Transaxle Failure

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by dailyphotofix, Feb 26, 2009.

  1. 'LectroFuel

    'LectroFuel Senior Member

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    Is there a way to preserve the transaxle life other than replacing the fluid?
     
  2. edthefox5

    edthefox5 Senior Member

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    Nope thats your best bet but also take it easy on big mountains with big weight load. That and a low hybrid battery charge will cook the trans.
     
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  3. SFO

    SFO Senior Member

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    How does a low HV battery cook a trans?

    My HV battery state of charge (SOC) is often quite low while climbing larger hills or mountains (this vehicle already has a new trans, and isn't looking for another)
     
  4. edthefox5

    edthefox5 Senior Member

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    Because the battery/engine tends to not be able to provide sufficient voltage & current under such extreme loads the trans motors are demanding especially at low soc on a big hill climb at speed.
    High power because you are demanding it via the gas pedal. Under load lower the voltage the higher the current. The motor winding's take the brunt.

    Many posts here over the years about people on the side of the road with an overheated Inverter attempting to drive up a big mountain with low soc and maintain speed and power all the way up. Battery soc getting very low, power output of engine at max and engine screaming, speed falling off so you floor it to maintain speed.

    The perfect storm is a heavily loaded car, steep mountain, and very hot day, and trying to go fast. Seen that many times here. They always report engine was screaming and burning smell. Did they pull over...nope. The best way to blow out motor winding's. Run an electric motor so hard it almost stalls and the current draw goes off the chart. These are the same dopes who have never changed there Inverter coolant or there trans fluid.

    Next time you go up a huge mountain with low soc maintain the speed and do a before and after inverter coolant check. Use an IR thermometer. Do it on a hot day. You may not even need a IR just open the hood and smell. You'll know its in trouble when you hear the engine screaming.

    In all cases if the engine in a g2 is screaming under load that means there is very low hybrid battery output or the load has demanded way more current than the hybrid battery can contribute. Hilarity will ensue. Its the Achilles heal of this under powered little car and should be understood.

    If you consistently drive hard enough that the engine is screaming all the time make sure you have good Inverter coolant and good trans fluid because your demanding alot out of the car.

    In the G3 they realized the under power of the G2 and have more powerful and efficient mg's. Better Inverter cooling and a better planetary gear setup eliminating the chain etc. Big difference in power between the G2 and the G3. G3 can handle hills and instantaneous high loads much better.
     
    #224 edthefox5, Dec 30, 2017
    Last edited: Dec 30, 2017
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  5. Dxta

    Dxta Senior Member

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  6. dulichkhampha

    dulichkhampha New Member

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    Thank you for allowing all of us to tag along from the beginning of this process.

    When you post photos, please try to provide a log in which you describe what each photo represents.
     
  7. Nriver0626

    Nriver0626 New Member

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    I have a 2007 prius touring 170k i just learned my transaxle is failed. code PA006, looking at many other chats i originally thought inverter pump. No sounds or noises gave foresight that this would happen. While leaving work Red warning light, VSC as well as red exclamation mark on car displayed. I drove vehicle home turned off did not turn over ready untill next day. i found a transaxle that fits for $235 just struggling to find mechanic to do labor any one have any ideas?
     
  8. edthefox5

    edthefox5 Senior Member

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    You were not the original owner?
     
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  9. dolj

    dolj Senior Member

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    That does not seem to be a valid Gen 2 code. Perhaps you meant P0A60?

    If it is, there are 6 sub-codes associated with that DTC, which would help point to more detail of where the fault may lie:

    288, 289, 290, 292, 294 and 501.
     
    #229 dolj, Apr 3, 2018
    Last edited by a moderator: Apr 5, 2018
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  10. James1964

    James1964 Member

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    Thanks for these excellent call outs.

    Posted via the PriusChat mobile app.
     
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