DTC P0125: Engine Coolant Temperature Too Low For Closed Loop Fuel Control
- Turn ignition off. Connect scan tool. Turn ignition on. If DTC P0116 or P0117 exist, diagnose and repair those DTCs. Do not diagnose DTC P0125.
- If DTC P0116 and/or P0117 do not exist, and P0125 is only DTC set, check thermostat. If thermostat stays open, replace thermostat. If thermostat does not stay open, replace ECT sensor.