Hi guys, I need some help, I got a 01 prius with 178k, check engine light is on with code P3125, 12v battery is charging 13.9 all the time, vehicle on "D" position drives 3 mph and on "R" drives weaker for 10 ft and stops. Inventor cooling system show a good flow on the reserver lens. HV Battery with engine ruining has 297v, any idea could help me to start fining the problem, thank you in advance.
