Does anyone what this code is for? I replaced the coolant in my car last night and got this code on my OBDII scanner after scanning the car. no check engine light. also I the screen shows B2413 code too which is related swivel headlight motor which I don't have any issues with but i get this code regadless. I'm mostly worried about P2577 code. please help me out. i have an 08 es350 btw.