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red exclamation battery controller code p300

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by bry, Jul 29, 2013.

  1. bry

    bry Junior Member

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    my wife calls and tells me the red exclamation triangle came on for about 30 seconds then when off.
    i scanned it for codes.
    it only had a stored code in the hv ecu of p3000.
    what does this code mean?
    thank you
     
    #1 bry, Jul 29, 2013
  2. JMD

    JMD 2012 Prius 4 Solar Roof

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    #2 JMD, Jul 29, 2013
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  3. nh7o

    nh7o Off grid since 1980

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    P3000 is not a valid Hybrid Battery Controller ECU code for the Gen II Prius (I assume yours is the 2007). JMD's link refers to a Gen I.

    What did you use to scan it?
     
    #3 nh7o, Jul 30, 2013
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  4. nh7o

    nh7o Off grid since 1980

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    #4 nh7o, Jul 30, 2013
  5. bry

    bry Junior Member

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    it is a 2007. a snap on solus ultra scanner. i went through each computer for codes and in the hybrid system it gave me options of the hv ecu and hv battery. the code was under the history codes for the hv ecu.

    i called the dealer and am taking it in tomorrow. the service writer seems to suspect the hv battery.
     
    #5 bry, Jul 30, 2013
  6. JMD

    JMD 2012 Prius 4 Solar Roof

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    #6 JMD, Jul 30, 2013
  7. nh7o

    nh7o Off grid since 1980

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    Please list the codes that the dealer finds here. I am aware of a number of cases where various scanners have come up with erroneous readings when scanning the Prius. Techstream seems to be the best and final answer.
     
    #7 nh7o, Jul 30, 2013
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  8. nh7o

    nh7o Off grid since 1980

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    #8 nh7o, Jul 30, 2013
  9. bry

    bry Junior Member

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    the code was for a low voltage for the 12v battery. it was a history code. i had replaced the 12v battery with an optima. its most likely that was when the code was set.
    the dealer found no other problems. they did do the steering shaft recall.
     
    #9 bry, Jul 31, 2013
    JMD likes this.
  10. JMD

    JMD 2012 Prius 4 Solar Roof

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    Good news :)
     
    #10 JMD, Jul 31, 2013
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