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Help! My 2007 Prius will not go to READY mode!

Discussion in 'Gen 2 Prius Technical Discussion' started by leemcgee, Jun 29, 2016.

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  1. JC91006

    JC91006 Senior Member

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    did you try sticking the fob in the slot under the start button? Yes?

    If the above doesn't work, then you would need to buy a proper code reader to point you to the right direction. Whatever guess work you did in post #10, really didn't help the car. To properly diagnose the problem, you would need the right tools to diagnose the job.
     
    #21 JC91006, Jul 21, 2016
    Last edited: Jul 21, 2016
  2. leemcgee

    leemcgee Junior Member

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    The problem is resolved, when I pried off the integrated four relay module C which contained the EFI I was checking, I had mistakenly pulled a wire that powered the relays. The prius needs the EFI and AM2 relays to POWER up. This had nothing to do with the 12v battery.
     
    #22 leemcgee, Jul 21, 2016
  3. JC91006

    JC91006 Senior Member

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    As anyone that would go to a forum for help, when the complaint is about "no power", you will normally get people telling you it's your 12v that you should look at first. These are suggestions that are provided for everyone, and it may not apply to everyone's unique situation.

    But of course you would know better than anyone else here, because you are the one that ultimately touched that car and know that car best. Now that your car has actually started, you can give yourself a nice pat on the back for fixing the thing you messed up and begin to diagnose the REAL problem in your car. Which has not been addressed
     
    #23 JC91006, Jul 21, 2016
    Last edited: Jul 21, 2016
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  4. leemcgee

    leemcgee Junior Member

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    I could not agree more. That car probably needs to be recycled, the old Gen 2 Prius has over 400,000 miles on it! (still has the original traction batteries). Cheers Lee
     
    #24 leemcgee, Jul 22, 2016
  5. leemcgee

    leemcgee Junior Member

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    AGAIN! After over a month of driving the Prius, ready light every time, after using it for a 225 mile trip today, brought it home, I reset the DTC codes with my OBDII scanner (autel maxiscan) to turn off the check engine light (it had catalytic converter P0430 and P1121 a new one which I understand has to do with service bulletin and something called a coolant control value "stuck". Did, this hit the power button and guess what! No READY mode. Four lights, transmission will not go into reverse or drive.

    Last time this was fixed by charging the12v battery enough to get a reasonable voltage, then reset the battery by unplugging ground in back of car. Should this work after a good charge this time? I noticed from my charger that the battery seemed low.

    By the way, I resolved the catalytic converter problem by scraping off a thin film of carbon (was either oil or too much gas), this got me down to reasonably good honeycomb, car has been running now with good gas mileage 48 mpg, not bad for 400,000 miles.

    So again my question, do we think this might work after a good 12v battery charge? Thanks all,

    Lee
     
    #25 leemcgee, Sep 11, 2016
  6. Bobdoleis96

    Bobdoleis96 Junior Member

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    so, you found no meltage on the catalytic converter? How did you access the honeycomb structure of it for cleaning?
     
    #26 Bobdoleis96, Dec 15, 2018
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  7. edthefox5

    edthefox5 Senior Member

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    Hybrid battery throwing ground fault code. Lots of dash lights turtle icon on upper left mfd.

    The obd code reader you bought does not have techstream software so will not read hybrid codes.
     
    #27 edthefox5, Dec 16, 2018
  8. Skibob

    Skibob Senior Member

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    Guy must be doing ok or he sold the car. His last post in this thread was over 2 years ago.
     
    #28 Skibob, Dec 16, 2018
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  9. edthefox5

    edthefox5 Senior Member

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    Lol good one didn’t even notice how old....
     
    #29 edthefox5, Dec 17, 2018
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