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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 761 (Cooling System) >> Cooling Fan Motor Component Inspection

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.
  1. 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.