Component Inspection

Check Engine Coolant Level and ECT Sensor 

1. Check engine coolant level.
2. If engine coolant level is improper, fill up the coolant and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
3. If engine coolant level is proper, remove and check ECT sensor.
4. Measure resistance between terminals 1 and 3 of the ECT sensor harness connector B-15.
   1. Specification:
      TEMPERATURE RESISTANCE REFERENCE CHART
      
      

      Temperature °C (°F)	-30	20	0	20	40	60	80	100	110
      Resistance (kΩ)	26.74	15.48	5.79	2.45	1.148	0.587	0.322	0.188	0.147
      Voltage (V)	4.39	4.17	3.48	2.56	1.68	1.04	0.63	0.39	0.31

      (Pull up resistance is Approx. 2.2 kΩ and above specification's error range is 2~3%.)

      Fig 1: Measuring Resistance Between Terminals 1 And 3 Of ECT Sensor Harness Connector B-15

      
5. Is ECT sensor normal?

   YES

   1. Go to "Check Thermostat" procedure.

   NO

   1. Test with new ECT sensor and check for proper operation. If problem is corrected, replace old ECT sensor.
   2. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Check Thermostat 

1. IG KEY: OFF, Engine: OFF
2. Remove thermostat.
3. Check that thermostat was stuck or damaged.
4. Check that thermostat is operated normally.
   Fig 2: Checking Thermostat (At Cold And Hot State)

   
   1. Specification:
      THERMOSTAT SPECIFICATIONS CHART
      
      

      Thermostat	Normal Parameter
      Valve Opening Temp.	80~84°C (176~183.2°F)
      Full Opening Temp.	95°C (203°F)

5. Is thermostat normal?

   YES

   1. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO

   1. Replace thermostat and go to "VERIFICATION OF VEHICLE REPAIR " procedure.