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ICE won't start

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Shicoco, Aug 6, 2019.

  1. Shicoco

    Shicoco New Member

    Joined:
    Aug 6, 2019
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    Location:
    Florida
    Vehicle:
    2006 Prius
    Model:
    N/A
    Hey all,

    I have a 2006 Prius with about 225k miles on it. I'm not the first owner, and I'm not sure the HV battery has ever been replaced, but at this many miles, I'm sure it has.

    The car was running fine, the charge indicator showed that the battery would charge all the way up, and my gas mileage was about 38 mpg (down from about 42, but hey, it's old). Two weeks ago, lightning struck very close to the Prius (within 20-30 feet). I'm not sure the lightning caused any damage. The next day, I go to drive it, and it's running on the electric motors only, the ICE will not start. I get it towed to a shop, and get the following error codes:

    U0100
    P3000 (the mechanic didn't tell me the suffix)

    Any advice?
     
    #1 Shicoco, Aug 6, 2019
  2. bisco

    bisco cookie crumbler

    Joined:
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    boston
    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    is there gas in it?

    i think you're gonna need the subcodes
     
    #2 bisco, Aug 6, 2019
    Raytheeagle likes this.
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
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    Two
    DTC P3000 is logged by the hybrid vehicle ECU and reports the high voltage battery ECU reported a problem. You need to know what DTC was logged by the HV battery ECU.

    DTC U0100 is logged by the hybrid vehicle ECU and reports lost communications with the engine ECU.

    Maybe the lightning strike induced high voltage into the Prius wiring harness which has caused damage to one or more ECUs. This does not sound like a problem that will be easy to fix since the communications failure probably is suppressing other DTC which would give you visibility into the root issues.
     
    #3 Patrick Wong, Aug 7, 2019
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