Red Triangle, Check Engine, and (!) pulled Tech Stream codes

Discussion in 'Gen 2 Prius Technical Discussion' started by Gentoo, Nov 14, 2020.

  1. Gentoo

    Gentoo New Member

    Joined:
    Nov 9, 2020
    5
    1
    0
    Location:
    Westchester NY
    Vehicle:
    2007 Prius
    Model:
    Two
    Difficulties accelerating on highway, heard a sound on drivers side of the car, after sound check engine, Red Triangle and TPM light came on hybrid battery was at one bar and draining not charging, then speedometer turned off, lost all acceleration at stop light stalled...


    Restarted drove home pulled codes from tech stream codes were p0a0d
    p0a0f
    p3190
    b2795
    b1271.......

    Cleared codes Added Techtron Concentrated to gas tank at 1/2 tank. Cleaned MAF, Clean Throttle Body... Hit it hard on the highway to one exit about 1 to 2 miles accelerated fine up to 70 drove regularly for another 10 minutes scanned with Tech stream to check for pending.. Any ideas
     
  2. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    4,122
    3,847
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Which codes (DTCs) did you discover when you "scanned with Tech stream to check for pending" ?

    Here is the workup for DTC P0A0F with INF 204, 205, 533 and 534)

    https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Prius%20Service%20Manuals%202004/%E4%BF%AE%E7%90%86%E6%89%8B%E5%86%8C/04pruisr/05/21bpm/0a0f204.pdf
     
    Raytheeagle likes this.
  3. Gentoo

    Gentoo New Member

    Joined:
    Nov 9, 2020
    5
    1
    0
    Location:
    Westchester NY
    Vehicle:
    2007 Prius
    Model:
    Two
    These are the codes I found, I did not notice a pending just active. What does the snowflake icon mean in techstream?

    p0a0d
    p0a0f
    p3190
    b2795
    b1271

    Thank you for the workup
     
    #3 Gentoo, Nov 15, 2020
    Last edited by a moderator: Nov 16, 2020
  4. mr_guy_mann

    mr_guy_mann Active Member

    Joined:
    Sep 3, 2020
    981
    414
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    The snowflake is the icon for "freeze frame" data. That is a snapshot of operating conditions when the code set. It might also contain an "inf" code- or information subcode that can give a more detailed description of the fault.

    Posted via the PriusChat mobile app.
     
    Gentoo likes this.
  5. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    4,122
    3,847
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Gentoo likes this.
  6. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    4,353
    4,665
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    It's interesting that you got a P0A0D while sitting in the driver seat. That means the car thought a HV Safety Interlock triggered. That should have a subcode 351 if it happened while the car was running, a 350 subcode if the car was stopped.

    The 2 safety interlocks are the safety switch on the HV battery, and a shorting plug inside the inverter that connects two contacts when the cover is in place. The other option is there was some electrical transient in that circuit that made the car think that happened.
     
    Gentoo likes this.
  7. Gentoo

    Gentoo New Member

    Joined:
    Nov 9, 2020
    5
    1
    0
    Location:
    Westchester NY
    Vehicle:
    2007 Prius
    Model:
    Two
    Funny this is an issue I drove about 2500 miles since I cleaned the Hybrid fan, the Orange tab was not making the contact properly a few months ago I had to fiddle with it, could that have just been a stored code?
     
Loading...