Logging to see trigger conditions for p0a80 p3000 - which process?

Discussion in 'Gen 2 Prius Technical Discussion' started by Andrew Vanis, Jun 15, 2026 at 4:20 PM.

  1. Andrew Vanis

    Andrew Vanis Junior Member

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    Having p0a80 p3000 pop up mostly randomly (often with acceleration) and sometimes infrequently with various other C codes but not the same ones. Often it drives fine with no codes for long times.

    Want to see the conditions in place when code triggers.

    Searching it seems that Hybrid Assistant (HA) might be good for that and that Techstream (TS) may possibly be used.

    HA doesn't aways re-connect well after getting back in the car and frustratingly it seems that the codes come up while I'm trying to reconnect.

    Thoughts on how to approach this?
     
    #1 Andrew Vanis, Jun 15, 2026 at 4:20 PM
  2. PriusCamper

    PriusCamper Senior Member

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    Electrons are weird... Back in my NiMH rebuilding days when doing diagnostics I could get a P3000 several times in a day then go several weeks with no warning lights at all.

    You can watch Dr. Prius app data as you drive if you're curious. And you can clear codes as much as you want as long as battery temperature doesn't get too hot.

    Beyond that, rebuilding or replacing your pack is the correct answer to all your questions.
     
    #2 PriusCamper, Jun 15, 2026 at 5:55 PM
  3. rjparker

    rjparker Tu Humilde Sirviente

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    The P0A80 code triggering algorithms are considered proprietary intellectual property of Toyota.

    However if still under warranty (10 years 150,000 for all newer models and for older models in CARB states) that code is enough for Toyota to replace the hv battery free.
     
    #3 rjparker, Jun 15, 2026 at 6:01 PM
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