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Problem after replacing 12V battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Mess80, May 13, 2017.

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  1. Mess80

    Mess80 Junior Member

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    Hi there
    After replacing 12 v batter in my 2005 Prius the car is acting weirdly. I have a triangle of death and 3 warning signs on display: one with battery, second with car and exclamation mark and third with battery and main write in the bottom, see the picture.
    The car dies after few seconds running.
    Any thoughts?
    Thanks 20170513_210301.jpg
     
    #1 Mess80, May 13, 2017
  2. andrewclaus

    andrewclaus Active Member

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    Why did you replace the 12V battery?

    You may need to get codes read with a Toyota scanner. (Most scanners will not read Prius-specific codes, especially those relating to the hybrid system.) Without the codes, we're guessing.

    Do you have a full tank of fuel? Have you checked the engine oil and coolant?
     
    #2 andrewclaus, May 13, 2017
  3. dolj

    dolj Senior Member

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    What 12 V battery did you use to replace the old one? Did you ensure the new 12 V battery was fully charged before installing?

    Remove the earth cable from the car body and double check the connections at the +ve and -ve poles are clean and tight. Double check any other connections you may have disconnected are reinstalled correctly and are firmly in place.

    Check the body earth connection is clean on both the cable and car body and reattach and ensure it is tight.

    After that, see if you get any lights returning. If you get any warning lights come back, you will need to have the codes read, or, as Andrew says, it is all guess work.
     
    #3 dolj, May 13, 2017
    Last edited: May 14, 2017
  4. edthefox5

    edthefox5 Senior Member

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    The European models have slightly different displays than the American models but I'm guessing the car is in master alarm and is throwing a 12 volt battery alarm and a hybrid battery alarm.
    Guessing it needs a hybrid battery replaced and spdiesnt like the new 12 volt battery you installed.
    Like Andrew says you need to get All the cides pulled and post them back here.
     
    #4 edthefox5, May 13, 2017
  5. Mess80

    Mess80 Junior Member

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    Hi Andrewclause
    Thanks for the prompt reply.
    I changed the battery as the old ones was not holding the charge. When I left the car for 2 or more days, I had to jump start it.
    I am getting my friend with the scanner tomorrow so will see if any errors come up and will post it here. His scanner reads Prius codes as he checked it couple of years ago.

    Engine oil and collant levels seems to be OK and the i have over half a tank of petrol.
     
    #5 Mess80, May 15, 2017
  6. Mess80

    Mess80 Junior Member

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    Hi dolj
    I have used new generic battery from Halfords and it is fully charged.
    I have reinstalled the battery ensuring all is clean and no cables are missed.
    I guess will have to wait for the error codes
     
    #6 Mess80, May 15, 2017
  7. Moving Right Along

    Moving Right Along Senior Member

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    Not all 12v batteries will work well with the Prius. If your battery isn't rated as deep cycle, that could be causing a problem
     
    #7 Moving Right Along, May 15, 2017
  8. andrewclaus

    andrewclaus Active Member

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    Have you checked the voltage at the new battery with the car in ACC mode? Is it an AGM battery?
     
    #8 andrewclaus, May 15, 2017
  9. Mess80

    Mess80 Junior Member

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    Hey guys
    The guy with the scanner didn't make it and now I am on family holiday for 3 weeks, I will have checked everything once I am back.
    Thanks for all the sugestions, I will keep you posted
     
    #9 Mess80, May 19, 2017
    bisco likes this.
  10. Mess80

    Mess80 Junior Member

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    received_10213187715944902.jpeg received_10213187713984853.jpeg received_10213187713504841.jpeg received_10213187715944902.jpeg received_10213187714784873.jpeg received_10213187713344837.jpeg received_10213187714744872.jpeg received_10213187714064855.jpeg received_10213187713984853.jpeg received_10213187713504841.jpeg received_10213187715944902.jpeg received_10213187714784873.jpeg received_10213187713344837.jpeg received_10213187714744872.jpeg received_10213187714064855.jpeg Hi all
    I have finally had the codes checked.
    Please see at ached.
    Any thoughts?
     
    #10 Mess80, Jun 20, 2017
  11. andrewclaus

    andrewclaus Active Member

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    Looks like a problem with the battery charging circuit in the inverter. Measure voltage at 12V battery with car "Ready".
     
    #11 andrewclaus, Jun 20, 2017
  12. Mess80

    Mess80 Junior Member

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    I have changed couple of fuses and it drives now, however there are still errors, VSC and brake errors and the battery errors on the display.
    I had it checked at Toyota. they say DC DC converter needs to be replaced and it will cost me £2200!!!!
    I think it is time to buy a new car...
     
    #12 Mess80, Jul 11, 2017
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  13. bisco

    bisco cookie crumbler

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    agree. or you can look into a used converter and local mech.
     
    #13 bisco, Jul 11, 2017
  14. Patrick Wong

    Patrick Wong DIY Enthusiast

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    The root cause of the inverter failure probably was a botched jumpstart where the battery polarity was reversed. The best solution as bisco suggested is to buy a used inverter on eBay and install it.
     
    #14 Patrick Wong, Jul 11, 2017
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  15. uart

    uart Senior Member

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    Yep, which would fit in with the blown fuses too.
     
    #15 uart, Jul 11, 2017
  16. Mendel Leisk

    Mendel Leisk Senior Member

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    You'd think they'd protect it better. :mad:
     
    #16 Mendel Leisk, Jul 11, 2017
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