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Prius Gen 1 ( 2001) power steering problem, any ideas?

Discussion in 'Generation 1 Prius Discussion' started by Dimkaps54, Sep 5, 2017.

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  1. Dimkaps54

    Dimkaps54 New Member

    Joined:
    Oct 15, 2016
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    Location:
    Greece
    Vehicle:
    2005 Prius
    Model:
    N/A
    Hello , i have a Gen 1 Prius and it has a problem with steering wheel. DTC errors are C1571 , C1572 and PS red light is On . When i am turning the wheel , at random times the wheel starts vibrating hard. It makes noises from the vibration. This lasts for 2-3 secs then it stops vibrating. After this at random time when turning it , it will ocur again . This can happen 2-3 times per minuite.
     
    #1 Dimkaps54, Sep 5, 2017
  2. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV


    I'm writing on my phone but that's a well-known first gen Prius issue. There was a warranty extension but I think you're past the end date now. The underlying cause is no different from the other gen1 issues related to old potentiometers getting noisy (big hand syndrome, heater servo tremors), except the steering torque sensor is a lot more work to get to and clean. I finally bought a cheap one from a junkyard just to figure out how it comes apart. Look for a thread called "steering gear jitters".

    -Chap
     
    #2 ChapmanF, Sep 6, 2017
    DLC82SV, Brian in Tucson and WHCSC like this.
  3. Jim A

    Jim A New Member

    Joined:
    Sep 18, 2017
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    Location:
    Kingston WA
    Vehicle:
    2002 Prius
    Model:
    One
    I had the vibrating steering wheel when turning just after I purchased my 2002 Prius just last year. I found the little 12 volt battery located in the driver's side of the trunk was caput. As I understand this little battery is not used to start the generation 1 Prius. The vibrating steering wheel has not returned.
     
    #3 Jim A, Sep 18, 2017
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