2012 PriusV slow speed turning intermittent stability/traction control

Discussion in 'Prius v Technical Discussion' started by Tom staiger, Aug 4, 2022.

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  1. Tom staiger

    Tom staiger New Member

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    Hello,
    I am tom. have a 2012 Prius V 5 door and need help with an issue of Stabilty control/ traction control.
    The PROBLEM: When driving at slow speed 5-20 mph and turning right or left, on good dry roads, the stability control intermittently and briefly applies the brake to a front or rear wheel and may cut power to all the wheels. Traction control error light illuminates briefly, but no error light stays on. The problem occurs when accelerating or decelerating and at constant speed but is more severe if harder accel/ or deceleration. Have replaced all four of wheel speed sensors and hubs with magnetic ring. Replaced the steering angle sensor, and the yaw sensor. Recalibrated the Yaw sensor and steering angle sensor with code checker that I have. Have run out of ideas of where to look to fix this problem. Wiring issues?, ESC module, traction control module? This vehicle has a very inconvenient method to disable the traction control involving depressing the gas pedal 6 times in a defined sequence.
    Any ideas or experience with this particular issue? Thank you
     
    #1 Tom staiger, Aug 4, 2022
  2. rjparker

    rjparker Tu Humilde Sirviente

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    Cv joints?
     
    #2 rjparker, Aug 5, 2022
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  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Rodents?
     
    #3 Mendel Leisk, Aug 5, 2022
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  4. Air_Boss

    Air_Boss Senior Member

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    Intermittent wiring faults at connectors, or the suggested rodents, or the suggested CV joints intermittently slipping.
     
    #4 Air_Boss, Aug 5, 2022
  5. Mendel Leisk

    Mendel Leisk Senior Member

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    IIRC there's cautions to not drive the car with traction control disabled; it might damage the transaxle.
     
    #5 Mendel Leisk, Aug 5, 2022
  6. Tom staiger

    Tom staiger New Member

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    CV joints are good. This 2012 PriusV has 54,000 miles
     
    #6 Tom staiger, Aug 5, 2022
  7. Tom staiger

    Tom staiger New Member

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    Wiring faults can be hard to find. But i'll look things over to see what i can find. Thanks for the reply
     
    #7 Tom staiger, Aug 6, 2022
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  8. Tim Jones

    Tim Jones Senior Member

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    Have u used a code reader?
     
    #8 Tim Jones, Aug 8, 2022
  9. mr_guy_mann

    mr_guy_mann Senior Member

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    Are all the tires the same size and condition? If the diameter is different then the system can falsely trigger.

    Posted via the PriusChat mobile app.
     
    #9 mr_guy_mann, Aug 10, 2022
  10. Tom staiger

    Tom staiger New Member

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    Tires are all same size and condition.
    And wheel alignment seems good.
     
    #10 Tom staiger, Aug 20, 2022
  11. BiomedO1

    BiomedO1 Senior Member

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    Has the car been in a major accident; lemon law recall, or been under-water?
     
    #11 BiomedO1, Aug 20, 2022
  12. jzchen

    jzchen Newbie!

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    Brake fluid level. Can you pop hood in the evening, let it sit overnight and then check brake fluid level in the morning without opening the driver door? Where is it at? Other way is check any wheel getting hot? (Brake work lately)?

    REVVL V+ 5G ?
     
    #12 jzchen, Aug 21, 2022
  13. Tom staiger

    Tom staiger New Member

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    thanks for your reply.
    Yes the car was in a front collision. The frame on left front needed some work to correct.

    Am in the process of checking wiring of left wheel speed sensor and yaw sensor
     
    #13 Tom staiger, Sep 4, 2022
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