2007 prius wont start after hybrid battery repair

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by waveposer, May 19, 2020.

Tags:
  1. waveposer

    waveposer New Member

    Joined:
    May 19, 2020
    3
    0
    0
    Location:
    MI
    Vehicle:
    2007 Prius
    Model:
    ----USA----
    It all started with the red triangle and purple battery lights when first starting Prius. I read many post and took out hybrid battery. I found and replaced 1 battery that was reading lower voltage ( 6.6) when all the rest where 7.8. I completed load test on all the batteries with a headlight bulb. Balanced battery overnight, all cells reading 7.65 or 7.66. Installed hybrid back and now I have 214 volts at the battery but car will not start, all lights on including red triangle on. Battery symbol on displays showed around 4 blue bars. Car will shift into N if that means anything. I took side cover off hybrid battery and turned car on. I am not getting any voltage past where the batteries connect to Relays ?. I don't have schematic off any kind. I am very comfortable TS electronic/electrical issue. I have not pulled any codes yet.
     
    #1 waveposer, May 19, 2020
  2. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    16,600
    8,478
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    You probably forgot to lock the orange interlock device on your battery

    upload_2020-5-19_22-15-2.jpeg
     
    #2 JC91006, May 20, 2020
    Raytheeagle and SFO like this.
  3. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,302
    4,243
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Welcome to PriusChat!!

    Can you post some pictures of the HV battery, including the relay/ecu area.
     
    #3 SFO, May 20, 2020
    Raytheeagle likes this.
  4. waveposer

    waveposer New Member

    Joined:
    May 19, 2020
    3
    0
    0
    Location:
    MI
    Vehicle:
    2007 Prius
    Model:
    ----USA----
    Orange jumper in
     
    #4 waveposer, May 20, 2020
  5. waveposer

    waveposer New Member

    Joined:
    May 19, 2020
    3
    0
    0
    Location:
    MI
    Vehicle:
    2007 Prius
    Model:
    ----USA----
    upload_2020-5-20_16-56-14.png
    here is picture
     
    #5 waveposer, May 20, 2020
  6. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    16,600
    8,478
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    Looks like you haven't bolted the battery down to the car chassis. You need at least a couple bolts in
     
    #6 JC91006, May 20, 2020
    Raytheeagle and SFO like this.
  7. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,302
    4,243
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Only one exposed hole there, and I was still playing where's waldo :rolleyes:
     
    #7 SFO, May 20, 2020
  8. Phillip Griffith

    Phillip Griffith Junior Member

    Joined:
    Nov 19, 2020
    43
    1
    1
    Location:
    Columbia Alabama USA
    Vehicle:
    2008 Prius
    Model:
    II
    Having seen your post ;I dont see a final answer. Any update to your problem?
     
    #8 Phillip Griffith, Nov 21, 2020
  9. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
    10,096
    4,827
    0
    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    It will throw a code if that grounding bracket is not installed across the 2 leads where they enter the battery box but maybe he took that apart just to measure dc.
    If it was bolted all up and still not starting it may have a corroded battery ecu plug or a broken or rotted temp sensor.
    Pulling the codes it’s throwing will tell u why it’s unhappy.
     
    #9 edthefox5, Nov 27, 2020
    Phillip Griffith likes this.
  10. Mycaleum

    Mycaleum New Member

    Joined:
    Jul 24, 2020
    5
    2
    0
    Location:
    Utah
    Vehicle:
    2006 Prius
    Model:
    Four
    Happened to me. Push it in and then slide it down. Then cycle the ignition a few attempts and it'll sort it out.
     
    #10 Mycaleum, Nov 27, 2020
  11. Phillip Griffith

    Phillip Griffith Junior Member

    Joined:
    Nov 19, 2020
    43
    1
    1
    Location:
    Columbia Alabama USA
    Vehicle:
    2008 Prius
    Model:
    II
    Previous owner cut the grounding strap , I will make certain that it is reconnected firmly my next attempt at starting the car. My discussion is in Prius Gen 2 "What's wrong with this procedure?"
     
    #11 Phillip Griffith, Nov 28, 2020
    Last edited: Nov 28, 2020
    edthefox5 likes this.
  12. rodri9o

    rodri9o Junior Member

    Joined:
    Sep 7, 2018
    56
    22
    0
    Location:
    NY
    Vehicle:
    2006 Prius
    Model:
    N/A
    ....who does that....
     
    #12 rodri9o, Nov 28, 2020
(You must log in or sign up to post here.)