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Home >> Nissan-Datsun >> 2012 >> Maxima SV >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing >> Cooling Fan >> Component Inspection (Cooling Fan Motor)
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Component Inspection (Cooling Fan Motor)

  1. CHECK COOLING FAN MOTOR
    1. Turn ignition switch OFF.
    2. Disconnect cooling fan motor harness connector.
    3. Supply cooling fan motor terminals with battery voltage and check operation.
        Condition Terminals
      + -
      Cooling fan motor A 1 3 and 4
      2 3 and 4
      1 and 2 3
      1 and 2 4
      B 1, 2 3, 4
      Fig 1: Applying Battery Voltage To Cooling Fan Motor Terminals
      G08146017Courtesy of NISSAN NORTH AMERICA, INC.

      Check that cooling fan speed of condition B is higher than that of A. 

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace cooling fan motor. Refer to "REMOVAL AND INSTALLATION ".

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