Radiator Cooling Fan: Testing and Inspection

COOLING FAN

Description

COOLING FAN CONTROL MODULE
Cooling fan control module receives ON/OFF pulse duty signal from IPDM E/R. Corresponding to this ON/OFF pulse duty signal, cooling fan control module sends cooling fan motor operating voltage to cooling fan motor. The revolution speed of cooling fan motor is controlled by duty cycle of the voltage.

COOLING FAN MOTOR
Cooling fan motor receives cooling fan motor operating voltage from cooling fan control module. The revolution speed of cooling fan motor is controlled by duty cycle of the voltage.

Component Function Check

Step 1:

Diagnosis Procedure

Step 1-2:

Step 3-7:

Step 7 (Continued)-11:

Component Inspection (Cooling Fan Motor)

Step 1:

Component Inspection (Cooling Fan Relay)