart key
    Status: Confirmed
    OBDII: Data bus, body control module (BCM) B - no communication
    ============27==============
    B2287
    Raw code: A287
    ECU: Power source control
    Status: Confirmed
    ============28==============
    U0140
    Raw code: C140
    ECU: Power source control
    Status: Confirmed
    OBDII: Data bus, body control module (BCM) - no communication
     
  2. ColoradoBoo

    ColoradoBoo Senior Member

    Joined:
    Jul 19, 2019
    963
    631
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    Location:
    Monument, Colorado USA
    Vehicle:
    2017 Prius
    Model:
    Two
    I recommend a higher-end scanner...you might be seeing codes that are old and are due to the 12-volt battery dying. (It's a known issue with a bad 12-volt battery)
    Do your auto-parts stores have a scanner you can borrow or run a scan for you? You'll want to record all the codes, then erase them all and run the car for a bit and see which ones return.
     
  3. AbdelRahim

    AbdelRahim Junior Member

    Joined:
    Jan 25, 2018
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    Location:
    Jordan
    Vehicle:
    2014 Prius c
    Model:
    Four
    I will visit the nearest one and try to delete them all after record them and try to see what happen
     
  4. bisco

    bisco cookie crumbler

    Joined:
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    why are you reading codes? any trouble lights or issues with the car?
     
  5. AbdelRahim

    AbdelRahim Junior Member

    Joined:
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    Location:
    Jordan
    Vehicle:
    2014 Prius c
    Model:
    Four
    I have noticed a high fuel consumption, although I have started to notice that my car is not responding to smart remote clicks and only after many clicks it works, and if you tried to close the windows when the car is turned off the light inside the car start to dim a little bit, not to mention also the sunroof doesn't response to button unless i press it many times, (and after it respond everything works perfectly then), i have tried to check 12v voltage before i changed it was dropping to 13.1 - 14 voltage while using the car and if i tested it after a long stoppage or pause time it drops to 11.7 voltage, so i changed it, before i did that i have noticed these codes also, i made it clear that i need to change the 12v battery, but after changing it the codes still exist, but there is no check engine nor any maintenance light showing up on the dashboard except for the airbags and TPMS
     
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  6. bisco

    bisco cookie crumbler

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    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    is there any accident history? you are getting airbag trouble light on the dash?
     
  7. AbdelRahim

    AbdelRahim Junior Member

    Joined:
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    Location:
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    Vehicle:
    2014 Prius c
    Model:
    Four
    Yes there was an accident, popped out steering and knees airbag but that is very very very old one i think it was on 2016
     
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  8. AbdelRahim

    AbdelRahim Junior Member

    Joined:
    Jan 25, 2018
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    Location:
    Jordan
    Vehicle:
    2014 Prius c
    Model:
    Four
    Below are the codes I am seeing, I have deleted them all if they return I will go to autoshop
    But what is wrong with smar key?
     

    Attached Files:

  9. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,173
    6,718
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    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Have you changed the battery in the key? There is a little coin cell in there.
     
  10. AbdelRahim

    AbdelRahim Junior Member

    Joined:
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    Location:
    Jordan
    Vehicle:
    2014 Prius c
    Model:
    Four
    Yes i have changed already before a month
     
  11. bisco

    bisco cookie crumbler

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    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    could those codes have always been there since the accident?
     
  12. AbdelRahim

    AbdelRahim Junior Member

    Joined:
    Jan 25, 2018
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    Location:
    Jordan
    Vehicle:
    2014 Prius c
    Model:
    Four
    I doubt that cause in 2019 there was a water inside fuel tank and the oxygen sensor and the check engine light came out, I have checked it using a high end obd2 from an Autocar shop, it weren't there