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EC-922 < COMPONENT DIAGNOSIS > [MR18DE] P1217 ENGINE OVER TEMPERATURE 4. CHECK COOLING FAN LOW SPEED OPERATION Without CONSULT-III 1. Start engine and let it idle. 2. Turn air conditioner switch ON. 3. Turn blower fan switch ON. 4. Make sure that cooling fan operates at low speed. Is the inspection result normal? YES >> GO TO 6. NO >> Check cooling fan speed control circuit. Refer to 5. CHECK COOLING FAN LOW SPEED OPERATION Without CONSULT-III 1. Perfom IPDM E/R auto active test and check cooling fan motor operation. Refer to . 2. Make sure that cooling fan operates at low speed. Is the inspection result normal? YES >> GO TO 6. NO >> Check cooling fan speed control circuit. Refer to 6. CHECK COOLING FAN HIGH SPEED OPERATION. Without CONSULT-III 1. Turn ignition switch OFF. 2. Turn air conditioner switch and blower fan switch OFF. 3. Disconnect engine coolant temperature sensor harness connector. 4. Connect 150 Ω resistor to engine coolant temperature sensor harness connector. 5. Restart engine and make sure that cooling fan operates at higher speed than low speed. Is the inspection result normal? YES >> GO TO 7. NO >> Check cooling fan speed control circuit. Refer to 7. CHECK COOLING SYSTEM FOR LEAK Check cooling system for leak. Refer to . Is leakage detected? YES >> GO TO 9. NO >> GO TO 8. 8. DETECT MALFUNCTIONING PART Check the following for leak. Refer to • Hose ) • Reservoir tank >> Repair or replace. 9. CHECK RESERVOIR TANK CAP Check radiator cap. Refer to CO-38, "Checking Radiator Cap" . Is the inspection result normal? YES >> GO TO 10. NO >> Replace radiator cap. 10. CHECK THERMOSTAT Check thermostat. Refer to ) Is the inspection result normal? YES >> GO TO 11. NO >> Replace thermostat. |