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Home >> Subaru >> 2006 >> Legacy GT spec.B >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Engine Controls - Engine (Diagnostics) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control

DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control

WARNING: This page is about a different car, the 2006 Subaru Outback. However, it is still accessible from the selected car via links, so may be relevant.

DTC DETECTING CONDITION: 

TROUBLE SYMPTOM: 

Engine does not return to idle.

CAUTION: After repair or replacement of faulty parts, perform Clear Memory Mode < Ref. to OPERATION , Clear Memory Mode. > and Inspection Mode < Ref. to PROCEDURE , Inspection Mode. >.
DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL - DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK FOR ANY OTHER DTC ON DISPLAY.  Is any other DTC displayed? Inspect the relevant DTC using "List of Diagnostic Trouble Code (DTC)." < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >
NOTE: In this case, it is not necessary to inspect DTC P0125.
Go to step 2. 
2 CHECK TIRE SIZE.  Is the tire size as specified? and the same size as other three wheels? Go to step 3.  Replace the tire.
3 CHECK ENGINE COOLANT. 
Check the following items:
  • Amount of engine coolant
  • Engine coolant freeze
  • Contamination of engine coolant
Is the engine coolant normal? Go to step 4.  Fill or replace the engine coolant. < Ref. to INSPECTION , Engine Coolant. >
4 CHECK THERMOSTAT.  Does the thermostat remain opened? Replace the thermostat. < Ref. to THERMOSTAT . > Replace the engine coolant temperature sensor. < Ref. to ENGINE COOLANT TEMPERATURE SENSOR . >