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Diagnostic Test

PERFORM COMPONENT FUNCTION CHECK-I

WARNING:
Never remove the reservoir tank 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.

Fig 1: Identifying Coolant Level In Reservoir Tank
Courtesy 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

Proceed to DIAGNOSIS PROCEDURE .

NO

GO TO STEP 2 .

PERFORM COMPONENT FUNCTION CHECK-II

Confirm whether customer filled the coolant or not.

Did customer fill the coolant?

YES

Proceed to DIAGNOSIS PROCEDURE .

NO

GO TO STEP 3 .

PERFORM COMPONENT FUNCTION CHECK-III

WITH CONSULT
1. Start the engine.
2. Perform "FAN DUTY CONTROL" in "ACTIVE TEST" mode with CONSULT.
3. Check that cooling fan speed varies according to the percentage.
  NOTE:
  Fan speed changes as the percentage changes.
WITHOUT CONSULT
1. Start the engine.
2. Perform IPDM E/R auto active test. Refer to DIAGNOSIS DESCRIPTION .
3. Check that cooling fan speed increase.
  NOTE:
  Speed changes gradually when performing the auto active test.
Is the inspection result normal?

YES

INSPECTION END

NO

Proceed to DIAGNOSIS PROCEDURE .