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c1241 faut code Abs

Discussion in 'Gen 3 Prius Main Forum' started by Anil kumar, Jul 16, 2019.

  1. Anil kumar

    Anil kumar Junior Member

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    Anyone know what a fault code c1241 low or high power supply on AbsVscTrc model is
    Also some times when presing the brakes they seam weak nearly ran in to the back of someone today
    Also sometimes it seams as if the 12v battery is low
     
    #1 Anil kumar, Jul 16, 2019
  2. bisco

    bisco cookie crumbler

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    12v battery is low. how old is it?
     
    #2 bisco, Jul 16, 2019
  3. Anil kumar

    Anil kumar Junior Member

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    Not sure only had car a few months
     
    #3 Anil kumar, Jul 16, 2019
  4. Anil kumar

    Anil kumar Junior Member

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    Some times in the morning the dome and map lights are dim when doors are opened and once in ready mode they are normal brightness a bulbs are all leds
     
    #4 Anil kumar, Jul 16, 2019
  5. BZzap!

    BZzap! Senior Member

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    Have the12v battery tested. C1241 indicates low supply voltage. Your 12v battery is suspect.
     
    #5 BZzap!, Jul 16, 2019
  6. ChapmanF

    ChapmanF Senior Member

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    Strictly speaking, the code doesn't mean the 12 volt battery is low, it means the voltage reaching the brake controls is low. It can commonly be a wiring or connector problem; in fact, the typical likelihoods are such that Toyota doesn't even mention the 12 volt battery in the list of likely causes for the code.

    On the other hand, if you are also experiencing symptoms like dim lights all around the car, then that added information moves the battery way up into the running for being the culprit in your case.
     
    #6 ChapmanF, Jul 16, 2019
    Hypno72 likes this.
  7. Anil kumar

    Anil kumar Junior Member

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    I will get a replacement battery then when u say wiring or conector is there anything in particlar i should look for
     
    #7 Anil kumar, Jul 16, 2019
  8. ChapmanF

    ChapmanF Senior Member

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    If the battery solves the problem, there's nothing else to look for.

    If the problem remains, the next things to check are covered in the Repair Manual section for C1241 and the wiring diagram (more info).
     
    #8 ChapmanF, Jul 16, 2019
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