2006 with 185000m red triangle, yellow brake light, check engine light and MFD red car top left

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Dnc95, Jul 20, 2020.

  1. Dnc95

    Dnc95 Junior Member

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    Driving home from grocery shopping and the red triangle, check engine light and yellow brake light on the dash all pop on at the same time also the red car icon in the mfd top left corner came on as well. Drove home in kind of a limp mode and the ac stopped working a little while later (maybe like 10 min) so I turned off the radio and made it home, as I got home my brakes became very hard to press but managed to stop and get home. Thought my 12v finally went out so ordered a new optima yellow top, ran my generic code reader and got zero codes but when I erase the codes the scanner says evap code successfully erased. Dash lights go away new battery goes in and drove around amazing for 30 min then the lights all came back on so I came home slowly and started looking online. Any help would be appreciated. Thanks
     
  2. bshef

    bshef Active Member

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    Codes???
     
  3. Dnc95

    Dnc95 Junior Member

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    No visible codes on a generic code reader from amazon, when I erase codes it does give me a “successfully cleared evaporate code” and the triangle/yellow brake/ and check engine all turn off
     
  4. bisco

    bisco cookie crumbler

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    tech stream
     
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  5. JC91006

    JC91006 Senior Member

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    1. To diagnose the problems on the Prius, you would need a pretty decent code reader. A generic one from Amazon won't cut it.

    2. Do you hear the rear fan blowing really fast? It's the fan in the rear passenger side door.

    If you do not hear this fan blowing fast, then it's probably not your hv battery that has failed.

    3. Another common failure on this car would be the inverter coolant pump. When that fails, the car overheats and it starts to shut down slowly. The air conditioner is one of the first items to shut down when this happens.
     
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  6. Dnc95

    Dnc95 Junior Member

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    Thanks for the replies. I recently had the battery pack swapped out about a year ago, still has warranty so I don’t think it’s that and the fan for the hybrid battery was not on (also changed with battery pack)
    I don’t have an old windows 7 to run tech stream. Any reputable shops in the Palm Springs area that somebody might know?
     
  7. Dnc95

    Dnc95 Junior Member

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    The AC did stop working and at the end the brakes did too, that’s why I thought it was an abs thing not the coolant thing but I’ll definitely look into the inverter coolant pump. I have fluid in the tank but never checked if it’s working! I’ll check it out when I get off work in the morning! Thank you
     
  8. Dnc95

    Dnc95 Junior Member

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    So I turned on the car, popped the hood and opened the coolant reservoir cap and the coolant was still, no coolant moving, do I need to let it warm up or is the pump always running when the car is running. Thanks again for the help.
     
  9. JC91006

    JC91006 Senior Member

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    inverter coolant pump is always running when the car is READY. No need to warm up
     
  10. Dnc95

    Dnc95 Junior Member

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    Thank you! Ordering one right now and I’ll give you guys/gals an update on how it goes
     
  11. JC91006

    JC91006 Senior Member

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    You should also check the codes to make sure there isn't more than 1 problem.
     
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  12. Dnc95

    Dnc95 Junior Member

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    I’m gonna try and put windows 7 on my computer and install the Toyota software for codes, my generic code reader doesn’t show any faults
     
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  13. Dnc95

    Dnc95 Junior Member

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    Hello folks, I ended up picking up an oem pump from the dealer and installed no problem this morning and I’m goin to take a long drive and see if any codes or triangle of death come back and give an update.
    Thank You again for all the help, I’m glad there’s a Prius chat!
     
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  14. Dnc95

    Dnc95 Junior Member

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    Thank you to everyone for the help! She’s been back on the road for a full work day and running better then ever!
     
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