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Home >> Nissan-Datsun >> 2020 >> 370Z Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 2) >> Component/Circuit Diagnosis >> Cooling Fan Motor >> Component Function Check
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Component Function Check

Cooling fan control module receives ON/OFF pulse duty signal from IPDM E/R. Corresponding to this ON/OFF pulse duty signal, cooling fan control module sends cooling fan motor operating voltage to cooling fan motor.

The revolution speed of cooling fan motor is controlled by duty cycle of the voltage.

  1. CHECK COOLING FAN FUNCTION 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Perform "FAN DUTY CONTROL" in "ACTIVE TEST" mode with CONSULT.
    3. Make sure that cooling fan speed varies according to the percentage.

    SYMBOL Without CONSULT

    1. Perform IPDM E/R auto active test and check cooling fan motors operation, Refer to Diagnosis Description .
    2. Make sure that cooling fan operates.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Refer to Diagnosis Procedure .

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