Dash Lights Brake, !, abs. vsc, srs all on but no codes?

Discussion in 'Gen 2 Prius Main Forum' started by 2genowner, Nov 11, 2025 at 12:58 AM.

  1. 2genowner

    2genowner New Member

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    all the above mentioned Lights are on and cant seem to find out why or reset them
    Tried a couple mentioned items like go into Diagnose mode And can get into that mode but does not seem to be anything to reset. Replaced 12 v battery already as it was getting weak 20251106_110532.jpg
    Any other ideas on what to try next. I think it all started when the 12 v battery was giving me issues but have replaced it and not sure how to clear these lights
     
  2. Brian1954

    Brian1954 Senior Member

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    Have you tried using a OBD2 scanner to read the trouble codes?
     
  3. ChapmanF

    ChapmanF Senior Member

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    The "how to clear these" question puts the cart before the horse.

    What you really want is to find out why they are on. Then you can fix that, which is the real way to get the lights to stay off.

    If you don't have an OBD-II scan tool that is able to read the brake system codes, you can read them like this:

    Blink (a/k/a Flash) Codes – How to. | PriusChat
     
  4. 2genowner

    2genowner New Member

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    odbII scanner showed no codes but i hooked up tech stream and got the codes

    C1343 Hydraulic issue rt rear. I did replace the leaking wheel cyld on that side and I let it gravity blead maybe need to do more

    B1831 Open in Driver Side Curtain Shield Airbag (D) Squib Circuit

    A couple Air conditioner ones but not worried about those right now

    B1271 History as I already replaced the Capacitor
     
  5. Brian1954

    Brian1954 Senior Member

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    It sounds like it is time to do a proper bleed procedure.