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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling Fan System (2GR-FKS) - Diagnostics & Circuit Tests >> Cooling Fan System >> On-Vehicle Inspection [12/2019 - 10/2022] >> Procedure

On-Vehicle Inspection [12/2019 - 10/2022]: Procedure

  1. INSPECT COOLING FAN SYSTEM 
    WARNING:

    To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fan when inspecting the cooling fan system.

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    1. Check the operation of the cooling fan while operating it using the GTS.

      Powertrain > Engine > Active Test 

      Tester Display
      Control the Engine Cooling Fan Duty Ratio

      OK

      Active Test Operation Fan Operation
      30 - 100% Cooling fan operates
      0% Cooling fan stops

      If the cooling fan motor (fan with motor assembly) does not operate, check the cooling fan circuit.

      Refer to Cooling Fan Circuit [12/2019 - 10/2022] 

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