DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control: Notes
- -
DTC detecting condition:
Detected when two consecutive driving cycles with fault occur.
Trouble symptom:
Engine does not return to idle.
NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Basic Diagnostic Procedure>PROCEDURE .
- CHECK DTC
.
- Turn the ignition switch to ON.
- Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to OPERATION .
Is DTC other than P0125 displayed? (Current code)
Yes : Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to LIST .
No : Go to 2.
- CHECK ENGINE COOLANT
.
Check the following items:
- Amount of engine coolant
- Engine coolant freeze
- Contamination of engine coolant
Is the check result OK?
Yes : Go to 3.
No : Fill or replace the engine coolant. Ref. to COOLING (H4DOTC)>Engine Coolant>REPLACEMENT .
- CHECK THERMOSTAT
.
Check the thermostat. Ref. to COOLING (H4DOTC)>Thermostat>INSPECTION .
Does the thermostat remain opened?
Yes : Replace the thermostat. Ref. to REMOVAL .
No : Go to 4.
- CHECK ENGINE COOLANT TEMPERATURE SENSOR
.
Check the engine coolant temperature sensor. Ref. to INSPECTION .