Left Front Wheel Speed Sensor

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by CMJAnew, Jun 11, 2022.

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  1. CMJAnew

    CMJAnew Junior Member

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    Hey folks, 2012 C with 430,000ish miles (can’t say for sure because lost my odometer etc at 403,000 miles).
    Anyway, using a scan tool I’m getting; LEFT FRONT “current” and little or no speed reading from that wheel. I have replaced the sensor - all 4 actually - before purchasing a scan tool.
    So, do you think this could be a bad sensor out of the box? Or something within the wheel (I’ve cleaned the ring as best I could.
    Thanks
     
    #1 CMJAnew, Jun 11, 2022
  2. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    Wheel bearings and their related speed sensors are one of those parts where the OEM part really does work better than the aftermarket version, in my experience.
     
    #2 Leadfoot J. McCoalroller, Jun 11, 2022
  3. ChapmanF

    ChapmanF Senior Member

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    The tone ring, sensor, connections and wiring, and ECU are all on the list of suspects. Sometimes it helps to use a meter or scope to just find out exactly how far the signal is and isn't getting, and then look for why.
     
    #3 ChapmanF, Jun 11, 2022
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