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Engine wont start, all lights light up on dash. Christmas tree effect

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by onlineorange, Feb 2, 2021.

  1. onlineorange

    onlineorange New Member

    Joined:
    Feb 2, 2021
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    Location:
    boise idaho
    Vehicle:
    2006 Prius
    Model:
    N/A
    Description:

    1. Turn car on.

    2. All the lights come on. No key light.

    3. Car wont go into forward or reverse, and only sometimes in neutral.

    4. Engine wont start


    What I tried:

    1. Jump starting, both with a JNC blue jumper thingy, and with another car.

    2. Tried using the second FOB (key).

    3. Previously, when I had this problem once (which cured itself magically), there were no codes on the ODB-II scanner, so doubt they will be there again.

    4. Battery is a few months old, but since I jump started, figure this isnt the issue.
     
  2. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    10,096
    4,805
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    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    There’s codes alright the dash is lit up. Your obd device is just not capable of pulling hybrid codes.

    5urn on the headlights with car off do you see them are they bright?
    If so stop jump jump starting the car that’s not the problem.
    If no headlights then the 12 volt buss has issue. Get a voltmeter and check for 12 volts at the front jump post under the hood. But sinc3 you have dash lights my best is the hybrid battery has failed. The big expensive one in the trunk. Join the very large club.

    how many miles on the car
    How long have you owned it
    Does it have the original hybrid battery.

    if your not driving it much you most likely killed both the12 volt battery and the hybrid battery.
    Hundreds of posts of bad hybrid battery there all dying on the g2 platform
    Including mine.

    if the lcd screen above the radio has a red car icon in the upper left corner the hybrid battery has failed.

    start reading about that to see what you have to go through next.
     
    SFO likes this.
  3. onlineorange

    onlineorange New Member

    Joined:
    Feb 2, 2021
    8
    0
    0
    Location:
    boise idaho
    Vehicle:
    2006 Prius
    Model:
    N/A
    1. Since I already killed the battery , I could only get headlights with jumpers attached, but with jumpers attached, the lights did work. Do I need to charge and test this again using car battery only (no jump)?

    2. "If no headlights then the 12 volt buss has issue. Get a voltmeter and check for 12 volts at the front jump post under the hood. But sinc3 you have dash lights my best is the hybrid battery has failed." - So you mean I am just checking to see if 12v battery is good? see #1. Anyways more on this in a min.

    3. There is no red warning (battery dead) on the LCD

    So, I want out the next morning, put jumper on again, and all warning lights came back on like usual, but then I pressed the button a second time, and magically it started working. I need to figure out what is wrong with this so I can sell it ASAP, but not as a lemon. I'm just going to go back to a late 90's Civic in the end.

    Next I took it to the car store and bad 12v, so not sure why I couldnt jump start, unless the jump starter was too weak, but that doesnt make a lot of sense. Guess the jumper could have needed a recharge too, but hmmm.....

    Now I got it running, and throwing a bunch more codes (ABS, VCS, yellow circle icon), which im going to reset after new 12v battery put in (Optima this time).

    Also, O'rielys had a tester and ran a hybrid battery check, which showed 16.7V on all banks/cells, so that looks good!


    I owned if for maybe 20k miles , and at around 175k total currently, with original hybrid battery.
     
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,843
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    you need tech stream. either a dealer, or prius savvy shop, unless you are going to diy