triangle but no codes

Discussion in 'Generation 1 Prius Discussion' started by ronlewis, Aug 12, 2026 at 1:25 AM.

  1. ronlewis

    ronlewis Active Member

    Joined:
    Dec 5, 2016
    1,061
    205
    1
    Location:
    texas
    Vehicle:
    2001 Prius
    Model:
    One
    Haven't had this before. Car started up fine and a minute later threw the triangle. No other lights, not the big screen, just the triangle. I'm not pulling any codes with TorquePro. IIRC, being low/high on oil can trigger a no-code triangle, but the oil level is exactly right. Anyone know anything else that sets the triangle but doesn't throw a code? The inverter pump is working fine. Car runs fine, although I only drove it a couple of blocks and came back home.

    TP clears the triangle, but it sets again, whether it's driving/in gear or just idling. Can't recall for sure, but I think it sets with just the key on, without starting it.

    Any other way to read the codes? I don't have TS.