Cooling Fan Motor Component Inspection
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
- Perform cooling fan control system inspection. (See 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.
- If the cooling fan control does not operate properly, inspect the following: