No Codes, Red Triangle, Brake, Check Engine & Car Outline in MFD

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

  1. Buckthorn

    Buckthorn New Member

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    2006 Prius, 260,500 miles, original HV battery...

    Got red triangle, brake warning, check engine, plus car outline with exclamation mark in upper-left corner of the MFD. Found no error codes using Nexpeak NX501 reader (but in I/M Readiness got X's for cat, evap, and O2S). Engine starts immediately on power-up. HV battery not discharged. Several weeks ago, instrument cluster went dark during one trip. Hasn't been run regularly since the start of the lock-down. Turbulence in the inverter coolant reservoir. Engine air filter needs to be replaced.

    Is this as bad as it looks?
     
  2. SFO

    SFO Senior Member

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    Welcome to PriusChat!!

    Sounds like the OBD2 reader isn't up to the task, can you find a toyota hybrid compatible scanner?
     
  3. George W

    George W Active Member

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    Engine oil level?
     
  4. Buckthorn

    Buckthorn New Member

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    Engine oil OK.
     
  5. Buckthorn

    Buckthorn New Member

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    Any suggestions for a scanner that'll read all the Prius' ECUs?
     
  6. SFO

    SFO Senior Member

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    Many here prefer a mini-vci cable, and a copy of Techstream (same software used by the dealership).

    You could also try a bluetooth/wifi OBD2 adapter with an App like Dr. Prius (aka Dr Hybrid), or another App like Hybrid Assistant.

    Here is a sub forum if you are interested in that knowledge : Prius OBDII Third-Party Apps | PriusChat

    Finding the right adapter : Hybrid battery diagnostic and repair tool for Toyota and Lexus
     
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  7. George W

    George W Active Member

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    quick note: if you want to run techstream, you'll need an obsolete laptop running either Windows XP or Windows 7.
     
  8. SFO

    SFO Senior Member

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    Yes, and it works on devices that are capable of running windows (including tablets) or an emulator like Oracle VM VirtualBox

    Not only for winblows XP or 7, as the microsloth 8 and 10 variants are also possible, be it 32 or 64 bit flavored.

    Would be interesting to see if it could be run within WINE : WineHQ - Run Windows applications on Linux, BSD, Solaris and macOS
     
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  9. George W

    George W Active Member

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    That's good to know. I had not heard any success stories with Windows 8 or 10
     
  10. Virvis

    Virvis New Member

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  11. Virvis

    Virvis New Member

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    Wondering if you ever resolved? I have the same issue on an 2007 that sat for 3 weeks. Replaced the 12v (it was weak), car started and drove fine but warning lights all came back on after driving about 2 miles.
     
  12. Buckthorn

    Buckthorn New Member

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    Virvis: Your experience sounds very similar to mine. Any updates?

    Had our Prius scanned by a dealership on 4/24. They reported P3000 and P0A80 codes and found that cell B07 was low. In English, the battery is dying. Is one weak cell enough to cause the multiple warning lights?. BTW, the instrument cluster went dark for one start cycle a few weeks before.

    I'm attaching images of the scanner report. With 260k+ miles, I'm reluctant to gamble with a big investment. The dealership quoted $2,912 to replace the battery.

    Can anyone suggest an aftermarket service that tests and replaces weak cells?

    Prius_06_Battery_DX-20200424-0001.jpg Prius_06_Battery_DX-20200424-0002.jpg Prius_06_Battery_DX-20200424-0003.jpg Prius_06_Battery_DX-20200424-0004.jpg Prius_06_Battery_DX-20200424-0005.jpg
     
  13. SFO

    SFO Senior Member

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    @ericbecky will set you straight, be it advice, a new OEM install, a low mileage recovery, or a single module swap into an existing pack.

    Call 608-729-4082 during the week, daytime hours. Or send a private message at : https://priuschat.com/conversations/add?to=ericbecky
     
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  14. Sheetal G

    Sheetal G New Member

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    >>>>
    My 2007 Prius is showing the exact problem you described earlier "Got red triangle, brake warning, check engine, plus car outline with exclamation mark in upper-left corner of the MFD.". When this happened last week, there were only three "Red triangle, check engine, exclamation mark on car icon in MFD", I was able to reset it using by disconnecting the HV battery plug (YouTube), and also unplugging 12V battery (from Youtube). We were able to drive short distances for almost a week, but then yesterday all the icons you mentioned happened after a 30 mile freeway driving. I am wondering if the fix is as easy as replacing the "Inverter Cooling Pump" (never done this myself). I am worried about driving now, as the earlier unplugging HV battery and 12V battery does not seem to clear this display. I can still drive the vehicle.
    How did you resolve this issue? Thanks.
     
  15. Buckthorn

    Buckthorn New Member

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    After seeing that one of the battery modules was bad via an OBD readout from the dealership and pricing the cost to replace the battery (or just the module), I decided that the car had served us well and I got rid of it. Good luck with your Prius.
     
  16. Sheetal G

    Sheetal G New Member

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    Thanks for your reply.
     
  17. Elle Biesemeyer

    Elle Biesemeyer New Member

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    Just had this exact problem—all of a sudden all these same Symbols/lights went on and then two hours later the hybrid battery was dead. Should have noticed earlier by the way the battery would drain and recharge rapidly. Was on my way to the dealer when car stopped accelerating and wouldn’t charge at all.
     
  18. Bobbytwotaps

    Bobbytwotaps Junior Member

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    Just replace the cell or module yourself. So many YouTube videos DIY.
     
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