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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (4 Of 4)) >> DTC/Circuit Diagnosis >> Engine Over Temperature >> Component Function Check >> PR25DD engine

PR25DD engine

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  1. PERFORM COMPONENT FUNCTION CHECK-1 
    WARNING: Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pressure fluid escaping from the radiator.

    Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up pressure to escape. Then turn the cap all the way off.

    Check the coolant level in the reservoir tank and radiator.

    G04074236Courtesy of NISSAN NORTH AMERICA, INC.

    Allow engine to cool before checking coolant level.

    Is the coolant level in the reservoir tank and/or radiator below the proper range?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    GO TO 2.

  2. PERFORM COMPONENT FUNCTION CHECK-2 

    Confirm whether customer filled the coolant or not.

    Did customer fill the coolant?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    GO TO 3.

  3. PERFORM COMPONENT FUNCTION CHECK-3 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Perform "FAN DUTY CONTROL" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.
    3. Check that cooling fan speed varies according to the percentage.

    SYMBOL Without CONSULT

    1. Activate IPDM E/R auto active test and check cooling fan motors operation. Refer to Diagnosis Description .
    2. Check that cooling fan operates.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Refer to DTC Diagnosis Procedure .

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