Diagnosis Procedure

1. CHECK ENGINE COOLANT TEMPERATURE SENSOR

   Refer to "COMPONENT INSPECTION ".

   OK or NG 

   OK: GO TO 2.

   NG: Replace engine coolant temperature sensor. Refer to "COMPONENT ".

2. CHECK THERMOSTAT

Refer to "REMOVAL AND INSTALLATION ".

OK or NG 

OK: INSPECTION END 

NG: Replace thermostat. Refer to "REMOVAL AND INSTALLATION ".