Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK COOLING FAN (CRANKSHAFT DRIVEN) OPERATION Start engine and let it idle. Make sure that cooling fan (crankshaft driven) operates normally. OK or NG	GO TO 2.	GO TO 3.
2	CHECK COOLING FAN OPERATION With SDT Start engine and let it idle. Select "COOLING FAN" in "Active test" mode with SDT. Make sure that cooling fan operates at each speed (LOW/HI). OK or NG	GO TO 4.	Check cooling fan control circuit. (Go to PROCEDURE.)
3	CHECK COOLING FAN OPERATION Without SDT Perform IPDM E/R auto active test and check cooling fan motors operation, refer to [DIAGNOSIS SYSTEM (IPDM E/R): DIAGNOSIS DESCRIPTION ] Make sure that cooling fan operates at each speed (Low/High). OK or NG	GO TO 4.	Check cooling fan control circuit. (Go to PROCEDURE.)
4	CHECK COOLING SYSTEM FOR LEAK Refer to [ENGINE COOLANT: SYSTEM INSPECTION ] OK or NG	GO TO 5.	Check the following for leak. Refer to [ENGINE COOLANT: SYSTEM INSPECTION ]. Hose Radiator Radiator cap Reservoir tank Water pump
5	CHECK RESERVOIR TANK CAP Refer to [ENGINE COOLANT: SYSTEM INSPECTION ] OK or NG	GO TO 6.	Replace reservoir tank cap.
6	CHECK COMPONENT PARTS Check the following Thermostat. Refer to [WATER INLET AND THERMOSTAT ASSEMBLY: REMOVAL AND INSTALLATION ] Engine coolant temperature sensor. Refer to [P0117, P0118 ECT SENSOR ]. OK or NG	GO TO 7.	Replace malfunctioning component.
7	CHECK MAIN 12 CAUSES If the cause cannot be isolated, go to [P1217 ENGINE OVER TEMPERATURE ].	INSPECTION END