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Discussion in 'Gen 3 Prius Main Forum' started by Vastolrd, Aug 30, 2024 at 2:21 PM.

  1. Vastolrd

    Vastolrd New Member

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    Hi

    I have a problem with the Prius 3 2010.
    I replaced the steering columns. After the replacement, the car fired up normally, I did a test drive (without the driver airbag). After the ride, I parked, tightened the steering wheel and put on a airbag. Now the car does not want to go into ready mode (it turns on with the lights on dashboard). There are no errors in the computer.
    I noticed that the immobilizer light flashes all the time even with the ignition on.
    12V battery is brand new.
    I try to disconect 12v battery and main battery fuse.
     

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    #1 Vastolrd, Aug 30, 2024 at 2:21 PM
  2. bisco

    bisco cookie crumbler

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    no errors in what computer?
     
    #2 bisco, Aug 30, 2024 at 2:45 PM
  3. ChapmanF

    ChapmanF Senior Member

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    Do the brake lights light up in back as you're trying to go READY?
     
    #3 ChapmanF, Aug 30, 2024 at 3:40 PM
  4. Vastolrd

    Vastolrd New Member

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    They were so

    U0142
    U0155
    B1801
    B1504

    But all marked as historical. Their cleaning didn't change anything and didn't reappear.
     
    #4 Vastolrd, Aug 30, 2024 at 4:03 PM
  5. Vastolrd

    Vastolrd New Member

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    Yes.
     
    #5 Vastolrd, Aug 30, 2024 at 4:03 PM
  6. Tombukt2

    Tombukt2 Senior Member

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    But I'm not sure that there's anything in the steering column that would have to deal with your immobilizer You're immobilizer wasn't doing this before the steering column change and does that mean when you say steering column is that also the electric motor piece that's a whole piece or does that come apart and there again I don't think any of this has to deal with the immobilizer that's interesting that you're immobilizer is looking for something or the remotes not speaking to the immobilizer maybe You have a red light that lights on your key fob?
     
    #6 Tombukt2, Aug 30, 2024 at 5:23 PM
  7. ChapmanF

    ChapmanF Senior Member

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    No message on the MID like KEY NOT DETECTED or anything?
     
    #7 ChapmanF, Aug 30, 2024 at 7:30 PM
  8. Brian1954

    Brian1954 Active Member

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    The warning lights on the dash mean you have trouble codes that need to be read. You need a better scan tool than what you are using. Take a look at this thread for a review of different scan tools:
    https://priuschat.com/index.php?posts/3290690
     
    #8 Brian1954, Aug 30, 2024 at 7:37 PM
  9. ChapmanF

    ChapmanF Senior Member

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    It seems possible the lights on the dash are the ones normally seen in IG ON rather than READY state.

    The behavior of ending up in IG ON state when READY was intended can be seen if the brake light signal did not reach the right ECU(s) when the power button was pressed. In such a case, the car doesn't report any error, it just honestly thinks you wanted IG ON and not READY.

    #5 at least confirmed the brake lights come on at the rear of the car. There might still be an issue with the signal reaching an ECU. A scan tool that can show live data might shed some light. Even if it shows no trouble codes, the live data display could show the status of the brake pedal input, etc., at the moment the power button is pressed.
     
    #9 ChapmanF, Aug 30, 2024 at 7:50 PM
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