Radiator Cooling Fan Motor: Testing and Inspection

COOLING FAN MOTOR COMPONENT INSPECTION
1. Perform cooling fan control system inspection.
- If the cooling fan control does not operate properly, inspect the following.
- ECT sensor
- A/C switch
- A/C refrigerant pressure switch (High/low pressure)
- A/C refrigerant pressure switch (Middle pressure)
- VSS
- A/C magnetic clutch
- Fan control module power supply circuit
- Fan control module GND circuit
- Fan control signal circuit (between fan control module terminal B and PCM terminal 1W)
- If the all items are okay, replace cooling fan component.