DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control [11/2016 - 10/2017]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Read the DTCs.

   Powertrain > Engine and ECT > Trouble Codes 

   Result

   Result	Proceed to
   DTC P0125 is output	A
   DTC P0125 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0125 are output, troubleshoot those DTCs first.

Result:  2

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2016 - 10/2017] 

Result:  1

A 

See step  2

1. Inspect the thermostat (thermostat opening temperature).

   Refer to INSPECTION [12/2013 - ]

   Result

   Proceed to
   OK
   NG

Result:  2

NG 

REPLACE THERMOSTAT. Refer to  REMOVAL [12/2013 - ] 

Result:  1

OK 

See step  3

1. Check for defects in the cooling system that might cause the system to be too cold, such as abnormal cooling fan operation or any modifications.

   HINT: 

   Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.

   Refer to INITIALIZATION [12/2013 - ]

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to  REMOVAL [12/2013 - ] 

Result:  2

NG 

REPAIR OR REPLACE COOLING SYSTEM