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VCS, Red Exclamation, Yellow Exclamation, Check Engine Lights all suddenly turned on

Discussion in 'Gen 2 Prius Technical Discussion' started by vttym, Aug 31, 2014.

  1. vttym

    vttym Junior Member

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    Hey everyone,

    While my car was idling in a CVS parking lot, the VCS, Red Exclamation in a triangle, Yellow Exclamation in a circle and the check engine lights all suddenly turned on.

    In reading the forums, it seems the two most likely issues would either be the inverter pump (which I had replaced as part of the recall, and I see the fluid moving in the reservoir), or possibly a bad 12v battery (which I had replaced last year with the forum recommended Optima Yellow Top).

    I checked for error codes, and there were numerous ones there at first, but I think that might have been related to the old 12v battery dying (I never reset after that). I cleared the codes, and no new codes are generating.

    The car has 193,000 miles on it. I have had no performance issues with driving it up until now. I get the oil changed regularly - with the last few oil changes, I've noticed that the car is burning through all of the oil (it's not leaking, as I don't have any oil stains on my driveway). Not sure if that's related to this issue or not.

    Just wondering if anyone has any thoughts that I should consider before I take it into the dealer (which I'd like to avoid if possible).

    Thanks.
     
  2. bisco

    bisco cookie crumbler

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    optima's have been a problem, i would check that out. hopefully, it's not your hybrid battery, but at 193k...
     
  3. vttym

    vttym Junior Member

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    I forgot to mention that the car still runs and is drive-able.
     
  4. bisco

    bisco cookie crumbler

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    i guess drive it and see what happens. if it throws another code, post it here so the experts can help. all the best!(y)
     
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  5. vttym

    vttym Junior Member

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    I did do a battery check as part of the troubleshooting -

    Press “Vehicle Signal Check” - the battery voltage is shown and should be about 12.4 to 12.8 Volts (normal for an unloaded battery) [My voltage was 12.6]
    - Again without brake pedal, press Power button and release to put a current load on the battery - the voltage should stay above 12.0V (if less than 12.0V the battery is not well, or there is a fault or unusual load somewhere) [my voltage was 11.9 - I thought this was "close enough", but maybe not?]
    - Press brake pedal and press Power button once to enter "Ready" mode - the battery is now charging at about 14V (if less than 13.6V or more than 14.4 there may be a problem with the charging circuit) [my voltage was 14.1]

    The second test worried me a little, but considering the other tests were OK, and how close it was to normal, I thought it was ok.
     
  6. bisco

    bisco cookie crumbler

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    could be on it's way out. small fluctuations can make the computers do funny things. i think a meter on the posts in the morning before starting is a better test.
     
  7. vttym

    vttym Junior Member

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    Thanks for the responses. I sure hope it's not the Optima battery, considering I just replaced it.. then again, considering the alternatives, maybe that's not so bad.
     
  8. bisco

    bisco cookie crumbler

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    should be under warranty.
     
  9. vttym

    vttym Junior Member

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    Well, I drove it a bit more, and what the car was doing wasn't encouraging.

    On the 10 minute drive, the battery never got above 2 red bars (mostly was 1 red), and I rarely saw the ICE charging the battery - only braking consistently would show arrows charging the battery. The ICE ran constantly, and there was a significant delay between when I'd push the pedal down, and when I'd feel the engine move the car. Towards the end of the drive, I was flooring it, and not moving much at all. The engine would rev, but it felt like the gear wasn't catching (as if I was holding the clutch down in a manual transmission). After a few seconds, the gear caught and it moved, but it was no where near the power it normally would be, and I was struggling to get up the small hill my house is on.
     
  10. dorunron

    dorunron Senior Member

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    Wait for it to code, then pull the codes. That should define what the problem really is. Sounds like the 12 volt may not be the problem. A little weak, but still usable IMO.

    FWIW, the Optima's are not what they used to be IMO.
     
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  11. bisco

    bisco cookie crumbler

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    wow, i can't believe the dash didn't light up!
     
  12. bisco

    bisco cookie crumbler

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    when you say 'burning through all of the oil', do you really mean all?:eek:
     
  13. vttym

    vttym Junior Member

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    Yes - There were times I would have to add oil to make it 5k miles for the oil change. The last few times I had an oil change, they basically said I was running on little to no oil.

    Oh, the dash was lit up - it had all the lights I mentioned above on. But I wanted to see if it was driveable, and maybe get it to generate a code (it did not, at least not a code that I could see in the screen you get to from turning the lights on and off while holding Info)
     
  14. bisco

    bisco cookie crumbler

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    well, that can't be good for the ice, don't you check it between changes? i'm not sure how it plays into the battery problem though.
     
  15. vttym

    vttym Junior Member

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    Friend came by with a reader, and pulled 2 codes down: P3014 and P0A80. If I'm reading my search results right on these, that's the traction battery (p0A80) and Battery Block 4 becomes weak (P3014).

    Perhaps I should just start looking at a new vehicle.. Toyota's running 0% APR for 60 months for the next few days..... it was a good run, right? :)
     
  16. bisco

    bisco cookie crumbler

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    exactly, go for it!:cool: