ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL

DTC DETECTING CONDITION:

Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM:

Engine does not return to idle.

CAUTION:

After repairing or replacing the defective part, perform the Clear Memory Mode and Inspection Mode .

STEPCHECKYESNO

1.CHECK TIRE SIZE.

Is the tire size as specified? and the same size as other three wheels?

Replace the tire.

2.CHECK ENGINE COOLANT.

Check the following items:

• Amount of engine coolant

• Engine coolant freeze

• Contamination of engine coolant

Is the engine coolant normal?

Fill or replace the engine coolant.

3.CHECK THERMOSTAT.

Does the thermostat remain opened?

Replace the thermostat.

Replace the engine coolant temperature sensor.