1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Prius won't start

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by robl45, Aug 23, 2018.

  1. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    Hello,

    My 2004 prius died on me yesterday while driving home. I posted in another thread, but I think its getting offtopic on that thread.

    I was stopped in traffic and all of a sudden the Red triangle comes on and I see problem on the MFD. It went into neutral at that point. I then tried to turn it off and back on. From that point on it would just blink all the gear indicators with square boxes around them and blink the gas gauge. From reading it appeared to be a dead 12v battery. I have charged up the 12 volt battery and attempted to start it. All I seem to get at this point is the start button blinks amber and the dash lights radio lights come on for a second and turn off. There is also a loud buzzing noise. The car will go into accessory mode just fine.

    Just tried again. When trying to start/ready mode the car, all the dash lights spedometer /gear lights etc will light and then everything turns off about a 1/2 second later and just the square boxes around the gear indictors flash for a second and then they disappear. It is just the outline of the boxes around the gear indicator flashing. You cannot see the actual gears.
     
    #1 robl45, Aug 23, 2018
    Last edited: Aug 23, 2018
  2. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,226
    5,910
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    I would verify the 12v battery again. Actually, I would probably get it tested at an AutoZone or someplace similar so they can load test it. I recently saw very similar symptoms when my 12v was super weak. It was actually down around 9? or 7? volts when the squares around the gear lights flashed a couple times and then went dark.
     
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,883
    49,478
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    how old is the battery? you need to test it, charging may not be working.

    have you checked the inverter fluid for movement?
     
  4. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    I have had the car for about 2 years. How would the inverter have any movement if hte car won't turn on? Car will go to accessory, it will not turn on, whether I put my foot on brake or take my foot off brake and hit the start button again, the lights turn on quickly, then turn off and the flashing boxes will be there for a second where the gears would be.

    Everything I have read has said battery, but honestly the battery is at least 12.4 volts at this point and probably higher. It was hooked up to a 9 amp charger and yet nothing is different from last night before I charged it to now. I certainly can charge the battery fully tonight although I'm debating if that will help at this point as the tow truck driver said who is familiar with these cars, the battery seems plenty strong as none of the lights are dimming.

    When doing the battery test in acc mode, the battery I believe was reading like 12.4 or 12.6 dipping to 11.9 with the lights on. Surely that should be enough to start the vehicle?

    It concerns me that I was actively driving the car when it all of a sudden said problem. Granted I was stopped, but in most of these cases it seems to be that the person turned off the car and had a problem getting it started again.
     
  5. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    Called two places that get good reviews as mechanics, neither place will touch it, said it could be the hybrid system and they can't do anything with that. I might as well call a donation center if I"m going to take it to the dealer as that's pretty much a minimum 1000 dollars and the car is worth maybe 2000.
     
  6. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,883
    49,478
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    will it go to ig-on? (foot off brake, press start button twice)
     
  7. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    No, does same thing as foot on brake. lights all light up, then shut off after maybe 1/2 second. Then the squares around the gear letters blink for a second. and start button blinks amber.

    I'm gonna try to get my friends jumper cables later and see if that works, I'm 99% positive though that the battery has enough juice to start it. I'm not sure if maybe there is a fuse blown? What would cause it not to even leave the dash lights on?
     
  8. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,226
    5,910
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    It was hooked up to a 9 amp charger and yet nothing is different from last night before I charged it to now.

    Out of curiosity, did your battery have writing on top that specifically says to not exceed 4.2 amps/10 hours for charging? If it's an OEM / AGM battery, I'd be guessing the answer is yes.
     
  9. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    no idea, but it probably charged on that for 20 minutes or less before dropping down. And a car battery can do way more than that. At any rate, from looking and looking it appears that I probably blew AM2 fuse and likely the inverter pump is gone. The good thing is it doesn't look like a ridiculous job to change.
     
  10. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,226
    5,910
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    Oh, my mistake. I'm glad to see you have all the answers you need. I wish you the best.
     
    Raytheeagle and bisco like this.
  11. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    So got home, checked AM2 fuse and its blown. Took off the connector from the inverter coolant pump and put in spare fuse and car fired right up. Does that guarantee the pump is dead? Are there any other spare fuses in the car to test with besides the one spare I just used from the front fusebox? Drove it around block a couple of times and started and stopped it a few times and all the warnings went away.
     
  12. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,883
    49,478
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    any swirling in the reservoir now?
     
  13. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    I don't know, I can't plug it in as I don't have a spare 15amp fuse. I mean I guess I could, I'll just have to get a new fuse.
     
  14. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,652
    3,865
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    You can pretty much be certain you need a new inverter coolant pump.

    Don’t drive your car more than you absolutely need to until you replace the ICP. Stay on surface road and stay under 45 mph.
     
  15. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    I just tried, fuse blew as soon as I started the car with the inverter plugged in. Didn't even get to ready
     
  16. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    108,883
    49,478
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i think you are on to something.
     
  17. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    Ordered new pump. I'm cheap, but since the difference between Genuine and fake was like 15 bucks I got the genuine one. Now I just need a fuse, some coolant and hopefully I can borrow and extension.
     
    bisco likes this.
  18. padroo

    padroo Senior Member

    Joined:
    Jan 11, 2008
    2,763
    2,250
    13
    Location:
    Chesterton, Indiana Another third world country.
    Vehicle:
    2016 Prius
    Model:
    Four
    Sounds like you need to invest in some basic tools finances permitting. Hope it goes well for you.
     
  19. robl45

    robl45 Member

    Joined:
    Oct 26, 2016
    137
    15
    0
    Location:
    33076
    Vehicle:
    2004 Prius
    Model:
    N/A
    Got someone to loan me one. I've needed one this size probably 3 times in over 20 years so not worth the investment