P0125

DTC P0125 INSUFFICIENT COOLANT TEMP FOR CLOSED LOOP FUEL CONTROL





WIRING DIAGRAM






DETECTING CONDITION






DTC CONFIRMATION PROCEDURE

WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and a tester, on a level road.





TROUBLESHOOTING

ENGINE COOLANT TEMPERATURE SENSOR (ECT SENSOR)

Removal
1) Disconnect negative cable from battery.
2) Drain cooling system.
3) Disconnect coupler from ECT sensor
4) Remove ECT sensor from intake manifold.





Inspection
Immerse temperature sensing part of ECT sensor in water and measure resistance between sensor terminals while heating water gradually.

If measured resistance doesnt show such characteristic as shown, replace ECT sensor.





Installation
Reverse removal procedure noting the following.
- Clean mating surfaces of sensor and intake manifold.
- Use new gasket.
Tighten ECT sensor to specified torque.

Tightening Torque
(a): 15 N.m (1.5 kg-m, 11.0 lb-ft)

- Connect coupler to sensor securely.
- Refill cooling system.