Used transmission installed engine will not turn over

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by dfairch69, Jan 21, 2023.

  1. dfairch69

    dfairch69 Junior Member

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    My son has a 2008 Toyota Prius and he had his mechanic install a used transmission, the other one was grinding. The mechanic has everything installed, dash lights, come on, clicking noises, orange plug is locked in, hit button twice, just will not start. Any ideas? It ran before just transmission was bad. Thanks everyone.
     
    #1 dfairch69, Jan 21, 2023
    Tombukt2 likes this.
  2. Tombukt2

    Tombukt2 Senior Member

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    Does the car ready does the green ready light come on can you shift into drive? The clicking is what you want that means the relays at the battery in the back are switching on and activating the high voltage circuit is the high voltage battery on the dash or MFD showing near empty?
     
    #2 Tombukt2, Jan 21, 2023
  3. SFO

    SFO Senior Member

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    Dash warning lights generally mean OBD2 codes being stored in the ECUs, are there OBD2 codes that you can post in this thread?

    How many miles are on the vehicle?
     
    #3 SFO, Jan 21, 2023
  4. fotomoto

    fotomoto Senior Member

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    As in total silence (aside from the clicks, dings, etc) or the ICE turns over but does not run/drive? HV battery original?
     
    #4 fotomoto, Jan 21, 2023
  5. Tombukt2

    Tombukt2 Senior Member

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    The ice turns over are we sure about that?
     
    #5 Tombukt2, Jan 21, 2023
  6. Tombukt2

    Tombukt2 Senior Member

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    Does not run or drive means no ready The green text r e a d y is not displayed Is this correct?
     
    #6 Tombukt2, Jan 21, 2023
  7. bisco

    bisco cookie crumbler

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    sometimes a wire gets pinched between the tranny and engine
     
    #7 bisco, Jan 21, 2023
  8. JC91006

    JC91006 Senior Member

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    How about the most obvious thing to overlook, the 12v battery good?
     
    #8 JC91006, Jan 21, 2023
  9. dfairch69

    dfairch69 Junior Member

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    Hello everyone and I do appreciate all of the feedback, I need to add more information when posting a question, sorry about that. I just got back from my sons mechanic, it was the orange plug that he has said he had in correctly. I asked him several times and he assured me it was correct that is why I drove an hour to see what was going on. There is one other thing I cannot seem to find the problem while I was there and that is the p0AFA code. low hybrid battery voltage. The prius is running transmission seems to be functioning properly, have not driven but few feet since red triangle is on with this code. There we're no codes tripped prior to transmission install, drove the car in his garage, but now the red triangle with this code pops up. I appreciate everyone here on Prius Chat and thanks for all of your help.
     
    #9 dfairch69, Jan 21, 2023
  10. dfairch69

    dfairch69 Junior Member

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    New 12 volt battery original HV battery
     
    #10 dfairch69, Jan 21, 2023
  11. dfairch69

    dfairch69 Junior Member

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    I am thinking the BECM.
     
    #11 dfairch69, Jan 21, 2023
  12. dfairch69

    dfairch69 Junior Member

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    I used Dr Prius and the HV battery goes from 234 volts down to 168 volts two turn red.
     
    #12 dfairch69, Jan 21, 2023
  13. SFO

    SFO Senior Member

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    #13 SFO, Jan 21, 2023
  14. dfairch69

    dfairch69 Junior Member

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    #14 dfairch69, Jan 21, 2023
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  15. Tombukt2

    Tombukt2 Senior Member

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    When my generation too was bouncing around like that you could see it on the MFD I pulled the battery out and it was pretty dirty luckily all connections like to computers and plugs and that nonsense was all in good shape. But all the bus bars and nuts not so much replace the battery and everything was good until the accumulator and brake went out. But that was an uneventful fix everything is good.
     
    #15 Tombukt2, Jan 21, 2023
  16. dfairch69

    dfairch69 Junior Member

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    Thanks for your help, I will buy some new bus bars and nuts.
     
    #16 dfairch69, Jan 21, 2023
  17. SFO

    SFO Senior Member

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    If the harness is good, then clean up the nuts and bars with citric acid or vinegar and salt. Unlikely if the nuts/bars are the problem.

    A new harness is around 60+ (shop around) : 8216547040 - Wire, frame, no. 2. Battery, electrical - Genuine Toyota Part

    Check the HV battery ECU for corrosion on the socket pins, and if very bad then also check where the socket mounts to the PC board.
     
    #17 SFO, Jan 22, 2023
  18. dfairch69

    dfairch69 Junior Member

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    Going over there in the morning to check the battery out, thank you for your help it is much appreciated.
     
    #18 dfairch69, Jan 22, 2023
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