P0AD915 Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery.

Discussion in 'Gen 5 Prius Main Forum' started by Siyaar, Jul 13, 2025 at 12:32 AM.

  1. Siyaar

    Siyaar New Member

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    2023 Prius
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    Any Toyota Tech around who can help troubleshoot this? I'm willing to pay for the service. Looking for someone knowledgeable about the HV battery wiring diagram and HV ECU CAN.
    (Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery.)
    Car won't go into ready mode, only shows ignition on.
    I've checked the fuses, HV battery grip, HV battery junction terminal box, and harnesses, but the error persists.
     
    #1 Siyaar, Jul 13, 2025 at 12:32 AM
  2. Brian1954

    Brian1954 Senior Member

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    If your car is still under warranty, call your dealership.
     
    #2 Brian1954, Jul 13, 2025 at 9:58 AM
  3. bisco

    bisco cookie crumbler

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    luscious garage. it has a new name, i'll try to remember. earthling automotive
     
    #3 bisco, Jul 13, 2025 at 1:38 PM
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