2004 Scion xB Q&A

2004 Scion xB Question: where should I start with a p0117 code i was thinking with the thermostat.

It started with the battery light coming on then the red over heat light came on. when i opened up the hood the water resuvouer cap had pop open i added more coolant and closed it but still was over heating. -
Answer 1
START WITH IS THE CAR OVERHEATING, THEN CK COOLANT TEMP SENSOR WIRING AND SENSOR. ITS TELLING YOU THERE IS A PROBLEM WITH THE CIRCUIT NOT NECESSARYILY THE SENSOR -