Ignition Starts, but ready light and dashboard light off

Discussion in 'Gen 2 Prius Main Forum' started by Prius in Maryland, Jan 1, 2020.

  1. Prius in Maryland

    Prius in Maryland New Member

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    I have a 2007 Prius with about 214k miles. After driving twice yesterday I went to start my car and the engine turns on, but the dashboard is completely dark and the ready light is off. Two years ago the hybrid battery was replaced and this month the regular battery was replaced. Any thoughts on what could be the issue?

    Thanks,
     
  2. PriusCamper

    PriusCamper Senior Member

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    Sounds like 12v battery replacement didn't go well... Possibly loose connections? Or possibly you bought an Optima pack? They don't do quality control the same way other battery sellers do it.
     
  3. TMR-JWAP

    TMR-JWAP Senior Member

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    Get in the car. With your foot NOT on the brake, press the power button. The MFD should turn on. Does it?
    Press the power button again, the dash should come alive. Does it?
    Put your foot on the brake, press the power button again. The car should go ready and should go into it's warmup routine. Does it?

    If the engine actually starts, then the car made it to ready mode. It may not indicate "ready" or any other information visually if the combination meter has failed.

    I went to start my car and the engine turns on, but the dashboard is completely dark and the ready light is off.

    The engine is not going to start if the car isn't in READY mode. Did you try putting it into gear and driving it? If it's a combo meter failure, you'll still be able to drive, even though the dash is dark.
     
  4. bisco

    bisco cookie crumbler

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    welcome!

    perhaps a bad combo meter? can you drive it?
     
  5. Itbteo

    Itbteo New Member

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    If you access the battery in the hatchback on the right side. You can unplug the battery from the top (not the normal battery connection) the top part has 2 plugs. Unsnap the larger of the 2 for 30 seconds and then plug it back in. Turn on car and it should work. We had this problem in our 2007 model that Toyota had no idea how to fix it. Battery was fine. Check out the video on YouTube as well. It will walk you through it if you have trouble.
     
  6. Prius in Maryland

    Prius in Maryland New Member

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    The battery was replaced at the dealer, but I’ll take it back to them tomorrow.

    I was able to test drive it, but then had a hard time turning off the engine. Had to keep my finger on the start button for 1 min.

    The dashboard does not come on even with my foot not on the pedal. This is what I see.
     

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    #6 Prius in Maryland, Jan 1, 2020
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  7. TMR-JWAP

    TMR-JWAP Senior Member

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    Congratulations, you are experiencing the classic symptoms of Combination Meter failure. Often, this 'blank out' occurs randomly for a while and progressively happens more often, eventually going to complete failure. Typically happens more often in colder weather. Sometimes, it's a one shot deal and it's done. Sounds like you may be falling under the one shot...

    Matt at Texas Hybrids ( a member on the Forum) was one of the early pioneers of repairing these meters. I believe his company charges around $225 to send you an updated meter assembly, programmed to your odometer mileage and refunds $75? when you return your old one to him. Many people have swapped out their own assemblies, as the dealership will want your first-born.
     
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  8. Prius in Maryland

    Prius in Maryland New Member

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    Thank you everyone. I disconnected the 12 volt battery cable for about 1 minute and the car started successfully.
     
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  9. Prius in Maryland

    Prius in Maryland New Member

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  10. Prius in Maryland

    Prius in Maryland New Member

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    Thanks. If this continues to happen I’ll reach out.
     
  11. edthefox5

    edthefox5 Senior Member

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    Oh it will continue to happen alright to the point where you will not be able to shut the car off without disconnecting the 12 volt battery in the hatch which is loads of fun. It gets worse fast.
    The colder it is outside the worse it gets. Does not like cold.

    Texas Hybrids on this site is the guy to use. Not sure what the price is these days for a new combo as I bought mine from him 2 years ago but I think it was $100 for the whole module.
     
  12. Priuslover09

    Priuslover09 Junior Member

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    If you need a battery replacement you can go to. Prius hybrid repair call 4109197618 there in annapolis md
     
    #12 Priuslover09, Jan 15, 2020
    Last edited: Jan 15, 2020
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