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Mysterious P3000 Code, no lights on dash

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by dylanjcole, Nov 15, 2024 at 3:00 PM.

  1. dylanjcole

    dylanjcole New Member

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    I was showing off the Dr. Prius app to a friend, and happened to check the hybrid battery error codes. To my surprise it came up with P3000. There have been no dash lights or any other indication that something is wrong. I had the car computer read by both NAPA and my local mechanic, and they didn't come up with any codes at all.

    What to make of this? Should I just clear the code and continue packing for my cross-country drive?
     
    #1 dylanjcole, Nov 15, 2024 at 3:00 PM
  2. dolj

    dolj Senior Member

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    Dr Prius has its uses but is not really a reliable (nor comprehensive) code scanner.

    I'd just ignore it.
     
    #2 dolj, Nov 15, 2024 at 10:27 PM
  3. mr_guy_mann

    mr_guy_mann Senior Member

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    In general, P3000 sets in the hybrid ecu when the high voltage battery ecu has codes. Dr Prius is handy for viewing battery voltages, but isn't capable of scanning all systems for codes.

    If there are no warning lights on then there's PROBABLY no serious faults. But I would personally want to know what's going on.

    Here's a thread that reviews several scantool apps and devices, a few are "all system" capable. Post 37 is the summary.

    https://priuschat.com/index.php?posts/3246758

    Posted via the PriusChat mobile app.
     
    #3 mr_guy_mann, Nov 16, 2024 at 10:10 AM
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