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2005 Prius,ABS ,Check Engine, Red Traingle-Codes found

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Kay-Kay, Sep 10, 2015.

  1. Kay-Kay

    Kay-Kay Junior Member

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    My 2005 Prius was working quite fine until few days ago when the dash lit up with ABS, Check Engine, red triangle, ((!)), and the red car symbol on MFD. Additionally, the hybrid battery fan now comes on once in a while. Mileage on car is 164K; changed the 12v and hybrid batteries at about 153K. Running it through codes scanners, the following codes were read off it:

    * B1421 (Solar Circuit malfunction, passenger side. Also, AC malfunction [although on the car, the AC still seems to work fine])
    * P3000 (Hybrid control fault, and cruise control error)
    *C2318 (Low voltage error-power supply malfunction)

    I have checked 12V status using the diagnostic mode this morning and found it to be 12.0V (although 2 days ago when I checked it was 11.8V.)
    I have not used the car since as I wouldn't want it park up by the roadside. I'm scarred to think its the hybrid battery again... For now, the car still moves well.. Please what should I check to confirm real cause(s) of all these?
     
    #1 Kay-Kay, Sep 10, 2015
  2. bisco

    bisco cookie crumbler

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    12 volt battery. pull it, test it, charge it, test it, replace if necessary.
     
    #2 bisco, Sep 10, 2015
  3. vskid3

    vskid3 Active Member

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    How long ago was the 12v battery replaced? 11.8 and 12v are both low, a fully charged 12v should actually be about 12.6v.
     
    #3 vskid3, Sep 10, 2015
  4. Kay-Kay

    Kay-Kay Junior Member

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    12V was replaced around June 2014. Replaced with the yellow top Optimum battery.
     
    #4 Kay-Kay, Sep 10, 2015
  5. JC91006

    JC91006 Senior Member

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    If you have a rebuilt hv battery, that should be your problem
     
    #5 JC91006, Sep 10, 2015
  6. Kay-Kay

    Kay-Kay Junior Member

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    Will look into charging it. Only constraint's that I only have the commercial battery charger available at the nearby workshop. I understand the Prius 12v doesn't have to be charged the same way. So, will need to read up on this to get it right.
    JC, that would be a big one for us that's why we're trying to find out if there are other checks we need to undertake to fix this.
     
    #6 Kay-Kay, Sep 10, 2015
  7. bisco

    bisco cookie crumbler

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    where did you get the rebuilt battery?
     
    #7 bisco, Sep 10, 2015
  8. JC91006

    JC91006 Senior Member

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    Your 12v battery is not that bad, using the diagnostic mode in the car will drop the voltage reading from the actual resting voltage. So if you're reading 12v, it's probably around 12.4v or something.

    That is not the cause of your problem.
     
    #8 JC91006, Sep 10, 2015
  9. Kay-Kay

    Kay-Kay Junior Member

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    It was a dorman battery, bought through one of theIr online resalers....fcpeuro.com( although they are no longer carrying Toyota parts again).
     
    #9 Kay-Kay, Sep 11, 2015
  10. JC91006

    JC91006 Senior Member

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    If you bought a Dorman Rebuilt, then you have a 3 year warranty on it. The end result may not be so bad afterall.
     
    #10 JC91006, Sep 11, 2015
  11. Kay-Kay

    Kay-Kay Junior Member

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    One more thing l noticed: when l started the car this morning, l realised the ICE wouldn't cut off even when battery charging indicator stopped on the MFD (battery was charged to about 6 bars on the indicator)
    The ICE would still continue running, until the battery would go down and recharging recommenced.
     
    #11 Kay-Kay, Sep 11, 2015
  12. Kay-Kay

    Kay-Kay Junior Member

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    Yea, l need to reçheck that warranty if it's applicable here- we aren't in the US so l need to cross check if it covers overseas clients. Thanks for highlighting this.
     
    #12 Kay-Kay, Sep 11, 2015
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