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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Cooling System (HEV)) >> Radiator Fan System >> Inspection >> Inspection When Radiator Fans Do Not Stop >> Inspection When Only Main Fan Does Not Stop

Inspection When Only Main Fan Does Not Stop

WARNING: This page is about a different variant/trim than selected.
  1. CHECK MAIN FAN RELAY 1  .
    1. Disconnect the ground terminal from battery. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
    2. Remove the main fan relay 1. Ref. to COOLING (H4DO (HEV))>RADIATOR FAN RELAY>LOCATION .
    3. Perform unit check for the main fan relay 1. Ref. to COOLING (H4DO (HEV))>RADIATOR FAN RELAY>INSPECTION .

    Is the main fan relay 1 OK?

    Yes  : Go to  2.

    No 

    1. Replace the main fan relay 1.
    2. Restore the vehicle to its original state.
  2. INSULATION CHECK OF HARNESS BETWEEN MAIN FAN MOTOR AND SUB FAN MOTOR  .
    1. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
      NOTE: Main fan relay 1 is removed.
    2. Turn to IG ON.
    3. Check the radiator fan operation.

    Does the main fan motor rotate?

    Yes 

    1. Repair the harness between the main fan motor and the sub fan motor.
    2. Restore the vehicle to its original state.

    No 

    1. Replace the ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (HEV))>ENGINE CONTROL MODULE (ECM) .
    2. Restore the vehicle to its original state.