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COOLING FAN EC-481 < COMPONENT DIAGNOSIS > [VQ37VHR] C D E F G H I J K L M A EC N P O COOLING FAN Description INFOID:0000000001734305 COOLING FAN CONTROL MODULE Cooling fan control module receives ON/OFF pulse duty signal from IPDM E/R. Corresponding to this ON/OFF COOLING FAN MOTOR Cooling fan motor receives cooling fan motor operating voltage from cooling fan control module. The revolu- Component Function Check INFOID:0000000001734306 1. CHECK COOLING FAN FUNCTION With CONSULT-III 1. Turn ignition switch ON. 2. Perform “FAN DUTY CONTROL” in “ACTIVE TEST” mode with CONSULT-III. 3. Make sure that cooling fan speed varies according to the percent. Without CONSULT-III 1. Perform IPDM E/R auto active test and check cooling fan motors operation, refer to . 2. Make sure that cooling fan operates. Is the inspection result normal? YES >> INSPECTION END NO >> Go to Diagnosis Procedure INFOID:0000000001734307 1. CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT-I 1. Turn ignition switch OFF. 2. Disconnect cooling fan control module harness connector E37. 3. Turn ignition switch ON. 4. Check the voltage between cooling fan control module harness connector and ground. Is the inspection result normal? YES >> GO TO 2. NO >> GO TO 7. 2. CHECK COOLING FAN CONTROL MODULE GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Check the continuity between cooling fan control module harness connector and ground. 3. Also check harness for short to power. Is the inspection result normal? YES >> GO TO 3. NO >> Repair open circuit or short to power in harness or connectors. Cooling fan control module Ground Voltage Connector Terminal E37 3 Ground Battery voltage Cooling fan control module Ground Continuity Connector Terminal E37 1 Ground Existed |