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Red Triangle of Death

Discussion in 'Generation 1 Prius Discussion' started by IAN HIGGINS, Dec 8, 2021.

  1. IAN HIGGINS

    IAN HIGGINS New Member

    Joined:
    Oct 23, 2021
    5
    0
    0
    Location:
    Bahia de Los Angeles, Baja California, Mexico
    Vehicle:
    2002 Prius
    Model:
    Base
    Any information would be much appreciated. I have a 2002 prius with 208000. Still get's good mpg, seems to run great. I replaced the HV battery with a few months ago.

    About 2-3 times a month the red triangle will come on. I pull over, turn the car off and on and it drives fine again for a while. I've scanned the OBDII and it says no codes in the ECU.

    Any tips?
     
    #1 IAN HIGGINS, Dec 8, 2021
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,781
    48,985
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    are you scanning with tech stream?
     
    #2 bisco, Dec 8, 2021
  3. Josey

    Josey Active Member

    Joined:
    Jun 10, 2019
    287
    108
    0
    Location:
    Virginia
    Vehicle:
    2003 Prius
    Model:
    One
    A typical OBDII scanner will only pull codes associated with the check engine light (generic codes). You'll need to get access to a more powerful scanner. Techstream is the official Toyota stuff, and if you search this site you'll find ways of getting it cheap. But there are also other scanners that will pull the Toyota & hybrid system codes.

    Until you have those codes, there's no way to know where to start.
     
    #3 Josey, Dec 8, 2021
  4. Dirty Jim

    Dirty Jim New Member

    Joined:
    Dec 3, 2021
    2
    1
    0
    Location:
    Nashville
    Vehicle:
    2004 Prius
    Model:
    N/A
    Here we go again...

    Load test your 12v battery then report back.
     
    #4 Dirty Jim, Dec 8, 2021
  5. IAN HIGGINS

    IAN HIGGINS New Member

    Joined:
    Oct 23, 2021
    5
    0
    0
    Location:
    Bahia de Los Angeles, Baja California, Mexico
    Vehicle:
    2002 Prius
    Model:
    Base
    I'm scanning with the dr. Prius app. and a Bafx obdii scanner.
     
    #5 IAN HIGGINS, Dec 8, 2021
  6. IAN HIGGINS

    IAN HIGGINS New Member

    Joined:
    Oct 23, 2021
    5
    0
    0
    Location:
    Bahia de Los Angeles, Baja California, Mexico
    Vehicle:
    2002 Prius
    Model:
    Base
    Will do. Thanks for the info.
     
    #6 IAN HIGGINS, Dec 8, 2021
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