System Inspection

Engine Control
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control - System Inspection

System Inspection

Cooling System Inspection
1. Check cooling system coolant level and fill if low.
2. Check for a proper cooling system operation. Especially check that cooling and condenser fan working normally.
3. Remove the thermostat and check the following items:
A. Stuck or damaged
B. Verify the temperature at which the valve begins to open.
Valve opening temperature : 80 - 84°C(176 - 183.2°F)
Valve opening temperature : 95°C(203°F)
4. Is a problem found?
YES
> Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
> Go to next step as below.