M/T

DTC P0125 - INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

TROUBLE SYMPTOM:
- Engine would not return to idling.

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How to Clear Diagnostic Trouble Codes.

Wiring Diagram:

WIRING DIAGRAM

10M1:CHECK ANY OTHER DTC ON DISPLAY

CHECK: Does the Subaru Select Monitor or OBD-II general scan tool indicate DTC P0116 or P0117?

YES: Inspect DTC P0116 or P0117 using "10. Diagnostics Chart with Trouble Code for MT Vehicles".

NOTE: In this case, it is not necessary to inspect DTC P0125.

NO: Go to step 10M2.

10M2: CHECK THERMOSTAT.

CHECK: Does thermostat remain opened?

YES: Replace thermostat.

NO: Replace engine coolant temperature sensor.