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Check Hybrid System after 12 volt battery replacement

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by djspriusc15, Feb 24, 2021.

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  1. djspriusc15

    djspriusc15 Junior Member

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    I left my 2015 Prius C sitting too long and couldn’t start it the other day. I picked up a new 12 volt battery and replaced it but now when I start the car I am getting the CHECK HYBRID SYSTEM STOP VEHICLE message. Replacing the battery was pretty straightforward it did I miss a step somewhere?
     
    #1 djspriusc15, Feb 24, 2021
  2. PriusCamper

    PriusCamper Senior Member

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    Did you fully clip down your Orange safety plug? That's usually the problem... Check out a YouTube video on how it's done to be certain.
     
    #2 PriusCamper, Feb 25, 2021
  3. ChapmanF

    ChapmanF Senior Member

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    Did you fuss at all with the orange safety plug when replacing the 12 volt battery?
     
    #3 ChapmanF, Feb 25, 2021
  4. djspriusc15

    djspriusc15 Junior Member

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    Didn’t mess with it but I’m going to check it now. Thanks!

    I didn’t mess with the orange plug at all. I’m going to check it now though. Thanks!
     
    #4 djspriusc15, Feb 25, 2021
    Last edited by a moderator: Feb 26, 2021
  5. bisco

    bisco cookie crumbler

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    that message should have a related trouble code
     
    #5 bisco, Feb 25, 2021
  6. PriusCamper

    PriusCamper Senior Member

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    Yea... I'm thinking this is a ghost post where they never reply again... But maybe I'm just having a bad day?
     
    #6 PriusCamper, Feb 25, 2021
  7. bisco

    bisco cookie crumbler

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    until they prove otherwise...
     
    #7 bisco, Feb 25, 2021
    PriusCamper likes this.
  8. ChapmanF

    ChapmanF Senior Member

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    Appears to be another case of us carrying on the conversation while the OP sits in the moderation queue.

    There's no particular reason to go check the orange interlock switch if you never fussed with it in the first place. Poster saying it's "usually the problem" may have read your post quickly and thought you replaced the other battery.
     
    #8 ChapmanF, Feb 26, 2021
  9. sam spade 2

    sam spade 2 Senior Member

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    Did you fully charge the new 12 V battery before installing it ?
    Many come half charged or less.
     
    #9 sam spade 2, Feb 26, 2021
  10. djspriusc15

    djspriusc15 Junior Member

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    Still getting the hybrid system warning. I made an appointment to take the car into the dealership this week to have them take a look at it.
     
    #10 djspriusc15, Feb 28, 2021
  11. PriusCamper

    PriusCamper Senior Member

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    Don't wast your time with a Toyota Stealership... Find an honest mechanic or friend to help you... The dealership will give you an outrageous repair price and then try to sell you a new car with a "generous" trad-in offer, which isn't generous at all.
     
    #11 PriusCamper, Mar 1, 2021
  12. sam spade 2

    sam spade 2 Senior Member

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    Good advice.......NOT.
    While many dealership service departments seem pretty incompetent, independent shops and "friends" tend to know even less.
     
    #12 sam spade 2, Mar 1, 2021
  13. djspriusc15

    djspriusc15 Junior Member

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    P0B47 is the code that came up.
     
    #13 djspriusc15, Mar 2, 2021
  14. djspriusc15

    djspriusc15 Junior Member

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    Update. Dealership looked at the car and said the Hybrid System Warning registered code P0B47 and is due to a bad battery smart unit ECU. The actual terms used on the estimate was “Miscellaneous Body Electrical Repair- Battery Smart Unit ECU p0b47 code present”. However they are stating this is not covered under the hybrid system warranty. Waiting for a call from the service manager for more details and explanation.
     
    #14 djspriusc15, Mar 2, 2021
  15. bisco

    bisco cookie crumbler

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    it is usually corrosion on the pins
     
    #15 bisco, Mar 2, 2021
  16. PriusCamper

    PriusCamper Senior Member

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    Battery ECU from a Toyota Stealership is $800 and it takes an hour to put in but knowing those crooks they'll probably claim it's a 3 hour job at or above $100 an hour.

    Meanwhile in the real world you can buy a used battery ECU for less than a hundred dollars online and an honest mechanic who doesn't have the costs related to running a huge shop will charge $40 to $80 for one hour of labor to do the job.
     
    #16 PriusCamper, Mar 2, 2021
  17. djspriusc15

    djspriusc15 Junior Member

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    Shouldn’t this wouldn’t be covered under the hybrid components warranty?
     
    #17 djspriusc15, Mar 3, 2021
  18. jerrymildred

    jerrymildred Senior Member

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    I would think it would have to be covered. It wouldn't have a battery ECU if it didn't have a battery.
     
    #18 jerrymildred, Mar 3, 2021
  19. sam spade 2

    sam spade 2 Senior Member

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    What you or I or anybody else thinks doesn't matter.
    You need to look at a copy of the warranty that covered your model when it was new.
    The "warranty help line" at Toyota should be able to supply that to you.
     
    #19 sam spade 2, Mar 3, 2021
  20. ChapmanF

    ChapmanF Senior Member

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    The warranty and maintenance guide is free to download under the Manuals tab at techinfo.toyota.com.
     
    #20 ChapmanF, Mar 3, 2021
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