1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Techstream triggers new errors

Discussion in 'Gen 3 Prius Technical Discussion' started by ilovetoracecross, Feb 3, 2020.

  1. ilovetoracecross

    ilovetoracecross Junior Member

    Joined:
    Nov 24, 2017
    39
    21
    0
    Location:
    southampton
    Vehicle:
    2011 Prius
    Model:
    N/A
    Hi all. So got techstream up and running in a boot camped mac. Connected to car etc.

    This was all brought about by replacing the clock spring in my 11 prius. Continued error light (traction control error on left, the squiggly tire track one) led me to believe i needed to zero the steering wheel position sensor on the clock spring.

    Info here led me to open up techstream, try to reset the memory in the vsc/abs/vtrac computer. Tried that, error message still persists. Further info suggested entering "test mode" to reset all those sensors etc.

    I did that, abs light and steering wheel light flashed as per instructions, but now have a bunch more errors that we're never on before.

    For some reason abs error, steering wheel error, and parking brake warning light (says "brake") are lit.

    Now im supposed to be leaving for work, but obviously would love to deal with this prior if anyone has ideas. Thanks
     
    #1 ilovetoracecross, Feb 3, 2020
  2. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,808
    15,464
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    As long as you've got Techstream there, what are the trouble codes behind those lights, by the way?
     
    #2 ChapmanF, Feb 3, 2020
    SFO likes this.
  3. ilovetoracecross

    ilovetoracecross Junior Member

    Joined:
    Nov 24, 2017
    39
    21
    0
    Location:
    southampton
    Vehicle:
    2011 Prius
    Model:
    N/A
    Chapman when i enter techstream, govto abs/vsc/trac, hit enter i iet
    C1231 steering angle sensor circuit
    C1345 linear solenoid valve learning offset undone. Thats Thats it
     
    #3 ilovetoracecross, Feb 3, 2020
  4. ilovetoracecross

    ilovetoracecross Junior Member

    Joined:
    Nov 24, 2017
    39
    21
    0
    Location:
    southampton
    Vehicle:
    2011 Prius
    Model:
    N/A
     
    #4 ilovetoracecross, Feb 3, 2020
  5. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,808
    15,464
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    The C1345 is easy to deal with. I'm not so familiar with C1231; you'll probably want to review the troubleshooting steps for it in the repair manual (more info).
     
    #5 ChapmanF, Feb 3, 2020
  6. ilovetoracecross

    ilovetoracecross Junior Member

    Joined:
    Nov 24, 2017
    39
    21
    0
    Location:
    southampton
    Vehicle:
    2011 Prius
    Model:
    N/A
    Yes. Fixed that. Still having my steering issue but ordered ANOTHER clock spring.


    Since I've got you, what needs to be done in techstream to replace the clock spring?
     
    #6 ilovetoracecross, Feb 3, 2020
  7. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,297
    4,235
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Here is the workup for DTC C1231 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21avn/cic12313.pdf

    Here is the workup for DTC C1345 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/21avn/cic13456.pdf
     
    #7 SFO, Feb 3, 2020
    Raytheeagle likes this.
  8. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,808
    15,464
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    I don't think anything is needed in Techstream to replace the clockspring. You unplug the old one and plug in the new one.

    Now, I think there is a steering angle sensor that's integrated with the clockspring, and the new ones have some kind of break-off pin or other arrangement to make sure it's on center when you install it. If I remember right. Perhaps worst case, if that doesn't happen right, an ECU will say "hmm, is your steering sensor zeroed?" and there might be a utility in Techstream for that if needed, but it's not something I've done.
     
    #8 ChapmanF, Feb 3, 2020
  9. ilovetoracecross

    ilovetoracecross Junior Member

    Joined:
    Nov 24, 2017
    39
    21
    0
    Location:
    southampton
    Vehicle:
    2011 Prius
    Model:
    N/A
    So. In the end there was a "piston reset" function in techstream, that reset the abs and made that a ok.

    Im still dealing with the slip indicator light, and started a new thread for that
     
    #9 ilovetoracecross, Feb 15, 2020
    SFO likes this.
(You must log in or sign up to post here.)