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Bad wheel bearing

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by DrewG13, Feb 28, 2019.

  1. DrewG13

    DrewG13 Junior Member

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    My 2013 has the brake, anti lock and ABS lights on. OBD says rr wheel anti lock sensor error, can't reset. I replaced this one 25k or so ago and just had my recall software updated and a new gel battery. Bad wheel bearing?
     
  2. ChapmanF

    ChapmanF Senior Member

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    It's easy to read a little too much into the diagnostic codes. The computer in the car isn't all-seeing and all-knowing, so when it sets a code having to do with a sensor, that doesn't always mean the problem is in the sensor. It means the computer is suspicious of the reading it gets from the sensor, and that reading has to get from the sensor, through the wire harness and connectors, all the way to the computer input. It's up to the human to figure out where the actual problem is in that path. There will be helpful troubleshooting steps in the repair manual where that code is discussed.
     
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  3. Jimi1976

    Jimi1976 Active Member

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    Doubt it’s a bearing. I had one fail a couple years ago. No codes....just felt the drag, and noticeable MPG drop.
    Easy fix in my garage.
     
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  4. tankyuong

    tankyuong Senior Member

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    Could be loose sensor plug
     
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  5. DrewG13

    DrewG13 Junior Member

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    Thank you all for the input. I will check the manuel and the connection. I also need back brakes anyway so it will be an easy fix if it is the connector.
     
  6. padroo

    padroo Senior Member

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    A visual inspection at the sensor and wiring where it is exposed to the harsh environment where it lives is a good starting point.
     
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  7. Robert Holt

    Robert Holt Senior Member

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    For information: did the bearing either “howl” or generate grinding noises or any kind of roughness as it was failing?
     
  8. DrewG13

    DrewG13 Junior Member

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    Bearing isn't making any sound, I was thinking it was the internal sensor that was kicking the dash lights.
     
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  9. DrewG13

    DrewG13 Junior Member

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    Voila problem solved, one of the pins broke off in the plug. Parts ordered here tomorrow. The people on this site are unbelievable.
     
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  10. Jimi1976

    Jimi1976 Active Member

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    Yes.
    I drove it for a few months before repairing it....and on the last week or so it was humming
     
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  11. Jimi1976

    Jimi1976 Active Member

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    And bob’s your uncle.....easy fix
     
  12. DrewG13

    DrewG13 Junior Member

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    Has anyone ever replaced the plug that attaches the bearing? The one I ordered has a connector and I couldn't see where that connector was?
     
  13. tankyuong

    tankyuong Senior Member

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    You can solder it directly and silicone
     
  14. DrewG13

    DrewG13 Junior Member

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    What about using straight wire connectors and heat shrink?
     
  15. Mendel Leisk

    Mendel Leisk Senior Member

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    Post a picture if you can. You'd almost need a macro lens though, pretty tiny. Those connectors are a pain, very difficult to pull off, and breakage prone.
     
  16. DrewG13

    DrewG13 Junior Member

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    I was talking about the wires not the pins.
     
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  17. DrewG13

    DrewG13 Junior Member

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    Here is where the ABS wire harness connects on the right side that I had to replace. All fixed.
    upload_2019-3-6_9-19-33.jpeg



    upload_2019-3-6_9-18-25.jpeg
     

    Attached Files:

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