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2004 prius PS warning light

Discussion in 'Gen 2 Prius Technical Discussion' started by mmmadog, May 1, 2020.

  1. mmmadog

    mmmadog Junior Member

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    Went to leave in the car and the read triangle of death greeted me and main screen said PS. No warning previous to this but now have no power steering and checked for codes with ODBlink and nothing. This is a hydraulic power steering system?? Checked all fluids and everything looks fine. Do I need a new pump??. Car does have over 220k. any help much appreciated.
     
    #1 mmmadog, May 1, 2020
  2. bisco

    bisco cookie crumbler

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    electric. you need tech stream diagnostic software from amazon, and a windows laptop
     
    #2 bisco, May 1, 2020
  3. dolj

    dolj Senior Member

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    Or Torque Pro if you have an android device and your dongle is compatible with Torque Pro. You need the Pro version if you want to interrogate all the Prius ECUs, like the power steering ECU. There is a code in there, your current solution just can't see it.
     
    #3 dolj, May 2, 2020
  4. mmmadog

    mmmadog Junior Member

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    I would think the OBDlink would bring up a simple code other wise it's junk. Did watch youtube video and one guy tapped on the power steering control module and it worked again. I tried it and what do you know it's working again.Going to get a spare from the junkyard just in case. Thanks again.........................Matthew
     
    #4 mmmadog, May 3, 2020
    bisco likes this.
  5. bisco

    bisco cookie crumbler

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    maybe corrosion or a bad solder joint

    unfortunately, because of priuses 9 computers, most readers are totally confluxed
     
    #5 bisco, May 4, 2020
  6. dolj

    dolj Senior Member

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    It depends on what you base your assumption and how you define a simple code.

    The most basic of code readers will only interrogate the ECM, some others add the SRS ECU (airbag system) and/or ABS ECU.

    The reader you want is one that reads all of the Prius' ECUs and interprets the data correctly.
    If it does what it says on the box it will do, then it is not junk. If you are trying to something that is outside of these functions, it doesn't make it junk, it just makes it useless.
     
    #6 dolj, May 5, 2020
  7. Desiree Vigil

    Desiree Vigil Junior Member

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    If I buy one off amazon can it tell me why my car (05 Prius ) won’t turn off sometimes ? Also the cluster lights don’t work sometimes as well (no speedometer)!
     
    #7 Desiree Vigil, May 8, 2020
  8. 05PreeUs

    05PreeUs Senior Member

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    Geeze, the Prius does not have a PS pump, nor fluid! It was one of the first mass-market vehicles to use "EPS" or Electric Power Steering.
     
    #8 05PreeUs, May 8, 2020
  9. dolj

    dolj Senior Member

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    You likely have a failed combination meter. These threads are a good starting point:

    combination meter repair - DIY

    T-SB-0172-09 Combination Meter - Intermittent Display

    In both threads read the first one or two pages then skip forward to the last two or three pages.

    Matt @Texas Hybrid Batteries does an exchange service for refurbished units good price, lifetime warranty, and ODO configured to your current mileage. Click the link and then click Start a Conversation to make contact.
     
    #9 dolj, May 9, 2020
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