2010 Prius no electronics come on!

Discussion in 'Gen 3 Prius Main Forum' started by cjboutte, Mar 4, 2020.

  1. cjboutte

    cjboutte Junior Member

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    I have a 2010 that has been sitting for a couple of years. I have a new 12v battery and the hybrid battery was replaced with a reman about three years ago. I have replaced all the key fob batteries also. The electric door locks do not work, none of the dash electrical instruments come on. I have the 12v battery fully charged. The reason it has sat so long is the engine blew a head gasket and it has over 250k on it.

    Is there a way to charge the hybrid battery?
     
  2. Georgejaunty18

    Georgejaunty18 New Member

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    Its a specialist job best to take it to a dealer
     
  3. ASRDogman

    ASRDogman Senior Member

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    You can purchase the Prolong battery charger. About $300, if you get the whole kit, about $650.
    You can go to their page for prices.

    You may need to clean the posts and cables connectors for the battery. Which if you have a new fully charged
    battery, you probably already did that. And since it sat for so long, check for critters...

     
  4. Prodigyplace

    Prodigyplace Senior Member

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    The Prolong Charger is the best solution for charging the Hybrid battery but if none of the 12 volt accessories work (door locks, dome light, etc.) there is a 12 volt issue that needs to be addressed first. Did you try jump starting it at one time? There is a big fuse that may have blown. What is the voltage at the jump point under the hood?
     
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  5. bisco

    bisco cookie crumbler

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    There is no correlation between the hybrid battery and the electronics.

    You need to figure out why 12 volts isn’t getting from the battery to the ecu’s and relays
     
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  6. BZzap!

    BZzap! Senior Member

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    Do you have any accessories that come on? I.E., headlights, dome lights, etc.?
     
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  7. fotomoto

    fotomoto Senior Member

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    I'd hazard to guess that the used 3 year old HV battery is dead-dead and would not suggest getting a grid charger right off the bat.

    This car requires a lot money and effort to get RELIABLY rolling again and considering the mileage will never be worth any reasonable amount. Sell 4 parts.
     
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  8. Prodigyplace

    Prodigyplace Senior Member

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    Troubleshooting & replacing the 12 volt battery s not a specialist job.
    If the traction battery needs charging the dealer would need to get a charger from Toyota Corporate.
    As far as the engine is concerned, many people have had good experiences replacing the engine with one from a wreck.
     
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  9. dig4dirt

    dig4dirt MoonGlow

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    If that head gasket still needs to be addressed, then this is nothing but a can of worms.
    You will be dealing with one thing after the other.....as you already are seeing.
     
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  10. cjboutte

    cjboutte Junior Member

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    I’m working out of state right now but thank you for all the information. I’ll check the big fuse under the hood when I get back home.
     
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